Document:

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                                                                   Exhibit 4(oo)

                               GUARANTEE AGREEMENT

                                 by and between

                              WELLS FARGO & COMPANY

                                  as Guarantor

                                       and

                        ---------------------------------

                              as Guarantee Trustee

                                   relating to

                             WELLS FARGO CAPITAL ___

                           ---------------------------

                            Dated as of _____________

                           ---------------------------
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                                TABLE OF CONTENTS

                                                                            Page
                                                                            ----

ARTICLE I DEFINITIONS.........................................................1

   SECTION 1.1.  Definitions..................................................1

ARTICLE II TRUST INDENTURE ACT................................................4

   SECTION 2.1.  Trust Indenture Act; Application.............................4
   SECTION 2.2.  List of Holders..............................................5
   SECTION 2.3.  Reports by the Guarantee Trustee.............................5
   SECTION 2.4.  Periodic Reports to the Guarantee Trustee....................5
   SECTION 2.5.  Evidence of Compliance with Conditions Precedent.............5
   SECTION 2.6.  Events of Default; Waiver....................................6
   SECTION 2.7.  Event of Default; Notice.....................................6
   SECTION 2.8.  Conflicting Interests........................................6

ARTICLE III POWERS, DUTIES AND RIGHTS OF THE GUARANTEE TRUSTEE................6

   SECTION 3.1.  Powers and Duties of the Guarantee Trustee...................6
   SECTION 3.2.  Certain Rights of Guarantee Trustee..........................8
   SECTION 3.3.  Compensation; Indemnity; Fees................................9

ARTICLE IV GUARANTEE TRUSTEE.................................................10

   SECTION 4.1.  Guarantee Trustee; Eligibility..............................10
   SECTION 4.2.  Appointment, Removal and Resignation of the
                 Guarantee Trustee...........................................10

ARTICLE V GUARANTEE..........................................................11

   SECTION 5.1.  Guarantee...................................................11
   SECTION 5.2.  Waiver of Notice and Demand.................................11
   SECTION 5.3.  Obligations Not Affected....................................12
   SECTION 5.4.  Rights of Holders...........................................12
   SECTION 5.5.  Guarantee of Payment........................................13
   SECTION 5.6.  Subrogation.................................................13
   SECTION 5.7.  Independent Obligations.....................................13
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ARTICLE VI COVENANTS AND SUBORDINATION.......................................13

   SECTION 6.1.  Subordination...............................................13
   SECTION 6.2.  Pari Passu Guarantees.......................................14

ARTICLE VII TERMINATION......................................................14

   SECTION 7.1.  Termination.................................................14

ARTICLE VIII MISCELLANEOUS...................................................14

   SECTION 8.1.  Successors and Assigns......................................14
   SECTION 8.2.  Amendments..................................................14
   SECTION 8.3.  Notices.....................................................15
   SECTION 8.4.  Benefit.....................................................16
   SECTION 8.5.  Governing Law...............................................16
   SECTION 8.6.  Counterparts................................................16

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         GUARANTEE AGREEMENT, dated as of _____________, between WELLS FARGO &
COMPANY, a Delaware corporation (the "Guarantor"), having its principal office
at 420 Montgomery Street, San Francisco, California 94163, and _______________,
as trustee (the "Guarantee Trustee"), for the benefit of the Holders (as defined
herein) from time to time of the Capital Securities (as defined herein) of WELLS
FARGO CAPITAL [ ], a Delaware statutory business trust (the "Issuer Trust").

                                    RECITALS

         WHEREAS, pursuant to an Amended and Restated Declaration of Trust and
Trust Agreement, of even date herewith (the "Trust Agreement"), among Wells
Fargo & Company, as Depositor, the Property Trustee, the Delaware Trustee, and
the Administrative Trustees (each as named therein) and the holders from time to
time of undivided beneficial interests in the assets of the Issuer Trust, the
Issuer Trust is issuing $___________ aggregate Liquidation Amount (as defined in
the Trust Agreement) of its [ ]% Capital Securities (liquidation amount $25 per
capital security) (the "Capital Securities"), representing preferred undivided
beneficial interests in the assets of the Issuer Trust and having the terms set
forth in the Trust Agreement; and

         WHEREAS, the Capital Securities will be issued by the Issuer Trust, and
the proceeds thereof, together with the proceeds from the issuance of the Issuer
Trust's Common Securities (as defined herein), will be used to purchase the
Debentures of the Guarantor, which Debentures will be deposited with
_______________, as Property Trustee under the Trust Agreement, as trust assets;
and

         WHEREAS, as an incentive for the Holders to purchase Capital
Securities, the Guarantor desires irrevocably and unconditionally to agree, to
the extent set forth herein, to pay to the Holders of the Capital Securities the
Guarantee Payments (as defined herein) and to make certain other payments on the
terms and conditions set forth herein.

         NOW, THEREFORE, in consideration of the purchase of Capital Securities
by each Holder, which purchase the Guarantor hereby acknowledges shall benefit
the Guarantor, the Guarantor executes and delivers this Guarantee Agreement for
the benefit of the Holders from time to time.

                                    ARTICLE I
                                   DEFINITIONS

     SECTION 1.1. Definitions.

         For all purposes of this Guarantee Agreement, except as otherwise
expressly provided or unless the context otherwise requires:

         (a) The terms defined in this Article have the meanings assigned to
them in this Article, and include the plural as well as the singular;

         (b) All other terms used herein that are defined in the Trust Indenture
Act, either directly or by reference therein, have the meanings assigned to them
therein;
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         (c) The words "include," "includes" and "including" shall be deemed to
be followed by the phrase "without limitation";

         (d) All accounting terms used but not defined herein have the meanings
assigned to them in accordance with United States generally accepted accounting
principles;

         (e) Unless the context otherwise requires, any reference to an
"Article" or a "Section" refers to an Article or a Section, as the case may be,
of this Guarantee Agreement; and

         (f) The words "hereby," "herein," "hereof" and "hereunder" and other
words of similar import refer to this Guarantee Agreement as a whole and not to
any particular Article, Section or other subdivision.

         "Affiliate" of any specified Person means any other Person directly or
indirectly controlling or controlled by or under direct or indirect common
control with such specified Person. For the purposes of this definition,
"control," when used with respect to any specified Person, means the power to
direct the management and policies of such Person, directly or indirectly,
whether through the ownership of voting securities, by contract or otherwise;
and the terms "controlling" and "controlled" have meanings correlative to the
foregoing.

         "Board of Directors" means the board of directors of the Guarantor or
any committee of the board of directors of the Guarantor, comprised of one or
more members of the board of directors of the Guarantor or officers of the
Guarantor, or both.

         "Capital Securities" has the meaning specified in the recitals to this
Guarantee Agreement.

         "Common Securities" means the securities representing common undivided
beneficial interests in the assets of the Issuer Trust.

         "Debentures" shall have the meaning specified in the Trust Agreement.

         "Distributions" shall have the meaning specified in the Trust
Agreement.

         "Event of Default" means (i) a default by the Guarantor in any of its
payment obligations under this Guarantee Agreement or (ii) a default by the
Guarantor in any other obligation hereunder that remains unremedied for 30 days.

         "Guarantee Agreement" means this Guarantee Agreement, as modified,
amended or supplemented from time to time.

         "Guarantee Payments" means the following payments or distributions,
without duplication, with respect to the Capital Securities, to the extent not
paid or made by or on behalf of the Issuer Trust: (i) any accumulated and unpaid
Distributions required to be paid on the Capital Securities, to the extent the
Issuer Trust shall have funds on hand available therefor at such time; (ii) the
Redemption Price with respect to any Capital Securities called for redemption by
the Issuer Trust, to the extent the Issuer Trust shall have funds on hand
available therefor at such time; and (iii) upon a voluntary or involuntary
dissolution, winding-up or liquidation of the

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Issuer Trust, unless Debentures are distributed to the Holders, the lesser of
(a) the Liquidation Distribution with respect to the Capital Securities, to the
extent that the Issuer Trust shall have funds on hand available therefor at such
time, and (b) the amount of assets of the Issuer Trust remaining available for
distribution to Holders on liquidation of the Issuer.

         "Guarantee Trustee" means __________________, solely in its capacity as
Guarantee Trustee and not in its individual capacity, until a Successor
Guarantee Trustee has been appointed and has accepted such appointment pursuant
to the terms of this Guarantee Agreement, and thereafter means each such
Successor Guarantee Trustee.

         "Guarantor" has the meaning specified in the first paragraph of this
Guarantee Agreement.

         "Holder" means any Holder (as defined in the Trust Agreement) of any
Capital Securities; provided, however, that in determining whether the holders
of the requisite percentage of Capital Securities have given any request,
notice, consent or waiver hereunder, "Holder" shall not include the Guarantor,
the Guarantee Trustee, or any Affiliate of the Guarantor or the Guarantee
Trustee.

         "Indenture" means the Junior Subordinated Indenture, dated as of
_______________, between Wells Fargo & Company and __________________, as
trustee, as the same may be modified, amended or supplemented from time to time.

         "Issuer Trust" has the meaning specified in the first paragraph of this
Guarantee Agreement.

         "Liquidation Distribution" shall have the meaning specified in the
Trust Agreement.

         "List of Holders" has the meaning specified in Section 2.2(a).

         "Majority in Liquidation Amount of the Capital Securities" means,
except as provided by the Trust Indenture Act, Capital Securities representing
more than 50% of the aggregate Liquidation Amount (as defined in the Trust
Agreement) of all Capital Securities then Outstanding (as defined in the Trust
Agreement).

         "Officers' Certificate" means, with respect to any Person, a
certificate signed by the Chairman or a Vice Chairman of the Board of Directors
of such Person or the President or a Vice President of such Person, and by the
Treasurer, an Assistant Treasurer, the Secretary or an Assistant Secretary of
such Person. Any Officers' Certificate delivered with respect to compliance with
a condition or covenant provided for in this Guarantee Agreement shall include:

         (a) a statement by each officer signing the Officers' Certificate that
such officer has read the covenant or condition and the definitions relating
thereto;

         (b) a brief statement of the nature and scope of the examination or
investigation undertaken by such officer in rendering the Officers' Certificate;

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         (c) a statement that such officer has made such examination or
investigation as, in such officer's opinion, is necessary to enable such officer
to express an informed opinion as to whether or not such covenant or condition
has been complied with; and

         (d) a statement as to whether, in the opinion of such officer, such
condition or covenant has been complied with.

         "Person" means a legal person, including any individual, corporation,
estate, partnership, joint venture, association, joint stock company, company,
limited liability company, trust, business trust, unincorporated association, or
government or any agency or political subdivision thereof, or any other entity
of whatever nature.

         "Redemption Price" shall have the meaning set forth in the Trust
Agreement.

         "Responsible Officer" means, with respect to the Guarantee Trustee, any
Senior Vice President, any Vice President, any Assistant Vice President, the
Secretary, any Assistant Secretary, the Treasurer, any Assistant Treasurer, any
Trust Officer or Assistant Trust Officer or any other officer of the Corporate
Trust Department of the Guarantee Trustee and also means, with respect to a
particular matter, any other officer to whom such matter is referred because of
that officer's knowledge of and familiarity with the particular subject.

         "Successor Guarantee Trustee" means a successor Guarantee Trustee
possessing the qualifications to act as Guarantee Trustee under Section 4.1.

         "Trust Agreement" means the Amended and Restated Declaration of Trust
and Trust Agreement of the Issuer Trust referred to in the recitals to this
Guarantee Agreement, as modified, amended or supplemented from time to time.

         "Trust Indenture Act" means the Trust Indenture Act of 1939 as in force
at the date as of which this Guarantee Agreement was executed; provided,
however, that in the event the Trust Indenture Act of 1939 is amended after such
date, "Trust Indenture Act" means, to the extent required by any such amendment,
the Trust Indenture Act of 1939 as so amended.

         "Vice President," when used with respect to the Guarantor, means any
duly appointed vice president, whether or not designated by a number or a word
or words added before or after the title "vice president."

                                   ARTICLE II
                               TRUST INDENTURE ACT

     SECTION 2.1. Trust Indenture Act; Application.

         Except as otherwise expressly provided herein, the Trust Indenture Act
shall apply as a matter of contract to this Guarantee Agreement for purposes of
interpretation, construction and defining the rights and obligations hereunder,
and this Guarantee Agreement, the Guarantor and the Guarantee Trustee shall be
deemed for all purposes hereof to be subject to and governed by the Trust
Indenture Act to the same extent as would be the case if this Guarantee
Agreement were qualified under the Trust Indenture Act on the date hereof.
Except as otherwise expressly

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provided herein, if and to the extent that any provision of this Guarantee
Agreement limits, qualifies or conflicts with the duties imposed by Sections 310
to 317, inclusive, of the Trust Indenture Act, such imposed duties shall
control.

     SECTION 2.2. List of Holders.

         (a) The Guarantor shall furnish or cause to be furnished to the
Guarantee Trustee (a) semiannually, on or before June 30 and December 31 of each
year, a list, in such form as the Guarantee Trustee may reasonably require, of
the names and addresses of the Holders (a "List of Holders") as of a date not
more than 15 days prior to the delivery thereof, and (b) at such other times as
the Guarantee Trustee may request in writing, within 30 days after the receipt
by the Guarantor of any such request, a List of Holders as of a date not more
than 15 days prior to the time such list is furnished, in each case to the
extent such information is in the possession or control of the Guarantor and has
not otherwise been received by the Guarantee Trustee in its capacity as such.
The Guarantee Trustee may destroy any List of Holders previously given to it on
receipt of a new List of Holders.

         (b) The Guarantee Trustee shall comply with the requirements of Section
311(a), Section 311(b) and Section 312(b) of the Trust Indenture Act.

     SECTION 2.3. Reports by the Guarantee Trustee.

         Within 60 days after May 15 each year, commencing May 15, _____, the
Guarantee Trustee shall provide to the Holders such reports as are required by
Section 313 of the Trust Indenture Act, if any, in the form and in the manner
provided by Section 313 of the Trust Indenture Act. If this Guarantee Agreement
shall have been qualified under the Trust Indenture Act, the Guarantee Trustee
shall also comply with the requirements of Section 313(d) of the Trust Indenture
Act.

     SECTION 2.4. Periodic Reports to the Guarantee Trustee.

         The Guarantor shall provide to the Guarantee Trustee and the Holders
such documents, reports and information, if any, as required by Section 314 of
the Trust Indenture Act and the compliance certificate required by Section 314
of the Trust Indenture Act, in the form, in the manner and at the times required
by Section 314 of the Trust Indenture Act, provided that such documents, reports
and information shall be required to be provided to the Securities and Exchange
Commission only if this Guarantee Agreement shall have been qualified under the
Trust Indenture Act.

     SECTION 2.5. Evidence of Compliance with Conditions Precedent.

         The Guarantor shall provide to the Guarantee Trustee such evidence of
compliance with such conditions precedent, if any, provided for in this
Guarantee Agreement that relate to any of the matters set forth in Section
314(c) of the Trust Indenture Act. Any certificate or opinion required to be
given by an officer of the Guarantor pursuant to Section 314(c)(1) may be given
in the form of an Officers' Certificate.

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     SECTION 2.6. Events of Default; Waiver.

         The Holders of at least a Majority in Liquidation Amount of the Capital
Securities may, by vote, on behalf of the Holders of all the Capital Securities,
waive any past default or Event of Default and its consequences. Upon such
waiver, any such default or Event of Default shall cease to exist, and any
default or Event of Default arising therefrom shall be deemed to have been
cured, for every purpose of this Guarantee Agreement, but no such waiver shall
extend to any subsequent or other default or Event of Default or impair any
right consequent thereon.

     SECTION 2.7. Event of Default; Notice.

         (a) The Guarantee Trustee shall, within 90 days after the occurrence of
an Event of Default known to the Guarantee Trustee, transmit by mail, first
class postage prepaid, to the Holders, notice of any such Event of Default known
to the Guarantee Trustee, unless such Event of Default has been cured before the
giving of such notice, provided that, except in the case of a default in the
payment of a Guarantee Payment, the Guarantee Trustee shall be protected in
withholding such notice if and so long as the board of directors, the executive
committee or a trust committee of directors and/or Responsible Officers of the
Guarantee Trustee in good faith determines that the withholding of such notice
is in the interests of the Holders.

         (b) The Guarantee Trustee shall not be deemed to have knowledge of any
Event of Default unless the Guarantee Trustee shall have received written
notice, or a Responsible Officer charged with the administration of this
Guarantee Agreement shall have obtained written notice, of such Event of
Default.

     SECTION 2.8. Conflicting Interests.

         The Trust Agreement and the Indenture shall be deemed to be
specifically described in this Guarantee Agreement for the purposes of clause
(i) of the first proviso contained in Section 310(b) of the Trust Indenture Act.

                                   ARTICLE III
               POWERS, DUTIES AND RIGHTS OF THE GUARANTEE TRUSTEE

     SECTION 3.1. Powers and Duties of the Guarantee Trustee.

         (a) This Guarantee Agreement shall be held by the Guarantee Trustee for
the benefit of the Holders, and the Guarantee Trustee shall not transfer this
Guarantee Agreement to any Person except to a Successor Guarantee Trustee on
acceptance by such Successor Guarantee Trustee of its appointment to act as
Guarantee Trustee hereunder. The right, title and interest of the Guarantee
Trustee, as such, hereunder shall automatically vest in any Successor Guarantee
Trustee, upon acceptance by such Successor Guarantee Trustee of its appointment
hereunder, and such vesting and cessation of title shall be effective whether or
not conveyancing documents have been executed and delivered pursuant to the
appointment of such Successor Guarantee Trustee.

         (b) If an Event of Default has occurred and is continuing, the
Guarantee Trustee shall enforce this Guarantee Agreement for the benefit of the
Holders.

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         (c) The Guarantee Trustee, before the occurrence of any Event of
Default and after the curing of all Events of Default that may have occurred,
shall undertake to perform only such duties as are specifically set forth in
this Guarantee Agreement (including pursuant to Section 2.1), and no implied
covenants shall be read into this Guarantee Agreement against the Guarantee
Trustee. If an Event of Default has occurred (that has not been cured or waived
pursuant to Section 2.6), the Guarantee Trustee shall exercise such of the
rights and powers vested in it by this Guarantee Agreement, and use the same
degree of care and skill in its exercise thereof, as a prudent person would
exercise or use under the circumstances in the conduct of his or her own
affairs.

         (d) No provision of this Guarantee Agreement shall be construed to
relieve the Guarantee Trustee from liability for its own negligent action, its
own negligent failure to act or its own willful misconduct, except that:

                  (i) prior to the occurrence of any Event of Default and after
         the curing or waiving of all such Events of Default that may have
         occurred:

                           (A) the duties and obligations of the Guarantee
                  Trustee shall be determined solely by the express provisions
                  of this Guarantee Agreement (including pursuant to Section
                  2.1), and the Guarantee Trustee shall not be liable except for
                  the performance of such duties and obligations as are
                  specifically set forth in this Guarantee Agreement (including
                  pursuant to Section 2.1); and

                           (B) in the absence of bad faith on the part of the
                  Guarantee Trustee, the Guarantee Trustee may conclusively
                  rely, as to the truth of the statements and the correctness of
                  the opinions expressed therein, upon any certificates or
                  opinions furnished to the Guarantee Trustee and conforming to
                  the requirements of this Guarantee Agreement (but in the case
                  of any such certificates or opinions that by any provision
                  hereof or of the Trust Indenture Act are specifically required
                  to be furnished to the Guarantee Trustee, the Guarantee
                  Trustee shall be under a duty to examine the same to determine
                  whether or not they conform to the requirements of this
                  Guarantee Agreement);

                  (ii) the Guarantee Trustee shall not be liable for any error
         of judgment made in good faith by a Responsible Officer of the
         Guarantee Trustee, unless it shall be proved that the Guarantee Trustee
         was negligent in ascertaining the pertinent facts upon which such
         judgment was made;

                  (iii) the Guarantee Trustee shall not be liable with respect
         to any action taken or omitted to be taken by it in good faith in
         accordance with the direction of the Holders of not less than a
         Majority in Liquidation Amount of the Capital Securities relating to
         the time, method and place of conducting any proceeding for any remedy
         available to the Guarantee Trustee, or exercising any trust or power
         conferred upon the Guarantee Trustee under this Guarantee Agreement;
         and

                  (iv) subject to Section 3.1(b), no provision of this Guarantee
         Agreement shall require the Guarantee Trustee to expend or risk its own
         funds or otherwise incur personal

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         financial liability in the performance of any of its duties or in the
         exercise of any of its rights or powers, if the Guarantee Trustee shall
         have reasonable grounds for believing that the repayment of such funds
         or liability is not reasonably assured to it under the terms of this
         Guarantee Agreement or adequate indemnity against such risk or
         liability is not reasonably assured to it.

     SECTION 3.2. Certain Rights of Guarantee Trustee.

         (a) Subject to the provisions of Section 3.1:

                  (i) The Guarantee Trustee may rely and shall be fully
         protected in acting or refraining from acting upon any resolution,
         certificate, statement, instrument, opinion, report, notice, request,
         direction, consent, order, bond, debenture, note, other evidence of
         indebtedness or other paper or document reasonably believed by it to be
         genuine and to have been signed, sent or presented by the proper party
         or parties.

                  (ii) Any direction or act of the Guarantor contemplated by
         this Guarantee Agreement shall be sufficiently evidenced by an
         Officers' Certificate unless otherwise prescribed herein.

                  (iii) Whenever, in the administration of this Guarantee
         Agreement, the Guarantee Trustee shall deem it desirable that a matter
         be proved or established before taking, suffering or omitting to take
         any action hereunder, the Guarantee Trustee (unless other evidence is
         herein specifically prescribed) may, in the absence of bad faith on its
         part, request and rely upon an Officers' Certificate which, upon
         receipt of such request from the Guarantee Trustee, shall be promptly
         delivered by the Guarantor.

                  (iv) The Guarantee Trustee may consult with legal counsel, and
         the written advice or opinion of such legal counsel with respect to
         legal matters shall be full and complete authorization and protection
         in respect of any action taken, suffered or omitted to be taken by it
         hereunder in good faith and in accordance with such advice or opinion.
         Such legal counsel may be legal counsel to the Guarantor or any of its
         Affiliates and may be one of its employees. The Guarantee Trustee shall
         have the right at any time to seek instructions concerning the
         administration of this Guarantee Agreement from any court of competent
         jurisdiction.

                  (v) The Guarantee Trustee shall be under no obligation to
         exercise any of the rights or powers vested in it by this Guarantee
         Agreement at the request or direction of any Holder unless such Holder
         shall have provided to the Guarantee Trustee such adequate security and
         indemnity as would satisfy a reasonable person in the position of the
         Guarantee Trustee against the costs, expenses (including attorneys'
         fees and expenses) and liabilities that might be incurred by it in
         complying with such request or direction, including such reasonable
         advances as may be requested by the Guarantee Trustee; provided that
         nothing contained in this Section (a)(v) shall be taken to relieve the
         Guarantee Trustee, upon the occurrence of an Event of Default, of its
         obligation to exercise the rights and powers vested in it by this
         Guarantee Agreement.

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                  (vi) The Guarantee Trustee shall not be bound to make any
         investigation into the facts or matters stated in any resolution,
         certificate, statement, instrument, opinion, report, notice, request,
         direction, consent, order, bond, debenture, note, other evidence of
         indebtedness or other paper or document, but the Guarantee Trustee, in
         its discretion, may make such further inquiry or investigation into
         such facts or matters as it may see fit.

                  (vii) The Guarantee Trustee may execute any of the trusts or
         powers hereunder or perform any duties hereunder either directly or by
         or through its agents or attorneys, and the Guarantee Trustee shall not
         be responsible for any misconduct or negligence on the part of any such
         agent or attorney appointed by it with due care hereunder.

                  (viii) Whenever in the administration of this Guarantee
         Agreement the Guarantee Trustee shall deem it desirable to receive
         instructions with respect to enforcing any remedy or right or taking
         any other action hereunder, the Guarantee Trustee (A) may request
         instructions from the Holders, (B) may refrain from enforcing such
         remedy or right or taking such other action until such instructions are
         received, and (C) shall be protected in acting in accordance with such
         instructions.

         (b) No provision of this Guarantee Agreement shall be deemed to impose
any duty or obligation on the Guarantee Trustee to perform any act or acts or
exercise any right, power, duty or obligation conferred or imposed on it in any
jurisdiction in which it shall be illegal, or in which the Guarantee Trustee
shall be unqualified or incompetent in accordance with applicable law, to
perform any such act or acts or to exercise any such right, power, duty or
obligation. No permissive power or authority available to the Guarantee Trustee
shall be construed to be a duty to act in accordance with such power and
authority.

     SECTION 3.3. Compensation; Indemnity; Fees.

         The Guarantor agrees:

         (a) to pay to the Guarantee Trustee from time to time such reasonable
compensation for all services rendered by it hereunder as may be agreed by the
Guarantor and the Guarantee Trustee from time to time (which compensation shall
not be limited by any provision of law in regard to the compensation of a
trustee of an express trust);

         (b) except as otherwise expressly provided herein, to reimburse the
Guarantee Trustee upon request for all reasonable expenses, disbursements and
advances incurred or made by the Guarantee Trustee in accordance with any
provision of this Guarantee Agreement (including the reasonable compensation and
the expenses and disbursements of its agents and counsel), except any such
expense, disbursement or advance as may be attributable to its negligence or bad
faith; and

         (c) to indemnify the Guarantee Trustee, any Affiliate of the Guarantee
Trustee and any officer, director, shareholder, employee, representative or
agent of the Guarantee Trustee (each, an "Indemnified Person") for, and to hold
each Indemnified Person harmless against, any loss, liability or expense
incurred without negligence, willful misconduct or bad faith on the part of the
Indemnified Person, arising out of or in connection with the acceptance or
administration of this Guarantee Agreement, including the costs and expenses of
defending itself against any

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claim or liability in connection with the exercise or performance of any of its
powers or duties hereunder.

         The Guarantee Trustee will not claim or exact any lien or charge on any
Guarantee Payments as a result of any amount due to it under this Guarantee
Agreement.

         The provisions of this Section 3.3 shall survive the termination of
this Guarantee Agreement or the resignation or removal of the Guarantee Trustee.

                                   ARTICLE IV
                                GUARANTEE TRUSTEE

     SECTION 4.1. Guarantee Trustee; Eligibility.

         (a) There shall at all times be a Guarantee Trustee which shall:

                  (i)  not be an Affiliate of the Guarantor; and

                  (ii) be a Person that is eligible pursuant to the Trust
         Indenture Act to act as such and has a combined capital and surplus of
         at least $50,000,000, and shall be a corporation meeting the
         requirements of Section 310(a) of the Trust Indenture Act. If such
         corporation publishes reports of condition at least annually, pursuant
         to law or to the requirements of its supervising or examining
         authority, then, for the purposes of this Section 4.1 and to the extent
         permitted by the Trust Indenture Act, the combined capital and surplus
         of such corporation shall be deemed to be its combined capital and
         surplus as set forth in its most recent report of condition so
         published.

         (b) If at any time the Guarantee Trustee shall cease to be eligible to
so act under Section 4.1(a), the Guarantee Trustee shall immediately resign in
the manner and with the effect set out in Section 4.2.

         (c) If the Guarantee Trustee has or shall acquire any "conflicting
interest" within the meaning of Section 310(b) of the Trust Indenture Act, the
Guarantee Trustee and Guarantor shall in all respects comply with the provisions
of Section 310(b) of the Trust Indenture Act.

     SECTION 4.2. Appointment, Removal and Resignation of the Guarantee Trustee.

         (a) Subject to Section 4.2(c), the Guarantee Trustee may be appointed
or removed at any time by the action of the Holders of a Majority in Liquidation
Amount of the Capital Securities delivered to the Guarantee Trustee and the
Guarantor (i) for cause or (ii) if a Debenture Event of Default (as defined in
the Trust Agreement) shall have occurred and be continuing at any time.

         (b) Subject to Section 4.2(c), the Guarantee Trustee may resign from
office (without need for prior or subsequent accounting) by giving written
notice thereof to the Holders and the Guarantor and by appointing a successor
Guarantee Trustee. The Guarantee Trustee shall appoint a successor by requesting
from at least three Persons meeting the requirements of Section 4.1(a)

                                       10
<PAGE>

their expenses and charges to serve as the Guarantee Trustee, and selecting the
Person who agrees to the lowest expenses and charges.

         (c) The Guarantee Trustee appointed hereunder shall hold office until a
Successor Guarantee Trustee shall have been appointed and shall have accepted
such appointment. No removal or resignation of a Guarantee Trustee shall be
effective until a Successor Guarantee Trustee has been appointed and has
accepted such appointment by written instrument executed by such Successor
Guarantee Trustee and delivered to the Guarantor and, in the case of any
resignation, the resigning Guarantee Trustee.

         (d) If no Successor Guarantee Trustee shall have been appointed and
accepted appointment as provided in this Section 4.2 within 60 days after
delivery to the Holders and the Guarantor of a notice of resignation, the
resigning Guarantee Trustee may petition, at the expense of the Guarantor, any
court of competent jurisdiction for appointment of a Successor Guarantee
Trustee. Such court may thereupon, after prescribing such notice, if any, as it
may deem proper, appoint a Successor Guarantee Trustee.

         (e) If a resigning Guarantee Trustee shall fail to appoint a successor,
or if a Guarantee Trustee shall be removed or become incapable of acting as
Guarantee Trustee and a replacement shall not be appointed prior to such
resignation or removal, or if a vacancy shall occur in the office of Guarantee
Trustee for any cause, the Holders of the Capital Securities, by the action of
the Holders of record of not less than 25% in aggregate Liquidation Amount (as
defined in the Trust Agreement) of the Capital Securities then Outstanding (as
defined in the Trust Agreement) delivered to such Guarantee Trustee, may appoint
a Successor Guarantee Trustee or Trustees. If no successor Guarantee Trustee
shall have been so appointed by the Holders of the Capital Securities and
accepted appointment, any Holder, on behalf of such Holder and all others
similarly situated, or any other Guarantee Trustee, may petition any court of
competent jurisdiction for the appointment of a successor Guarantee Trustee.

                                    ARTICLE V
                                    GUARANTEE

     SECTION 5.1. Guarantee.

         The Guarantor irrevocably and unconditionally agrees to pay in full to
the Holders the Guarantee Payments (without duplication of amounts theretofore
paid by or on behalf of the Issuer Trust), as and when due, regardless of any
defense, right of set-off or counterclaim that the Issuer Trust may have or
assert, except the defense of payment. The Guarantor's obligation to make a
Guarantee Payment may be satisfied by direct payment of the required amounts by
the Guarantor to the Holders or by causing the Issuer Trust to pay such amounts
to the Holders.

     SECTION 5.2. Waiver of Notice and Demand.

         The Guarantor hereby waives notice of acceptance of this Guarantee
Agreement and of any liability to which it applies or may apply, presentment,
demand for payment, any right to require a proceeding first against the
Guarantee Trustee, the Issuer Trust or any other Person before proceeding
against the Guarantor, protest, notice of nonpayment, notice of dishonor, notice
of redemption and all other notices and demands.

                                       11
<PAGE>

     SECTION 5.3. Obligations Not Affected.

         The obligations, covenants, agreements and duties of the Guarantor
under this Guarantee Agreement shall in no way be affected or impaired by reason
of the happening from time to time of any of the following:

         (a) the release or waiver, by operation of law or otherwise, of the
performance or observance by the Issuer Trust of any express or implied
agreement, covenant, term or condition relating to the Capital Securities to be
performed or observed by the Issuer Trust;

         (b) the extension of time for the payment by the Issuer Trust of any
portion of the Distributions (other than an extension of time for payment of
Distributions that results from the extension of any interest payment period on
the Debentures as provided in the Indenture), Redemption Price, Liquidation
Distribution or any other sums payable under the terms of the Capital Securities
or the extension of time for the performance of any other obligation under,
arising out of, or in connection with, the Capital Securities;

         (c) any failure, omission, delay or lack of diligence on the part of
the Holders to enforce, assert or exercise any right, privilege, power or remedy
conferred on the Holders pursuant to the terms of the Capital Securities, or any
action on the part of the Issuer Trust granting indulgence or extension of any
kind;

         (d) the voluntary or involuntary liquidation, dissolution,
receivership, insolvency, bankruptcy, assignment for the benefit of creditors,
reorganization, arrangement, composition or readjustment of debt of, or other
similar proceedings affecting, the Issuer Trust or any of the assets of the
Issuer Trust;

         (e) any invalidity of, or defect or deficiency in, the Capital
Securities;

         (f) the settlement or compromise of any obligation guaranteed hereby or
hereby incurred; or

         (g) any other circumstance whatsoever that might otherwise constitute a
legal or equitable discharge or defense of a guarantor (other than payment of
the underlying obligation), it being the intent of this Section 5.3 that the
obligations of the Guarantor hereunder shall be absolute and unconditional under
any and all circumstances.

         There shall be no obligation of the Holders to give notice to, or
obtain the consent of, the Guarantor with respect to the happening of any of the
foregoing.

     SECTION 5.4. Rights of Holders.

         The Guarantor expressly acknowledges that: (i) this Guarantee Agreement
will be deposited with the Guarantee Trustee to be held for the benefit of the
Holders; (ii) the Guarantee Trustee has the right to enforce this Guarantee
Agreement on behalf of the Holders; (iii) the Holders of a Majority in
Liquidation Amount of the Capital Securities have the right to direct the time,
method and place of conducting any proceeding for any remedy available to the
Guarantee Trustee in respect of this Guarantee Agreement or exercising any trust
or power conferred upon

                                       12
<PAGE>

the Guarantee Trustee under this Guarantee Agreement; and (iv) any Holder may
institute a legal proceeding directly against the Guarantor to enforce its
rights under this Guarantee Agreement without first instituting a legal
proceeding against the Guarantee Trustee, the Issuer Trust or any other Person.

     SECTION 5.5. Guarantee of Payment.

         This Guarantee Agreement creates a guarantee of payment and not of
collection. This Guarantee Agreement will not be discharged except by payment of
the Guarantee Payments in full (without duplication of amounts theretofore paid
by the Issuer Trust) or upon the distribution of Debentures to Holders as
provided in the Trust Agreement.

     SECTION 5.6. Subrogation.

         The Guarantor shall be subrogated to all rights (if any) of the Holders
against the Issuer Trust in respect of any amounts paid to the Holders by the
Guarantor under this Guarantee Agreement; provided, however, that the Guarantor
shall not (except to the extent required by mandatory provisions of law) be
entitled to enforce or exercise any rights which it may acquire by way of
subrogation or any indemnity, reimbursement or other agreement, in all cases as
a result of payment under this Guarantee Agreement, if, at the time of any such
payment, any amounts are due and unpaid under this Guarantee Agreement. If any
amount shall be paid to the Guarantor in violation of the preceding sentence,
the Guarantor agrees to hold such amount in trust for the Holders and to pay
over such amount to the Holders.

     SECTION 5.7. Independent Obligations.

         The Guarantor acknowledges that its obligations hereunder are
independent of the obligations of the Issuer Trust with respect to the Capital
Securities and that the Guarantor shall be liable as principal and as debtor
hereunder to make Guarantee Payments pursuant to the terms of this Guarantee
Agreement notwithstanding the occurrence of any event referred to in subsections
(a) through (g), inclusive, of Section 5.3 hereof.

                                   ARTICLE VI
                           COVENANTS AND SUBORDINATION

     SECTION 6.1. Subordination.

         The obligations of the Guarantor under this Guarantee Agreement will
constitute unsecured obligations of the Guarantor and will rank subordinate and
junior in right of payment to all Senior Debt (as defined in the Indenture) of
the Guarantor to the extent and in the manner set forth in the Indenture with
respect to the Debentures, and the provisions of Article Eighteen of the
Indenture will apply, mutatis mutandis, to the obligations of the Guarantor
hereunder. The obligations of the Guarantor hereunder do not constitute Senior
Debt (as defined in the Indenture) of the Guarantor.

                                       13
<PAGE>

     SECTION 6.2. Pari Passu Guarantees.

         The obligations of the Guarantor under this Guarantee Agreement shall
rank pari passu with the obligations of the Guarantor under (i) any similar
guarantee agreements issued by the Guarantor on behalf of the holders of
preferred or capital securities issued by any business trust, (ii) the Indenture
and the Debt Securities (as defined therein) issued thereunder; (iii) any
expense agreements entered into by the Guarantor in connection with the offering
of preferred or capital securities by any business trust, and (iv) any other
security, guarantee or other agreement or obligation that is expressly stated to
rank pari passu with the obligations of the Guarantor under this Guarantee
Agreement or with any obligation that ranks pari passu with the obligations of
the Guarantor under this Guarantee Agreement.

                                   ARTICLE VII
                                   TERMINATION

     SECTION 7.1. Termination.

         This Guarantee Agreement shall terminate and be of no further force and
effect upon (i) full payment of the Redemption Price of all Capital Securities,
(ii) the distribution of Debentures to the Holders in exchange for all of the
Capital Securities or (iii) full payment of the amounts payable in accordance
with Article IX of the Trust Agreement upon liquidation of the Issuer Trust.
Notwithstanding the foregoing, this Guarantee Agreement will continue to be
effective or will be reinstated, as the case may be, if at any time any Holder
is required to repay any sums paid with respect to Capital Securities or this
Guarantee Agreement.

                                  ARTICLE VIII
                                  MISCELLANEOUS

     SECTION 8.1. Successors and Assigns.

         All guarantees and agreements contained in this Guarantee Agreement
shall bind the successors, assigns, receivers, trustees and representatives of
the Guarantor and shall inure to the benefit of the Holders of the Capital
Securities then outstanding. Except in connection with a consolidation, merger
or sale involving the Guarantor that is permitted under Article Eight of the
Indenture and pursuant to which the successor or assignee agrees in writing to
perform the Guarantor's obligations hereunder, the Guarantor shall not assign
its obligations hereunder, and any purported assignment other than in accordance
with this provision shall be void.

     SECTION 8.2. Amendments.

         Except with respect to any changes that do not adversely affect the
rights of the Holders in any material respect (in which case no consent of the
Holders will be required), this Guarantee Agreement may only be amended with the
prior approval of the Holders of not less than a Majority in Liquidation Amount
of the Capital Securities. The provisions of Article VI of the Trust Agreement
concerning meetings of the Holders shall apply to the giving of such approval.

                                       14
<PAGE>

     SECTION 8.3. Notices.

         Any notice, request or other communication required or permitted to be
given hereunder shall be in writing, duly signed by the party giving such
notice, and delivered, telecopied or mailed by first class mail as follows:

         (a) if given to the Guarantor, to the address or telecopy number set
forth below or such other address or telecopy number as the Guarantor may give
notice to the Guarantee Trustee and the Holders:

                  Wells Fargo & Company
                  420 Montgomery Street
                  San Francisco, California  94104
                  Attention:  Chief Financial Officer
                  MAC# A0101-121
                  Telecopy:  (415) 975-7151

         (b) if given to the Guarantee Trustee, to the address or telecopy
number set forth below or such other address or telecopy number as the Guarantee
Trustee may give notice to the Guarantor and Holders:

                  -----------------------
                  -----------------------
                  -----------------------
                  -----------------------
                  -----------------------
                  -----------------------

                  with a copy to:

                  Wells Fargo Capital [  ]

                  c/o Wells Fargo & Company
                  Wells Fargo Center
                  MAC #N9305-173
                  Sixth Street and Marquette Avenue
                  Minneapolis, Minnesota  55479
                  Attention:  Corporate Secretary
                  Telecopy:  (612) 667-6082

         (c) if given to any Holder, at the address set forth on the books and
records of the Issuer Trust.

         All notices hereunder shall be deemed to have been given when received
in person, telecopied with receipt confirmed, or mailed by first class mail,
postage prepaid, except that if a notice or other document is refused delivery
or cannot be delivered because of a changed address

                                       15
<PAGE>

of which no notice was given, such notice or other document shall be deemed to
have been delivered on the date of such refusal or inability to deliver.

     SECTION 8.4. Benefit.

         This Guarantee Agreement is solely for the benefit of the Holders and
is not separately transferable from the Capital Securities.

     SECTION 8.5. Governing Law.

         THIS GUARANTEE AGREEMENT SHALL BE GOVERNED BY AND CONSTRUED IN
ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK.

     SECTION 8.6. Counterparts.

         This instrument may be executed in any number of counterparts, each of
which so executed shall be deemed to be an original, but all such counterparts
shall together constitute but one and the same instrument.

                                       16
<PAGE>

         IN WITNESS WHEREOF, the parties hereto have executed this Guarantee
Agreement as of the day and year first above written.

                                        WELLS FARGO & COMPANY,
                                          as Guarantor

                                        By:
                                            -----------------------------------
                                            Name:
                                            Title:

                                        ---------------------------------------
                                        as Guarantee Trustee

                                        By:
                                            -----------------------------------
                                            Name:
                                            Title:

                                       17<PAGE>

                                                                   EXHIBIT 4(pp)

                             WELLS FARGO & COMPANY,

                        [_____________________________],
                     as Unit Agent and as Collateral Agent,
                  and [__________________________], as Trustee
                  and [______________________], as Paying Agent
                     under the Indenture referred to herein,

                                       AND

                          THE HOLDERS FROM TIME TO TIME
                          OF THE UNITS DESCRIBED HEREIN

                                 UNIT AGREEMENT

                      Dated as of **[_____________, 20___]
<PAGE>

                                TABLE OF CONTENTS

ARTICLE 1 DEFINITIONS AND OTHER PROVISIONS OF GENERAL APPLICATION.............1
         SECTION 1.01.  Definitions...........................................1

ARTICLE 2  UNITS..............................................................9
         SECTION 2.01.  Forms Generally.......................................9
         SECTION 2.02.  Form of Certificate of Authentication and
                          Countersignature....................................9
         SECTION 2.03.  Amount Unlimited; Issuable in Series..................9
         SECTION 2.04.  Denominations........................................11
         SECTION 2.05.  Rights and Obligations Evidenced by the Units........11
         SECTION 2.06.  Execution, Authentication, Delivery and Dating.......11
         SECTION 2.07.  Temporary Unit Certificates..........................11
         SECTION 2.08.  Registration of Transfer and Exchange; Global Units..12
         SECTION 2.09.  Mutilated, Destroyed, Lost and Stolen Unit
                          Certificates.......................................14
         SECTION 2.10.  Persons Deemed Owners................................16
         SECTION 2.11.  Cancellation.........................................16
         SECTION 2.12.  Exchange of Global Units and Definitive Units........17

ARTICLE 3  THE PURCHASE CONTRACTS............................................18
         SECTION 3.01.  Form and Execution of Purchase Contracts;
                          Temporary Purchase Contracts.......................18
         SECTION 3.02.  Number Unlimited Issuable in Series..................19
         SECTION 3.03.  Countersignature, Execution on Behalf of Holder and
                          Delivery of Purchase Contracts.....................21
         SECTION 3.04.  Further Provisions Relating to Issuance of
                          Purchase Contracts.................................23
         SECTION 3.05.  Purchase of Purchase Contract Property; Optional
                          Acceleration of Purchase Obligations;
                          Authorization of Agent by Holder; Transferees
                          Bound..............................................23
         SECTION 3.06.  Payment of Purchase Price............................25
         SECTION 3.07.  Delivery of Purchase Contract Property or
                          Other Amounts......................................27
         SECTION 3.08.  Charges and Taxes....................................28

ARTICLE 4 REMEDIES...........................................................28
         SECTION 4.01.  Acceleration of Obligations..........................28
         SECTION 4.02.  Unconditional Rights under Purchase Contracts;
                          Limitation on Proceedings by Holders...............28
         SECTION 4.03.  Restoration of Rights and Remedies...................29
         SECTION 4.04.  Rights and Remedies Cumulative.......................29
         SECTION 4.05.  Delay or Omission Not Waiver.........................30
         SECTION 4.06.  Waiver of Past Defaults..............................30
         SECTION 4.07.  Undertaking for Costs................................30

                                       i
<PAGE>

         SECTION 4.08.  Waiver of Stay or Extension Laws.....................31
         SECTION 4.09.  Agent May File Proofs of Claims......................31
         SECTION 4.10.  Suits for Enforcement................................31
         SECTION 4.11.  Control by Holders...................................32

ARTICLE 5 SECURITY INTERESTS AND COLLATERAL AGENT............................32
         SECTION 5.01.  Granting of Security Interests; Rights and
                          Remedies of Collateral Agent; Perfection...........32
         SECTION 5.02.  Distribution of Principal and Interest;
                          Release of Collateral..............................33
         SECTION 5.03.  Certain Duties and Responsibilities of the
                          Collateral Agent...................................34
         SECTION 5.04.  Knowledge of the Collateral Agent....................35
         SECTION 5.05.  Certain Rights of Collateral Agent...................35
         SECTION 5.06.  Compensation and Reimbursements......................36
         SECTION 5.07.  Corporate Collateral Agent Required Eligibility......36
         SECTION 5.08.  Resignation and Removal; Appointment of Successor....37
         SECTION 5.09.  Acceptance of Appointment by Successor...............38
         SECTION 5.10.  Merger, Conversion, Consolidation or Succession
                          to Business........................................39
         SECTION 5.11.  Money Held in Trust..................................39
ARTICLE 6 THE AGENT..........................................................39
         SECTION 6.01.  Certain Duties and Responsibilities..................39
         SECTION 6.02.  Notice of Default....................................40
         SECTION 6.03.  Certain Rights of Agent..............................40
         SECTION 6.04.  Not Responsible for Recitals or Issuance of Units....41
         SECTION 6.05.  May Hold Units.......................................42
         SECTION 6.06.  Money Held in Trust..................................42
         SECTION 6.07.  Compensation and Reimbursement.......................42
         SECTION 6.08.  Corporate Agent Required: Eligibility................43
         SECTION 6.09.  Resignation and Removal: Appointment of Successor....43
         SECTION 6.10.  Acceptance of Appointment by Successor...............44
         SECTION 6.11.  Merger, Conversion, Consolidation or Succession
                          to Business........................................45
         SECTION 6.12.  Appointment of Authenticating Agent..................45
         SECTION 6.13.  Corporation to Furnish Agent Names and Addresses
                          of Holders.........................................47
         SECTION 6.14.  Preservation of Information; Communications
                          to Holders.........................................48
         SECTION 6.15.  No Obligation of Holder..............................48
         SECTION 6.16.  Tax Compliance.......................................49

ARTICLE 7 SUPPLEMENTAL AGREEMENTS............................................50
         SECTION 7.01.  Supplemental Agreements Without Consent
                          of Holders.........................................50
         SECTION 7.02.  Supplemental Agreements with Consent of Holders......51
         SECTION 7.03.  Execution of Supplemental Agreements.................51
         SECTION 7.04.  Effect of Supplemental Agreements....................52

                                       ii
<PAGE>

         SECTION 7.05.  Reference to Supplemental Agreements.................52

ARTICLE 8 CONSOLIDATION, MERGER, SALE OR CONVEYANCE..........................52
         SECTION 8.01.  Covenant Not to Merge, Consolidate, Sell or
                          Convey Property Except Under Certain
                          Conditions.........................................52
         SECTION 8.02.  Rights and Duties of Successor Corporation...........53
         SECTION 8.03.  Opinion of Counsel to Agent..........................53

ARTICLE 9 COVENANTS..........................................................53
         SECTION 9.01.  Performance under Purchase Contracts.................53
         SECTION 9.02.  Maintenance of Office or Agency......................53
         SECTION 9.03.  Money for Payments to Be Held in Trust...............54
         SECTION 9.04.  Statements of Officers of the Corporation
                          as to Default......................................55

ARTICLE 10 REDEMPTIONS.......................................................55
         SECTION 10.01. Optional Redemption of Purchase Contracts;
                          Redemption Upon Redemption of Debt Securities......55
         SECTION 10.02. Notice of Redemption; Partial Redemptions............56
         SECTION 10.03. Payment of Purchase Contracts Called for
                          Redemption.........................................57
         SECTION 10.04. Exclusion of Certain Purchase Contracts from
                          Eligibility for Selection for Redemption...........57

ARTICLE 11 MISCELLANEOUS PROVISIONS..........................................58
         SECTION 11.01. Incorporators, Stockholders, Officers and
                          Directors of the Corporation Immune from
                          Liability..........................................58
         SECTION 11.02. Compliance Certificates and Opinions.................58
         SECTION 11.03. Form of Documents Delivered to Agent or
                          Collateral Agent...................................59
         SECTION 11.04. Acts of Holders......................................59
         SECTION 11.05. Notices, Etc.........................................60
         SECTION 11.06. Notices to Holders; Waiver...........................60
         SECTION 11.07. Effect of Headings and Table of Contents.............61
         SECTION 11.08. Successors and Assigns...............................61
         SECTION 11.09. Separability Clause..................................61
         SECTION 11.10. Benefits of Agreement................................61
         SECTION 11.11. Governing Law........................................61
         SECTION 11.12. Legal Holidays.......................................62
         SECTION 11.13. Counterparts.........................................62
         SECTION 11.14. Appointment of Certain Agents........................62
         SECTION 11.15. Inspection of Agreement..............................62

                                       iii
<PAGE>

     UNIT AGREEMENT, dated as of ______________, 20___, by and among WELLS FARGO
& COMPANY, a Delaware corporation (the "Corporation"), _______
_______________________, a ______________ banking corporation ("___________"),
acting solely as unit agent and collateral agent under this Agreement (in its
capacity as unit agent, the "Agent", and, in its capacity as collateral agent,
the "Collateral Agent"), except to the extent that this Agreement specifically
states that the Agent is acting in another capacity, ______________, as trustee
under the Indenture described below (the "Trustee") and, ______________ as
paying agent under the Indenture, (the "Paying Agent"), and the holders from
time to time of the Units described herein.

     WHEREAS, the Corporation has entered into an Indenture dated as of
____________ with the Trustee (as further supplemented or amended from time to
time, the "Indenture");

     WHEREAS, the Corporation has duly authorized the issuance, from time to
time, pursuant to the Indenture of [senior] [subordinated] debt securities
("Debt Securities");

     WHEREAS, the Corporation has duly authorized the issuance, from time to
time, of Purchase Contracts ("Purchase Contracts") requiring the holder thereof
to purchase or sell (i) securities of an entity unaffiliated with the
Corporation, a basket of such securities, an index or indices of such securities
or any combination of the above, (ii) currencies or (iii) commodities, in each
case on terms to be determined at the time of sale;

     WHEREAS, the Corporation desires to provide for the issuance of units
("Units") consisting of one or more Purchase Contracts, Debt Securities, or any
combination thereof;

     WHEREAS, the parties hereto wish to secure the performance by the holders
of Units consisting of Debt Securities and Purchase Contracts of their
obligations under such Purchase Contracts and the observance and performance of
the covenants and agreements contained herein and in such Purchase Contracts;

     NOW, THEREFORE, in consideration of the premises and the purchases of the
Units by the holders thereof, the Corporation, the Agent, the Collateral Agent,
the Trustee and the Paying Agent mutually covenant and agree as follows:

                                    ARTICLE 1
             DEFINITIONS AND OTHER PROVISIONS OF GENERAL APPLICATION

     SECTION 1.01. Definitions. For all purposes of this Agreement, except as
otherwise expressly provided or unless the context otherwise requires:

          (i) the terms defined in this Article have the meanings assigned to
     them in this Article and include the plural as well as the singular;

                                       1
<PAGE>

          (ii) all accounting terms not otherwise defined herein have the
     meanings assigned to them in accordance with generally accepted accounting
     principles in the United States in effect at the time of any computation;
     and

          (iii) the words "herein", "hereof" and "hereunder" and other words of
     similar import refer to this Agreement as a whole and not to any particular
     Article, Section or other subdivision.

     "Accelerated Settlement Date" with respect to a Purchase Contract of any
series, means any date to which the Corporation accelerates the obligations of
the Holder of the Units of which such Purchase Contract constitutes a part,
subject to any limitations as may be specified pursuant to Section 3.02.

     "Acceleration Notice", has the meaning specified in Section 3.05(b).

     "Act", with respect to any Holder, has the meaning specified in Section
11.04.

     "Affiliate" of any specified Person means any other Person directly or
indirectly controlling or controlled by or under direct or indirect common
control with such specified Person. For the purposes of this definition,
"control", with respect to any specified Person, means the power to direct the
management and policies of such Person, directly or indirectly, whether through
the ownership of voting securities, by contract or otherwise; and the terms
"controlling" and "controlled" have meanings correlative to the foregoing.

     "Agent" means the Person named as the "Agent" in the first paragraph of
this Agreement until a successor Agent shall have become such pursuant to the
applicable provisions of this Agreement, and thereafter "Agent" shall mean such
successor Person.

     "Agreement" means this instrument as originally executed or as it may from
time to time be supplemented or amended by one or more agreements supplemental
hereto entered into pursuant to the applicable provisions hereof.

     "Authenticating Agent" means any Person authorized by the Agent to act on
behalf of the Agent to countersign and execute Purchase Contracts.

     "Bankruptcy Event" means any of the following events: (i) a court having
jurisdiction in the premises shall enter a decree or order for relief with
respect to the Corporation in an involuntary case under any applicable
bankruptcy, insolvency or other similar law now or hereafter in effect, or
appointing a receiver, liquidator, assignee, custodian, trustee, sequestrator
(or similar official) of the Corporation or for any substantial part of its
property or ordering the winding up or liquidation of its affairs, and such
decree or order shall remain unstayed and in effect for a period of 60
consecutive days; or (ii) the Corporation shall commence a voluntary case under
any applicable bankruptcy, insolvency or other similar law now or hereafter in
effect, or consent to the entry of an order for relief in an involuntary case
under any such law, or consent to the appointment of or taking possession by a
receiver, liquidator, assignee, custodian, trustee, sequestrator (or similar

                                       2
<PAGE>

official) of the Corporation or for any substantial part of its property, or
make any general assignment for the benefit of creditors.

     "Board of Directors", means the board of directors of the Corporation or
any other committee duly authorized to act on its behalf with respect to this
Agreement.

     "Board Resolution", means one or more resolutions, certified by the
Secretary or an Assistant Secretary of the Corporation to have been duly adopted
or consented to by the Board of Directors and to be in full force and effect on
the date of such certification and delivered to the Agent or the Collateral
Agent, as the case may be. Where any provision of this Agreement refers to
action to be taken pursuant to a Board Resolution, such action may be taken by
any committee of the Board or the Corporation or any officer or employee of the
Corporation authorized to take such action by a Board Resolution.

     "Business Day" means any day that is not a Saturday or Sunday or a legal
holiday in New York, New York or Minneapolis, Minnesota or a day on which
banking institutions in New York, New York or Minneapolis, Minnesota are
authorized or required by law, regulation or executive order to be closed.

     "Cash Settlement" has the meaning set forth in Section 3.06(a)(i).

     "Closed Purchase Contract" means any Purchase Contract with respect to
which a purchase or sale of, or other settlement with respect to, the Purchase
Contract Property has occurred pursuant to Article Four or that has been
redeemed or is otherwise not Outstanding.

     "Collateral" has the meaning specified in Section 5.01(a).

     "Collateral Agent" means the Person named as the "Collateral Agent" in the
first paragraph of this Agreement until a successor Collateral Agent shall have
become such pursuant to the applicable provisions of this Agreement, and
thereafter "Collateral Agent" shall mean such successor Person.

     "Corporate Trust Office" means the office of the Agent or the Collateral
Agent, as appropriate, at which at any particular time its corporate trust
business shall be principally administered, which office at the date hereof is
located at ________________ ____________________________.

     "Corporation" means the Person named as the "Corporation" in the first
paragraph of this Agreement until a successor Person shall have become such
pursuant to the applicable provisions of this Agreement, and thereafter the
"Corporation" shall mean such successor Person.

     "Debt Securities" has the meaning stated in the second recital in this
Agreement and more particularly means any Debt Securities originally issued as
part of a Unit of any series.

                                       3
<PAGE>

     "Debt Security Register" with respect to any Debt Securities constituting a
part of the Units of any series means the security register of the Corporation
maintained by the Trustee pursuant to the Indenture.

     "Debt Security Settlement" has the meaning set forth in Section 3.06 (a)
(ii).

     "Default" means an Event of Default under the Indenture or a Purchase
Contract Default.

     "Definitive Securities" means any Security in definitive form.

     "Definitive Unit" means any Unit comprised of Definitive Securities.

     "Depositary" means, with respect to Registered Units, DTC, or any
successor, or, with respect to any Unregistered Units, a common depositary for
Morgan Guaranty Trust Company of New York, Brussels office, as operator of the
Euroclear System, or Cedel Bank, societe anonyme, or any other relevant
depositary named in an Issuer Order, in each case, as the Holder of any Global
Units.

     "DTC" means The Depository Trust Company or its nominee.

     "Event of Default", with respect to the Debt Securities, has the meaning
set forth in the Indenture.

     "Exchange Act" means the Securities Exchange Act of 1934, as amended.

     "Global Debt Security" means a global Debt Security in bearer or registered
form originally issued as part of a Global Unit of any series.

     "Global Purchase Contract" means a global Purchase Contract in bearer or
registered form originally issued as part of a Global Unit of any series.

     "Global Security" means any of a Global Debt Security or a Global Purchase
Contract.

     "Global Unit" means any Unit that comprises one or more Global Securities
and is represented by a global Unit Certificate in bearer or registered form.

     "Holder" means (i) in the case of any Registered Security or Registered
Unit, the Person in whose name such Registered Security or the Registered
Securities constituting a part of such Registered Unit are registered on the
relevant Security Register and (ii) in the case of any Unregistered Security or
Unregistered Unit, the bearer of such Security or Unit, provided that, in the
case of (i) above, so long as the Registered Securities constituting part of
such Units are not separable, "Holder" shall mean the Person in whose name a
Registered Security constituting a part of such Unit is registered on the
Security Register specified pursuant to Section 2.03.

                                       4
<PAGE>

     "Indenture" has the meaning specified in the first recital in this
Agreement.

     "Initial Acceleration Date" means, with respect to Purchase Contracts of
any series, the initial date, if any, specified pursuant to Section 3.02 on
which such Purchase Contracts may be accelerated pursuant to Section 3.05
hereof.

     "Interest Payment Date", with respect to any Debt Security, has the meaning
set forth in the Indenture or in any document executed pursuant to the terms of
the Indenture relating to such Debt Security.

     "Issuer Order" or "Issuer Request", means a written order or request signed
in the name of the Corporation by the Chairman of the Board, a Vice Chairman of
the Board, the President, a Vice President, the Treasurer, an Assistant
Treasurer or any other person authorized by the Board of Directors and delivered
to the Agent or the Collateral Agent, as the case may be.

     "Letter of Representations" means, as of any date, the Letter of
Representations or Letters of Representations to DTC in effect as of such date
from the Agent relating to the Units covered by this Agreement.

     "Minimum Acceleration Amount" means the minimum number of Purchase
Contracts of any series as specified pursuant to Section 3.02 that may be
subject to acceleration pursuant to Section 3.05.

     "Minimum Remaining Amount" means the minimum number of Purchase Contracts
of any series as specified pursuant to Section 3.02 that must remain outstanding
immediately following any acceleration pursuant to Section 3.05.

     "Officers' Certificate" means a certificate signed by the Chairman of the
Board, a Vice Chairman of the Board, the President, or a Vice President and the
Treasurer, an Assistant Treasurer, the Controller, an Assistant Controller, the
Secretary or an Assistant Secretary of the Corporation and delivered to the
Agent or the Collateral Agent, as the case may be.

     "Opinion of Counsel" means an opinion in writing signed by legal counsel,
who may be an employee of or counsel to the Corporation and who shall otherwise
be satisfactory to the Agent or the Collateral Agent, as the case may be.

     "Optional Definitive Unit Request" has the meaning set forth in Section
2.12.

     "Outstanding", with respect to any Unit, Debt Security or Purchase Contract
means, as of the date of determination, all Units, Debt Securities or Purchase
Contracts as the case may be, evidenced by Units theretofore authenticated,
countersigned, executed and delivered under this Agreement, except:

                                       5
<PAGE>

     (A) Units, Debt Securities or Purchase Contracts theretofore deemed
     cancelled, cancelled by the Agent or Trustee, as the case may be, or
     delivered to the Agent or Trustee, as the case may be, for cancellation, in
     each case pursuant to the provisions of this Agreement or the Indenture;

     (B) Closed Purchase Contracts; and

     (C) Units, Debt Securities or Purchase Contracts evidenced by Unit
     Certificates in exchange for or in lieu of which other Unit Certificates
     have been authenticated, countersigned, executed and delivered pursuant to
     this Agreement, other than any such Units, Debt Securities or Purchase
     Contracts, as the case may be, evidenced by a Unit Certificate in respect
     of which there shall have been presented to the Agent proof satisfactory to
     it that such Unit Certificate is held by a bona fide purchaser in whose
     hands the Units, Debt Securities or Purchase Contracts, as the case may be,
     evidenced by such Unit Certificate are valid obligations of the
     Corporation;

provided, however, that in determining whether the Holders of the requisite
number of Outstanding Units, Debt Securities and Purchase Contracts, as the case
may be, have given any request, demand, authorization, direction, notice,
consent or waiver hereunder, Units, Debt Securities and Purchase Contracts owned
by the Corporation or any Affiliate of the Corporation shall be disregarded and
deemed not to be Outstanding, except that, in determining whether the Agent
shall be protected in relying upon any such request, demand, authorization,
direction, notice, consent or waiver, only Units, Debt Securities and Purchase
Contracts which the Agent knows to be so owned shall be so disregarded. Units,
Debt Securities and Purchase Contracts that are so owned but that have been
pledged in good faith may be regarded as Outstanding if the pledgee establishes
to the satisfaction of the Agent the pledgee's right so to act with respect to
such Units, Debt Securities and Purchase Contracts and that the pledgee is not
the Corporation or any Affiliate of the Corporation.

     "Paying Agent" means any Person authorized by the Corporation to pay the
Settlement Amount, redemption price or any other sums payable by the Corporation
with respect to any Purchase Contracts; provided that such Person shall be a
bank or trust company organized and in good standing under the laws of the
United States or any state in the United States, having (together with its
parent) capital, surplus and undivided profits aggregating at least $50,000,000
or any foreign branch or office of such a bank or trust company, and, subject to
the foregoing, may be an Affiliate of the Corporation.

     "Person" means any individual, corporation, partnership, limited liability
company, joint venture, association, joint-stock company, trust, unincorporated
organization or government or any agency or political subdivision thereof.

     "Pledged Items" means, as of any date, any Debt Securities constituting a
part of the Units of any series or any and all other securities, instruments or
other property as may be specified pursuant to Section 3.02.

                                       6
<PAGE>

     "Purchase Contract Default" with respect to Purchase Contracts of any
series means the occurrence of any of the following events: (i) failure of the
Corporation to deliver the Purchase Contract Property or the cash value thereof
for such Purchase Contracts against tender of payment therefor on any Settlement
Date, in the case of Purchase Contracts that obligate the Corporation to sell
the Purchase Contract Property, (ii) failure of the Corporation to pay the
Settlement Amount for such Purchase Contracts when the same becomes due and
payable, in the case of Purchase Contracts that obligate the Corporation to
purchase the Purchase Contract Property, (iii) failure on the part of the
Corporation duly to observe or perform any other of the covenants or agreements
on its part in such Purchase Contracts or in this Agreement with respect to such
Purchase Contracts and continuance of such failure for a period of 60 days after
the date on which written notice of such failure, requiring the Corporation to
remedy the same, shall have been given to the Corporation and the Agent by
Holders of at least 25% of the affected Purchase Contracts at the time
Outstanding, (iv) a Bankruptcy Event or (v) any other Purchase Contract Default
provided in any supplemental agreement under which such series of Purchase
Contracts is issued or in the form of such Purchase Contracts.

     "Purchase Contract Property" with respect to a Purchase Contract of any
series has the meaning specified pursuant to Section 3.02.

     "Purchase Contract Register" and "Purchase Contract Registrar" have the
respective meanings specified in Section 2.08.

     "Purchase Contracts" has the meaning stated in the third recital in this
Agreement and more particularly means any Purchase Contracts constituting a part
of the Units of any series countersigned, executed and delivered in accordance
with this Agreement.

     "Purchase Price" of any Purchase Contract that obligates the Corporation to
sell, and the Holder to purchase, the Purchase Contract Property has the meaning
specified pursuant to Section 3.02.

     "Registered Debt Security" means any Debt Security registered on the Debt
Security Register.

     "Registered Purchase Contract" means any Purchase Contract registered on
the Purchase Contract Register.

     "Registered Security" means any of a Registered Debt Security or Registered
Purchase Contract.

     "Registered Unit" means any Unit consisting of Registered Securities.

     "Regular Record Date" has the meaning specified pursuant to Section 2.03.

                                       7
<PAGE>

     "Responsible officer," with respect to the Agent or Collateral Agent, means
the chairman or vice-chairman of the board of directors, the chairman or
vice-chairman of the executive committee of the board of directors, the
president, any vice president, the secretary, any assistant secretary, the
treasurer, any assistant treasurer, the cashier, any assistant cashier, any
senior trust officer, any trust officer or assistant trust officer, the
controller and any assistant controller or other officer of the Agent or
Collateral Agent customarily performing functions similar to those performed by
any of the above-designated officers and also means, with respect to a
particular corporate trust or agency matter, any other officer to whom such
matter is referred because of his knowledge and familiarity with the particular
subject.

     "Security" means any of a Debt Security or a Purchase Contract.

     "Security Register" means either of the Debt Security Register or the
Purchase Contract Register.

     "Settlement Amount" of any Purchase Contract that obligates the Corporation
to purchase, and the Holder to sell, the Purchase Contract Property has the
meaning specified pursuant to Section 3.02.

     "Settlement Date" means the Stated Settlement Date and any Accelerated
Settlement Date.

     "SRO" has the meaning specified in Section 2.01.

     "Stated Settlement Date" of any Purchase Contract of any series has the
meaning specified pursuant to Section 3.02.

     "Trustee", with respect to any Debt Securities, means the Person acting as
Trustee under the Indenture until a successor Trustee shall have become such
pursuant to the applicable provisions of such Indenture, and thereafter
"Trustee" shall mean such successor Trustee.

     "Unit" has the meaning stated in the fourth recital to this Agreement and
more particularly the collective rights and obligations of the Corporation and a
Holder with respect to the Securities comprising such Unit, as specified
pursuant to Section 2.03.

     "Unit Certificate" means a certificate evidencing the rights and
obligations of the Corporation and a Holder with respect to the number of Units
specified on such certificate.

     "Unregistered Security" means any Security other than a Registered
Security.

     "Unregistered Unit" means any Unit other than a Registered Unit.

     "Unsettled Purchase Contract" means any Purchase Contract that has not been
redeemed or with respect to which settlement has not occurred pursuant to
Article Four.

                                       8
<PAGE>

                                    ARTICLE 2
                                      UNITS

     SECTION 2.01. Forms Generally. The Units of each series shall be
substantially in the form of Exhibit A or in such form (not inconsistent with
this Agreement) as shall be established by or pursuant to one or more Board
Resolutions (as set forth in a Board Resolution or, to the extent established
pursuant to rather than set forth in a Board Resolution, an Officers'
Certificate detailing such establishment). The Unit Certificates may have
imprinted or otherwise reproduced thereon such letters, numbers or other marks
of identification or designation and such legends or endorsements as the
officers of the Corporation executing the Securities constituting a part thereof
may approve (execution thereof to be conclusive evidence of such approval) and
that are not inconsistent with the provisions of this Agreement, or as may be
required to comply with any law or with any rule or regulation made pursuant
thereto, or with any rule or regulation of any self-regulatory organization (an
"SRO") on which the Units of such series may be listed or quoted or of any
securities depository or to conform to general usage.

     The Unit Certificates shall be printed, lithographed or engraved on steel
engraved borders or may be produced in any other manner, all as determined by
the officers executing such Unit Certificates, as evidenced by their execution
of the Securities constituting a part of the Units evidenced by such Unit
Certificates.

     SECTION 2.02. Form of Certificate of Authentication and Countersignature.
The form of the Trustee's certificate of authentication of any Debt Securities
and the form of the Agent's execution on behalf of the Holder and
countersignature of any Purchase Contracts, each constituting a part of the
Units of any series, shall be substantially in such form as set forth in the
Indenture or this Agreement, as applicable.

     SECTION 2.03. Amount Unlimited; Issuable in Series. (a) The aggregate
number of Units that may be authenticated, countersigned and delivered under
this Agreement is unlimited.

     The Units may be issued in one or more series. There shall be established,
upon the order of the Corporation (contained in an Issuer Order) or pursuant to
such procedures acceptable to the Agent as may be specified from time to time by
an Issuer Order, prior to the initial issuance of Units of any series:

          (i) the designation of the Units of the series, which shall
     distinguish the Units of the series from the Units of all other series;

          (ii) any limit upon the aggregate number of Units of the series that
     may be authenticated and delivered under this Agreement (except for Units
     authenticated and delivered upon registration of transfer of, or in
     exchange for, or in lieu of, other Units of the series pursuant to Section
     2.07, 2.08, 2.09 or 2.12);

                                       9
<PAGE>

          (iii) the designation of the Securities constituting a part of the
     Units of the series;

          (iv) whether and on what terms any Securities constituting a part of
     the Units of the series may be separated from the Units of the series and
     the other Securities constituting a part of such Units;

          (v) in the case of Units of a series consisting in any part of
     Purchase Contracts, the information specified pursuant to Section 3.02;

          (vi) whether the Units of the series will be issuable as Registered
     Units (and if so, whether such Units will be issuable in global form) or
     Unregistered Units (and if so, whether such Units will be issuable in
     global form), or any combination of the foregoing, any restrictions
     applicable to the offer, sale or delivery of Unregistered Securities and,
     if other than as provided in Section 2.08, the terms upon which
     Unregistered Units of any series may be exchanged for Registered Units of
     such series and vice versa;

          (vii) in the case of Units issued as Registered Units consisting of
     Registered Securities that may not be separated from the other Registered
     Securities constituting a part of such Units, the designation of the
     Security Register to be used to determine the Holder of such Units:

          (viii) if the units of such series are to be issuable in definitive
     form (whether upon original issue or upon exchange of a temporary Unit of
     such series) only upon receipt of certain certificates or other documents
     or satisfaction of other conditions, the form and terms of such
     certificates, documents or conditions;

          (ix) any trustees, depositaries, authenticating or paying agents,
     transfer agents or registrars or any other agents with respect to the Units
     of such series;

          (x) any other events of default or covenants with respect to the Units
     of such series; and

          (xi) any other terms of the series (which terms shall not be
     inconsistent with the provisions of this Agreement).

     All Units of any one series shall be substantially identical, except as may
otherwise be provided by or pursuant to the Issuer Order or procedures referred
to above. All Units of any one series need not be issued at the same time and
may be issued from time to time, consistent with the terms of this Agreement, if
so provided by or pursuant to such Board Resolution or such Issuer Order.

                                       10
<PAGE>

     SECTION 2.04. Denominations. Units of any series shall be issuable only in
denominations of a single Unit and any integral multiple thereof.

     SECTION 2.05. Rights and Obligations Evidenced by the Units. Units of any
series shall evidence the ownership by the Holder thereof of (a) the principal
amount of Debt Securities, if any, specified on the face of a Unit Certificate
representing Definitive Units or in Schedule A attached to any Unit Certificate
representing Global Units and (b) the rights and obligations of the Corporation
and the Holder under the number of Purchase Contracts, if any, specified on the
face of a Unit Certificate representing Definitive Units or in Schedule A
attached to any Unit Certificate representing Global Units.

     SECTION 2.06. Execution, Authentication, Delivery and Dating. Upon the
execution and delivery of this Agreement, and at any time and from time to time
thereafter, the Corporation may deliver, subject to any limitation on the
aggregate principal amount of Debt Securities, if any, or the Purchase
Contracts, if any, represented thereby, an unlimited number of Unit Certificates
(including the Securities executed by the Corporation constituting the Units
evidenced by such Unit Certificates) to the Trustee and/or the Agent for
authentication, countersignature or execution, as the case may be, of the
Securities comprised by such Units, together with its Issuer Orders for
authentication, countersignature or execution of such Securities, and the
Trustee in accordance with the Indenture and the Issuer Order of the Corporation
shall authenticate the Debt Securities, if any, constituting a part of the Units
evidenced by such Unit Certificates and the Agent in accordance with this
Agreement and the Issuer Order of the Corporation shall countersign and execute
on behalf of the Holders thereof the Purchase Contracts, if any, constituting a
part of the Units evidenced by such Unit Certificates, and each shall deliver
such Unit Certificates upon the order of the Corporation.

     Any Debt Securities constituting a part of the Units of any series shall be
executed on behalf of the Corporation in accordance with the terms of the
Indenture. Any Purchase Contracts constituting a part of the Units shall be
executed on behalf of the Corporation in accordance with Section 3.01.

     SECTION 2.07. Temporary Unit Certificates. Pending the preparation of Unit
Certificates for any series, the Corporation may execute and deliver to the
Trustee and/or the Agent, as appropriate, and the Trustee and/or the Agent, as
appropriate, shall authenticate, countersign, execute on behalf of the Holder
and deliver, as appropriate, in lieu of such Unit Certificates, temporary Unit
Certificates for such series. Temporary Unit Certificates shall be in
substantially the form of the Unit Certificates of such series, but with such
omissions, insertions and variations as may be appropriate for temporary Unit
Certificates, all as may be determined by the Corporation with the concurrence
of the Trustee and/or Agent, as appropriate, as evidenced by the execution and
authentication and/or countersignature of the Securities constituting a part of
the Units evidenced thereby, as applicable.

                                       11
<PAGE>

     If temporary Unit Certificates for any series are issued, the Corporation
will cause definitive Unit Certificates for such series to be prepared without
unreasonable delay. After the preparation of such definitive Unit Certificates,
the temporary Unit Certificates shall be exchangeable therefor upon surrender of
temporary Registered Units of such series at the Corporate Trust Office, at the
expense of the Corporation and without charge to any Holder and, in the case of
Unregistered Units, at any agency maintained for such purpose as specified
pursuant to Section 2.03. Upon surrender for cancellation of any one or more
temporary Unit Certificates, the Corporation shall execute and deliver to the
Trustee and/or the Agent, and the Trustee and/or the Agent shall authenticate,
countersign, execute on behalf of the Holder and deliver, as appropriate, in
exchange therefor definitive Unit Certificates of the same series of like tenor,
of authorized denominations and evidencing a like number of Units as the
temporary Unit Certificate or Certificates so surrendered. Until so exchanged,
the temporary Unit Certificates of any series shall in all respects evidence the
same benefits and the same obligations under any Debt Securities and Purchase
Contracts constituting parts of such Units, the Indenture and this Agreement as
definitive Unit Certificates of such series, unless otherwise specified pursuant
to Section 2.03.

     SECTION 2.08. Registration of Transfer and Exchange; Global Units. The
Agent shall keep at its Corporate Trust Office for each series of Registered
Units a register (the register maintained in such office being herein referred
to as the "Purchase Contract Register") in which, subject to such reasonable
regulations as it may prescribe, the Agent shall provide for the registration of
Registered Purchase Contracts, if any, constituting a part of such series and of
transfers of such Purchase Contracts (the Agent, in such capacity, the "Purchase
Contract Registrar").

     At the option of the Holder thereof, Registered Units of any series (other
than a global Registered Unit, except as set forth below) may be transferred or
exchanged for a Registered Unit or Registered Units of such series having
authorized denominations evidencing the number of Units transferred or
exchanged, upon surrender of such Registered Units to be so transferred or
exchanged at the Corporate Trust Office of the Agent upon payment, if the
Corporation shall so require, of the charges hereinafter provided. If the Units
of any series are issued in both registered and unregistered form, except as
otherwise specified pursuant to Section 2.03, at the option of the Holder
thereof, Unregistered Units of such series may be exchanged for Registered Units
of such series having authorized denominations and evidencing the number of
Units transferred or exchanged, upon surrender of such Unregistered Units to be
so transferred or exchanged at the Corporate Trust Office of the Agent and upon
payment, if the Corporation shall so require, of the charges hereinafter
provided. At the option of the Holder thereof, if Unregistered Units of any
series are issued in more than one authorized denomination, except as otherwise
specified pursuant to Section 2.03, such Unregistered Units may be exchanged for
Unregistered Units of such series having authorized denominations evidencing the
number of Units exchanged, upon surrender of such Unregistered Units to be so
exchanged at the Corporate Trust Office of the Agent or as specified pursuant to
Section 2.03, and upon payment, if the Corporation shall so require, of the
charges hereinafter provided. Unless otherwise specified pursuant to Section
2.03, Registered Units of any series may not be exchanged for Unregistered Units
of such series.

                                       12
<PAGE>

Whenever any units are so surrendered for transfer or exchange, the Corporation
shall execute, and the Trustee and/or the Agent, as appropriate, shall
authenticate, countersign or execute, as the case may be, and deliver the Units
which the Holder making the transfer or exchange is entitled to receive. All
Units (including the Securities constituting part of such Units) surrendered
upon any exchange or transfer provided for in this Agreement shall be promptly
cancelled and disposed of by the Agent and the Agent will deliver a certificate
of disposition thereof to the Corporation and to the Trustee as applicable.

     Unregistered Units shall be transferable by delivery.

     Subject to Section 2.12, if the Corporation shall establish pursuant to
Section 2.03 that the Units of a series are to be evidenced by one or more
Global Units, then the Corporation shall execute and the Agent and Trustee
shall, in accordance with this Section and Section 2.06, countersign,
authenticate and execute, as appropriate, and deliver one or more global Unit
Certificates that (i) shall evidence all or a portion of the Units of such
series issued in such form and not yet cancelled, (ii) in the case of Registered
Units, shall be registered in the name of the Depositary for such Units or the
nominee of such Depositary, (iii) shall be delivered by the Agent to the
Depositary for such Units or pursuant to such Depositary's instructions and (iv)
in the case of Registered Units, shall bear a legend substantially to the
following effect: "Unless and until it is exchanged in whole or in part for
Units in definitive registered form, this Unit Certificate may not be
transferred except as a whole by the Depositary to the nominee of the Depositary
or by a nominee of the Depositary to the Depositary or another nominee of the
Depositary or by the Depositary or any such nominee to a successor Depositary or
a nominee of such successor Depositary." Whenever Global Units of any series are
exchanged for Definitive Units of such series or whenever Definitive Units of
any series are exchanged for Global Units of such series, the Agent shall cause,
as applicable: (i) Schedule A of the Global Debt Security, if any, to be
endorsed to reflect any increase or decrease, as the case may be, in the
principal amount of Debt Securities, if any, that are comprised by Global Units
as a result of such exchange and (ii) Schedule A of the Global Purchase
Contract, if any, to be endorsed to reflect any increase or decrease, as the
case may be, in the number of Purchase Contracts, if any, that are comprised by
Global Units as a result of such exchange, whereupon such number of Global Units
shall be decreased or increased for all purposes by the number so exchanged, as
noted.

     All Unit Certificates authenticated, countersigned and executed upon any
registration of transfer or exchange of a Unit Certificate shall evidence the
ownership of the principal amount of Debt Securities, if any, specified on the
face thereof and the rights and obligations of the Holder and the Corporation
under the number of Purchase Contracts, if any, specified on the face thereof
and shall be entitled to the same benefits, and be subject to the same
obligations, under the Indenture and this Agreement as the Units evidenced by
the Unit Certificate surrendered upon such registration of transfer or exchange.

     Every Unit Certificate presented or surrendered for registration of
transfer or for exchange shall (if so required by the Corporation or the Agent)
be duly endorsed, or be

                                       13
<PAGE>

accompanied by a written instrument of transfer in form satisfactory to the
Corporation and the Agent, duly executed by the Holder thereof or his attorney
duly authorized in writing.

     No service charge shall be made for any transfer or exchange of a Unit, but
the Corporation and the Agent may require payment from the Holder of a sum
sufficient to cover any tax or other governmental charge that may be imposed in
connection with any registration of transfer or exchange of Units, other than
any exchanges pursuant to Section 2.09 not involving any transfer.

     Notwithstanding the foregoing, and subject to Section 2.8 of the Indenture,
the Corporation shall not be obligated to execute and deliver to the Trustee or
the Agent, and neither the Trustee, under the terms of the Indenture, or the
Agent hereunder shall be obligated to authenticate, countersign or execute on
behalf of the Holder any Unit Certificate presented or surrendered for
registration of transfer or for exchange of any Debt Securities or Purchase
Contracts evidenced thereby or any Unit Certificate evidencing a Definitive Unit
to be issued in exchange for interests in Global Units or to reflect any
increase or decrease in a Global Unit, Global Debt Security or Global Purchase
Contract (i) during the period beginning any time on or after the opening of
business 15 days before the day of mailing of a notice of redemption or of any
other exercise of any right held by the Corporation with respect to the Unit (or
any Security constituting a part of the Units of such series) and ending at the
close of business on the day of the giving of such notice, (ii) that evidences
or would evidence any such Unit or Security selected or called for redemption or
with respect to which such right has been exercised or (iii) at any given date,
if such date is on or after any date that is after the Settlement Date or the
date of redemption, as applicable, with respect to the Purchase Contracts, if
any, evidenced or to be evidenced by such Unit Certificate, except with respect
to any Registered Debt Securities or portions thereof that remain or will remain
Outstanding following such Settlement Date or date of redemption or (iv) at any
other date specified pursuant to Section 2.03.

     SECTION 2.09. Mutilated, Destroyed, Lost and Stolen Unit Certificates. If
any mutilated Unit Certificate is surrendered to the Agent, the Corporation
shall execute and deliver to the Trustee and/or the Agent, as appropriate, and
the Trustee and/or the Agent shall authenticate, countersign, execute on behalf
of the Holder and deliver, as appropriate, in exchange therefor new Securities
comprised by Units of the same series, of like tenor, and evidenced by a new
Unit Certificate evidencing the same number of Units and bearing a number not
contemporaneously outstanding.

     If there shall be delivered to the Corporation and the Trustee and/or the
Agent, as appropriate, (i) evidence to their satisfaction of the destruction,
loss or theft of any Unit Certificate and (ii) such security or indemnity as may
be required by them to hold each of them and any agent of any of them harmless,
then, in the absence of notice to the Corporation and the Trustee and/or the
Agent, as appropriate, that such Unit Certificate has been acquired by a bona
fide purchaser, the Corporation shall execute and deliver to the Trustee and/or
the Agent, as appropriate, and the Trustee (in accordance with the provisions of
the Indenture) and/or the Agent (in accordance with the provisions hereof) shall

                                       14
<PAGE>

authenticate, countersign, execute on behalf of the Holder and deliver to the
Holder, as appropriate, in lieu of any such destroyed, lost or stolen Unit
Certificate, new Securities comprised by Units of the same series, of like
tenor, and evidenced by a new Unit Certificate evidencing the same number of
Units and bearing a number not contemporaneously outstanding.

     Unless otherwise specified pursuant to Section 2.03, notwithstanding the
foregoing, the Corporation shall not be obligated to execute and deliver to the
Trustee or the Agent, and neither the Trustee (under the Indenture), or the
Agent shall be obligated to authenticate, countersign or execute on behalf of
the Holder, or deliver to the Holder, a new Unit Certificate (or any Security
constituting a part of such Unit) (i) during the period beginning any time on or
after the opening of business 15 days before the day of mailing of a notice of
redemption or of any other exercise of any right held by the Corporation with
respect to the Unit (or any Security constituting a part of such Unit) and
ending at the close of business on the day of the giving of such notice, (ii)
that evidences any Unit or Purchase Contracts selected or called for redemption
or with respect to which such right has been exercised, (iii) at any given date,
if such date is on or after the Settlement Date or date of redemption, as
applicable, with respect to any Purchase Contracts evidenced by such Unit
Certificate, except with respect to any Registered Debt Security or portion
thereof evidenced by such Unit Certificate that remains or will remain
Outstanding following such Settlement Date or date of redemption or (iv) at any
other date specified pursuant to Section 2.03. In lieu of delivery of a new Unit
Certificate, upon satisfaction of the applicable conditions specified in clauses
(i) and (ii) of the preceding paragraph, the Agent shall deliver or cause to be
delivered on the applicable Settlement Date or redemption date (i) in respect of
Purchase Contracts or Debt Securities constituting a part of the Units evidenced
by such Unit Certificate that are selected or called for redemption, the
redemption price of such Purchase Contracts or Debt Securities or (ii) in
respect of Purchase Contracts constituting a part of the Units evidenced by such
Unit Certificate with respect to which a Cash Settlement or Debt Security
Settlement (or any equivalent manner of settlement) has taken place, (x) the
Purchase Contract Property (or cash value thereof), purchase price, cash
settlement value, Settlement Amount or other amount, as the case may be,
deliverable with respect to such Purchase Contracts (and, in the case of an
effective Cash Settlement (or any equivalent manner of settlement), the related
Debt Securities) or (y) if a Purchase Contract Default has occurred by virtue of
the Corporation's having failed to deliver the Purchase Contract Property (or
cash value thereof), purchase price, cash settlement value, Settlement Amount or
other amount, as the case may be, deliverable against tender by the Agent of the
purchase price, Purchase Contract Property (or the cash value thereof) or other
Settlement Amount or other amount, as the case may be, such purchase price,
Purchase Contract Property (or cash value thereof) or Settlement Amount or other
amount, if any, received by the Agent from the Holder in respect of the
Settlement of such Purchase Contracts or in respect of principal with respect to
the related Debt Securities received by the Agent.

     Upon the issuance of any new Unit Certificate under this Section, the
Corporation and the Agent may require the payment of a sum sufficient to cover
any tax or

                                       15
<PAGE>

other governmental charge that may be imposed in relation thereto and any other
expenses (including the fees and expenses of the Agent) connected therewith.

     Every new Unit Certificate executed pursuant to this Section in lieu of any
destroyed, lost or stolen Unit Certificate shall constitute an original
additional contractual obligation of the Corporation and of the Holder (with
respect to any Purchase Contracts constituting a part of the Units evidenced
thereby), whether or not the destroyed, lost or stolen Unit Certificate (and the
Securities evidenced thereby) shall be at any time enforceable by anyone, and
shall be entitled to all the benefits of this Agreement equally and
proportionately with any and all other Unit Certificates delivered hereunder.

     The provisions of this Section are exclusive and shall preclude (to the
extent lawful) all other rights and remedies with respect to the replacement or
payment of mutilated, destroyed, lost or stolen Unit Certificates.

     SECTION 2.10. Persons Deemed Owners. Prior to due presentment of a Unit
Certificate of any series for registration of transfer, the Corporation, the
Trustee, the Collateral Agent and the Agent, as appropriate, and any agent of
the Corporation, the Trustee, the Collateral Agent or the Agent, as appropriate,
may treat the Person in whose name any Registered Security evidenced by such
Unit Certificate is registered and, with respect to any Unregistered Security
constituting a part of the Units evidenced by such Unit Certificate, the bearer
thereof, as the owner of the Units evidenced thereby for all purposes
whatsoever, whether or not payment with respect to any Security constituting a
part of the Units evidenced thereby shall be overdue and notwithstanding any
notice to the contrary. None of the Corporation, the Trustee, the Agent, the
Collateral Agent or any agent of the Corporation, the Trustee, the Collateral
Agent or the Agent shall be affected by notice to the contrary.

     SECTION 2.11. Cancellation. Subject to Section 3.07, all Unit Certificates
surrendered for payment, and all Unit Certificates surrendered for redemption of
any Debt Securities or Purchase Contracts evidenced thereby, termination or
settlement of any Purchase Contracts evidenced thereby, delivery of Purchase
Contract Property or registration of transfer or exchange shall, if surrendered
to any Person other than the Trustee or the Agent, as appropriate, be delivered
to the Trustee and/or the Agent, as appropriate, and, if not already cancelled,
any Debt Securities or Purchase Contracts evidenced by such Units shall be
promptly cancelled by the Trustee and/or the Agent, as appropriate. The
Corporation may at any time deliver to the Trustee and/or the Agent, as
appropriate, for cancellation any Unit Certificates previously authenticated,
countersigned, executed and delivered hereunder under the Indenture, which the
Corporation may have acquired in any manner whatsoever, and all Unit
Certificates so delivered shall, upon Issuer Order of the Corporation, be
promptly cancelled by the Trustee and/or the Agent, as appropriate. No Unit
Certificates shall be authenticated, countersigned and executed in lieu of or in
exchange for any Unit Certificates cancelled as provided in this Section, except
as permitted by this Agreement. All cancelled Unit Certificates held by the
Agent shall be disposed of in accordance with its customary procedures and a
certificate of their disposition shall be delivered by the Agent to the

                                       16
<PAGE>

Corporation, unless by Issuer Order the Corporation shall direct that cancelled
Unit Certificates be returned to it.

     If the Corporation or any Affiliate of the Corporation shall acquire any
Unit Certificate, such acquisition shall not operate as a cancellation of such
Unit Certificate unless and until such Unit Certificate is delivered to the
Trustee and/or the Agent, as appropriate, for the purpose of cancellation.

     SECTION 2.12. Exchange of Global Units and Definitive Units. In the case of
Registered Units, Holders of Global Units of any series shall receive Definitive
Units of such series in exchange for interests in such Global Units if DTC
notifies the Corporation that it is unwilling or unable to continue as
Depositary with respect to the Global Units of such series or if at any time it
ceases to be a clearing agency under the Exchange Act, and a successor
Depositary registered as a clearing agency under the Exchange Act is not
appointed by the Corporation within 90 days after receipt of such notice or
after it becomes aware that DTC has ceased to be such a clearing agency.

     If so provided pursuant to Section 2.03, interests in such Global Units may
also be transferred or exchanged for Definitive Units upon the request of the
Depositary to the Trustee and/or the Agent, as appropriate, to authenticate,
countersign and execute, as the case may be, Unit Certificates representing
Definitive Units (such request being referred to herein as an "Optional
Definitive Unit Request").

     Definitive Units exchanged for interests in Global Units pursuant to this
Section 2.12 shall be denominated in the amounts and registered in the name of
such Person or Persons as the Depositary shall instruct the Agent and the
Trustee, as appropriate.

     Whenever Global Units are exchanged for Definitive Units, the Agent shall
cause Schedule A of the Global Unit to be endorsed to reflect any decrease in
the Global Units as a result of such exchange, whereupon the Global Unit
Certificate or Certificates shall be canceled and disposed of in accordance with
Section 2.11.

     If so specified pursuant to Section 2.03, Holders of Definitive Units may
transfer or exchange such Definitive Units for interests in Global Units by
depositing the Unit Certificates evidencing such Definitive Units with the Agent
and requesting the Agent, and the Trustee, as appropriate, to effect such
exchange. The Agent shall notify the Depositary of any such exchange and, upon
delivery to the Agent and the Trustee, as appropriate, of the Unit Certificates
evidencing the Definitive Units to be so transferred or exchanged, the Agent
shall take all actions required with respect to any Global Securities evidenced
by such Global Units and Unit Certificates evidencing the remaining Definitive
Units, if any, will be issued in accordance with Section 2.08.

                                       17
<PAGE>

                                    ARTICLE 3
                             THE PURCHASE CONTRACTS

     SECTION 3.01. Form and Execution of Purchase Contracts; Temporary Purchase
Contracts. (a) Purchase Contracts of each series shall be substantially in the
forms attached as Exhibit A, as appropriate, or in such form (not inconsistent
with this Agreement) as shall be established by or pursuant to one or more Board
Resolutions (as set forth in a Board Resolution or, to the extent established
pursuant to rather than set forth in a Board Resolution, an Officers'
Certificate detailing such establishment, in each case, which may be included in
any Board Resolution or Officers' Certificate made pursuant to this Agreement)
or in one or more agreements supplemental hereto, in each case with such
appropriate insertions, omissions, substitutions and other variations as are
required or permitted by this Agreement. The Purchase Contracts may have
imprinted or otherwise reproduced thereon such letters, numbers or other marks
of identification or designation and such legends or endorsements as the
officers of the Corporation executing the same may approve (execution thereof to
be conclusive evidence of such approval) and that are not inconsistent with the
provisions of this Agreement, or as may be required to comply with any law or
with any rule or regulation made pursuant thereto, or with any rule or
regulation of any SRO on which the Purchase Contracts of such series may be
listed or quoted, or of any securities depository, or to conform to general
usage. Purchase Contracts shall be signed on behalf of the Corporation by the
chairman or vice chairman of the Board of Directors, the president, a vice
president, the treasurer or an assistant treasurer the Corporation or such other
person specifically designated by the Board of Directors or the Executive
Committee thereof to execute Purchase Contracts, which signature may or may not
be attested by the secretary or an assistant secretary of the Corporation. The
signature of any of such officers may be either manual or facsimile.
Typographical and other minor errors or defects in any such signature shall not
affect the validity or enforceability of any Purchase Contract that has been
duly countersigned and delivered by the Agent.

     (b) In case any officer of the Corporation who shall have signed a
Purchase Contract, either manually or by facsimile signature, shall cease to be
such officer before such Purchase Contract shall have been countersigned and
delivered by the Agent to the Corporation or delivered by the Corporation, such
Purchase Contract nevertheless may be countersigned and delivered as though the
person who signed such Purchase Contract had not ceased to be such officer of
the Corporation; and a Purchase Contract may be signed on behalf of the
Corporation by any person who, at the actual date of the execution of such
Purchase Contract, shall be a proper officer of the Corporation to sign such
Purchase Contract, although at the date of the execution of this Agreement any
such person was not such officer.

     (c) Pending the preparation of final Purchase Contracts of any series,
the Corporation may execute and the Agent shall countersign and deliver
temporary Purchase Contracts (printed, lithographed, typewritten or otherwise
produced, in each case in form satisfactory to the Agent). Such temporary
Purchase Contracts shall be issuable substantially in the form of the final
Purchase Contracts but with such omissions, insertions and variations

                                       18
<PAGE>

as may be appropriate for temporary Purchase Contracts, all as may be determined
by the Corporation with the concurrence of the Agent. Such temporary Purchase
Contracts may contain such reference to any provisions of this Agreement as may
be appropriate. Every such temporary Purchase Contract shall be executed by the
Corporation and shall be countersigned by the Agent upon the same conditions and
in substantially the same manner, and with like effect, as the final Purchase
Contracts. Without unreasonable delay, the Corporation shall execute and shall
furnish final Purchase Contracts and thereupon such temporary Purchase Contracts
may be surrendered in exchange therefor without charge, and the Agent shall
countersign and deliver in exchange for such temporary Purchase Contracts final
Purchase Contracts evidencing a like aggregate number of Purchase Contracts of
the same series and of like tenor as those evidenced by such temporary Purchase
Contracts. Until so exchanged, such temporary Purchase Contracts shall be
entitled to the same benefits under this Agreement as final Purchase Contracts.

     SECTION 3.02. Number Unlimited Issuable in Series. (a) The aggregate number
of Purchase Contracts that may be delivered under this Agreement is unlimited.

     (b) The Purchase Contracts may be issued in one or more series. There shall
be established in or pursuant to one or more Board Resolutions (and to the
extent established pursuant to rather than set forth in a Board Resolution, in
an Officers' Certificate detailing such establishment) or established in one or
more agreements supplemental hereto, prior to the initial issuance of Purchase
Contracts of any series:

          (i) the designation of the Purchase Contracts of the series, which
     shall distinguish the Purchase Contracts of the series from the Purchase
     Contracts of all other series;

          (ii) any limit upon the aggregate number of the Purchase Contracts of
     the series that may be countersigned and delivered under this Agreement
     (except for Purchase Contracts countersigned and delivered upon
     registration of transfer of, or in exchange for, or in lieu of, other
     Purchase Contracts of the series);

          (iii) the specific property (the "Purchase Contract Property") used to
     determine the amount payable upon settlement of the Purchase Contracts of
     the series, and the amount of such property (or the method for determining
     the same);

          (iv) whether the Purchase Contracts of the series provide for the
     purchase by the Corporation and the sale by the Holder or the sale by the
     Corporation and the purchase by the Holder of the Purchase Contract
     Property;

          (v) in the case of Purchase Contracts that obligate the Corporation to
     sell, and the Holder to purchase, Purchase Contract Property, the Purchase
     Price at which and, if other than U.S. Dollars, the coin or currency with
     which the Purchase Contract Property is to be purchased by the Holder upon

                                       19
<PAGE>

     settlement of the Purchase Contracts of the series (or the method for
     determining the same) and whether the Purchase Price for such Purchase
     Contracts may be paid in cash or by the exchange of any other security of
     the Corporation, or both, or otherwise;

          (vi) in the case of Purchase Contracts that obligate the Corporation
     to purchase, and the Holders to sell, Purchase Contract Property, the
     Settlement Amount for the Purchase Contracts of the series (or the method
     for determining the same) and, if other than U.S. Dollars, the coin or
     currency in which such Settlement Amount is to be paid;

          (vii) whether the settlement of the Purchase Contracts of the series
     is to be in cash or by delivery of the Purchase Contract Property, or
     otherwise, and the method of settlement of the Purchase Contracts of the
     series;

          (viii) the specific date or dates on which the Purchase Contracts will
     be settled, whether the settlement may be accelerated by the Corporation or
     the Holders thereof and, if so, the initial accelerated settlement date,
     the minimum number of Purchase Contracts that may be accelerated and the
     minimum number of Purchase Contracts greater than zero that must remain
     Outstanding immediately following such acceleration;

          (ix) whether the Purchase Contracts of the series will be in
     registered form ("Registered Purchase Contracts") or bearer form ("Bearer
     Purchase Contracts") or both;

          (x) whether any Purchase Contracts of the series will be issued in
     global form or definitive form or both, and whether and on what terms (if
     different from those set forth herein) Purchase Contracts in one form may
     be converted into or exchanged for Purchase Contracts in the other form;

          (xi) any agents, depositaries, authenticating or paying agents,
     transfer agents or registrars or any determination or calculation agents or
     other agents with respect to Purchase Contracts of the series;

          (xii) whether and on what terms the Purchase Contracts of the series
     may be separated from the other components of the Units of which the
     Purchase Contracts are a component;

          (xiii) whether the Purchase Contracts of such series will be subject
     to redemption by the Corporation and, if so, the initial redemption date,
     the minimum number of Purchase Contracts that may be redeemed and the
     minimum number of Purchase Contracts greater than zero that must remain
     Outstanding immediately following such redemption; and

                                       20
<PAGE>

          (xiv) any other terms of the Purchase Contracts of the series (which
     terms shall not be inconsistent with the provisions of this Agreement).

     (c) All Purchase Contracts of any one series shall be substantially
identical, except as may otherwise be provided by or pursuant to the Board
Resolution or Officers' Certificate referred to above or as set forth in any
such agreement supplemental hereto. All Purchase Contracts of any one series
need not be issued at the same time and may be issued from time to time,
consistent with the terms of this Agreement, if so provided by or pursuant to
such Board Resolution, such Officers' Certificate or in any such agreement
supplemental hereto.

     SECTION 3.03. Countersignature, Execution on Behalf of Holder and Delivery
of Purchase Contracts. (a) The Corporation may deliver Purchase Contracts of any
series executed by the Corporation to the Agent for countersignature and
execution on behalf of the Holders, together with the applicable documents
referred to below in this Section, and the Agent shall thereupon countersign,
execute on behalf of the Holders and deliver such Purchase Contracts to or upon
the order of the Corporation (contained in the Issuer Order referred to below in
this Section) or pursuant to such procedures acceptable to the Agent as may be
specified from time to time by an Issuer Order. If provided for in such
procedures, such Issuer order may authorize countersignature, execution on
behalf of the Holders and delivery pursuant to oral instructions from the
Corporation or its duly authorized agent, which instructions shall be promptly
confirmed in writing. In countersigning such Purchase Contracts, executing such
Purchase Contracts on behalf of the Holders and accepting the responsibilities
under this Agreement in relation to the Purchase Contracts, the Agent shall be
entitled to receive (in the case of subparagraphs (ii), (iii) and (iv) below
only at or before the time of the first request of the Corporation to the Agent
to countersign and execute on behalf of the Holders Purchase Contracts in a
particular form) and shall be fully protected in relying upon, unless and until
such documents have been superseded or revoked:

          (i) an Issuer Order requesting such countersignature and execution and
     setting forth delivery instructions if the Purchase Contracts are not to be
     delivered to the Corporation;

          (ii) any Board Resolution, Officers' Certificate and/or executed
     supplemental agreement pursuant to which the forms and terms of the
     Purchase Contracts were established;

          (iii) an Officers' Certificate setting forth the forms and terms of
     the Purchase Contracts, stating that the form or forms and terms of such
     Purchase Contracts have been established pursuant to Sections 3.01 and 3.02
     and comply with this Agreement, and covering such other matters as the
     Agent may reasonably request; and

          (iv) at the option of the Corporation, either an Opinion of Counsel or
     a letter addressed to the Agent permitting it to rely on an Opinion of
     Counsel, substantially to the effect that:

                                       21
<PAGE>

               (A) the forms of the Purchase Contracts have been duly authorized
          and established in conformity with the provisions of this Agreement;

               (B) the terms of the Purchase Contracts have been duly authorized
          and established in conformity with the provisions of this Agreement
          and certain terms of the Purchase Contracts have been established
          pursuant to a Board Resolution, an Officers' Certificate or a
          supplemental agreement in accordance with this Agreement, and when
          such other terms as are to be established pursuant to procedures set
          forth in an Issuer Order shall have been established, all terms will
          have been duly authorized by the Corporation and will have been
          established in conformity with the provisions of this Agreement; and

               (C) when the Purchase Contracts have been executed by the
          Corporation and by the Agent on behalf of the Holders and
          countersigned by the Agent in accordance with the provisions of this
          Agreement and delivered to and duly paid for by the purchasers
          thereof, subject to such other conditions as may be set forth in such
          Opinion of Counsel, they will have been duly issued under this
          Agreement and will be valid and legally binding obligations of the
          Corporation, enforceable in accordance with their respective terms,
          and will be entitled to the benefits of this Agreement.

     In rendering such opinions, such counsel may qualify any opinions as to
enforceability by stating that such enforceability may be limited by bankruptcy,
insolvency, reorganization, liquidation, moratorium and other similar laws
affecting the rights and remedies of creditors and is subject to general
principles of equity (regardless of whether such enforceability is considered in
a proceeding in equity or at law). Such counsel may rely upon opinions of other
counsel (copies of which shall be delivered to the Agent), who shall be counsel
reasonably satisfactory to the Agent, in which case the opinion shall state that
such counsel believes he and the Agent are entitled so to rely. Such counsel may
also state that, insofar as such opinion involves factual matters, he has
relied, to the extent he deems proper, upon certificates of officers of the
Corporation and its subsidiaries and certificates of public officials.

     (b) The Agent shall have the right to decline to countersign, execute on
behalf of the Holders and deliver any Purchase Contract under this Section if
the Agent, being advised by counsel, determines that such action may not
lawfully be taken by the Corporation or if the Agent in good faith by its board
of directors or board of trustees determines that such action would expose the
Agent to personal liability to existing registered or beneficial holders of
Purchase Contracts or would affect the Agent's own rights, duties or immunities
under the Purchase Contracts, this Agreement or otherwise.

                                       22
<PAGE>

     (c) If the Corporation shall establish pursuant to Section 3.02 that the
Purchase Contracts of a series are to be evidenced by one or more Global
Purchase Contracts, then unless otherwise agreed between the Corporation and the
Agent the Corporation shall execute and the Agent shall, in accordance with this
Section and the Issuer Order with respect to such series, countersign, execute
on behalf of the Holders and deliver one or more Global Purchase Contracts that
(i) shall evidence all or a portion of the Purchase Contracts of such series
issued in such form and not yet cancelled, (ii) in the case of Registered
Purchase Contracts, shall be registered in the name of the Depositary for such
Purchase Contracts or the nominee of such Depositary, (iii) shall be delivered
by the Agent to such Depositary or pursuant to such Depositary's instructions
and (iv) in the case of Registered Purchase Contracts, shall bear a legend
substantially to the following effect: "Unless and until it is exchanged in
whole or in part for Purchase Contracts in definitive registered form, this
Purchase Contract may not be transferred except as a whole by the Depositary to
the nominee of the Depositary or by a nominee of the Depositary to the
Depositary or another nominee of the Depositary or by the Depositary or any such
nominee to a successor Depositary or a nominee of such successor Depositary."

     (d) If so required by applicable law, each Depositary for a series of
Registered Purchase Contracts must, at the time of its designation and at all
times while it serves as Depositary, be a clearing agency registered under the
Securities Exchange Act of 1934, as amended, and any other applicable statute or
regulation.

     (e) Each Purchase Contract shall be dated the date of its
countersignature. A Purchase Contract shall not be valid for any purpose, unless
and until such Purchase Contract has been executed by the Agent on behalf of the
Holder and countersigned by the manual signature of an authorized officer of the
Agent. Such countersignature by an authorized officer of the Agent upon any
Purchase Contract executed by the Corporation in accordance with this Agreement
shall be conclusive evidence that the Purchase Contract so countersigned has
been duly delivered and issued hereunder.

     SECTION 3.04. Further Provisions Relating to Issuance of Purchase
Contracts. Purchase Contracts may be executed by the Corporation and delivered
to the Agent upon the execution of this Agreement or from time to time
thereafter and in connection with exchanges, substitutions and transfers of
Units of any series. Subsequent to the original issuance of the Purchase
Contracts, the Agent shall, subject to the conditions set forth in this Article
and Article Two, countersign and execute on behalf of the Holder Purchase
Contracts issued in exchange or substitution for or upon transfer of Unit
Certificates evidencing one or more previously countersigned and executed
Unsettled Purchase Contracts evidenced by the Unit Certificates to be exchanged,
substituted for or transferred.

     SECTION 3.05. Purchase of Purchase Contract Property; Optional Acceleration
of Purchase Obligations; Authorization of Agent by Holder; Transferees Bound.
(a) Unless otherwise specified pursuant to Section 3.02, the Unsettled Purchase
Contracts of any series will either (i) obligate the Holders thereof to
purchase, and the

                                       23
<PAGE>

Corporation to sell or deliver the cash value of, Purchase Contract Property or
(ii) obligate the Corporation to purchase, and the Holders thereof to sell or
deliver the cash value of, Purchase Contract Property, in each case specified
pursuant to Section 3.02 (or a quantity calculated by a method specified
pursuant to Section 3.02) on the Stated Settlement Date at the Purchase Price
specified pursuant to Section 3.02.

     (b) If this Section is specified as applicable pursuant to Section
3.02, the Corporation may, subject to paragraph (c) of this Section, at its sole
option and in its sole discretion at any time or from time to time (unless
otherwise specified pursuant to Section 3.02) on not less than 30 nor more than
60 days' written notice (an "Acceleration Notice") to the Agent and the Holders,
in the manner provided in Section 11.05 and Section 11.06, respectively,
accelerate the obligations of the Holders of at least the Minimum Acceleration
Amount of Unsettled Purchase Contracts to purchase or sell, as the case may be,
and of the Corporation to sell or purchase, as the case may be, on any
Accelerated Settlement Date (provided that such Accelerated Settlement Date may
not be prior to the Initial Acceleration Date), the quantity of Purchase
Contract Property specified pursuant to Section 3.02 for each Unsettled Purchase
Contract subject to such acceleration; provided that no such acceleration with
respect to fewer than all Unsettled Purchase Contracts shall (unless otherwise
specified pursuant to Section 3.02) result in fewer than the Minimum Remaining
Amount of Unsettled Purchase Contracts remaining Outstanding after such
Accelerated Settlement Date; and provided further that the Corporation shall
have the right, in its sole discretion, on or before the 10th day prior to such
Accelerated Settlement Date, to rescind any Acceleration Notice by written
notice to the Agent and written notice to the Holders pursuant to Sections 11.05
and 11.06 (whereupon all rights and obligations of the Corporation and the
Holders that would have arisen as a result of such Acceleration Notice shall be
of no force and effect), without prejudice to the rights of the Corporation,
including without limitation its rights to deliver an Acceleration Notice in the
future. If fewer than all Unsettled Purchase Contracts of such series are to be
accelerated to a particular Accelerated Settlement Date, the Agent shall select
from among the Unsettled Purchase Contracts such number thereof as are being
accelerated on a pro rata basis, by lot or by such other means reasonably
acceptable to the Agent, with appropriate adjustment being made to prevent the
fractional acceleration of the settlement of Purchase Contracts, such that the
settlement of Purchase Contracts are accelerated only in whole and not in part.

     (c) Each Holder of a Unit, by his acceptance thereof, authorizes and
directs the Agent to enter into, deliver and perform any Purchase Contracts that
are part of such Unit on his behalf, agrees to be bound by the terms and
provisions thereof, covenants and agrees to perform its obligations under the
Purchase Contracts evidenced by such Unit, and consents and agrees to the
provisions hereof. If the provisions of Section 3.06 are applicable to the Units
of any series, each Holder of a Unit of such series, by his acceptance thereof,
further covenants and agrees that, to the extent such Holder is deemed to have
elected to satisfy its obligations under any Purchase Contracts that are part of
such Unit by effecting a Debt Security Settlement as provided in Section 3.06,
and subject to the terms thereof, redemption payments with respect to principal
of any Debt Securities that are part of such Unit shall be

                                       24
<PAGE>

applied by the Agent in satisfaction of such Holder's obligations under such
Purchase Contract on the applicable Settlement Date.

     (d) Upon registration of transfer of a Purchase Contract of any
series, the transferee shall be bound (without the necessity of any other action
on the part of such transferee, except as may be required by the Agent pursuant
to this Article Three) under the terms of this Agreement and such Purchase
Contract, and the transferor shall be released from the obligations under the
Purchase Contract so transferred.

     (e) Each Holder of a Unit of any series, by his acceptance thereof,
authorizes the Agent to execute on his behalf any Purchase Contracts that are
part of such Unit, authorizes and directs the Agent on his behalf to take such
other action (including without limitation any actions required under Article
Five), and covenants and agrees to take such other action as may be necessary or
appropriate, or as may be required by the Agent, to effect the provisions of
this Agreement, the Units and the Purchase Contracts and appoints the Agent as
his attorney-in-fact for any and all such purposes.

     SECTION 3.06. Payment of Purchase Price. (a) Unless otherwise specified
pursuant to Section 3.02 (in the case of a Unit of any series consisting of a
Debt Security and a Purchase Contract that obligates the Corporation to sell,
and the Holder to purchase, Purchase Contract Property), the Purchase Price for
any Purchase Contract Property purchased by a Holder pursuant to such Purchase
Contract shall be payable at the Corporate Trust Office of the Agent:

          (i) at the option of the Holder of the Unit of which such Purchase
     Contract is part, after receipt by the Agent of written notice from the
     Holder not less than 10 days nor more than 20 days prior to the applicable
     Settlement Date indicating the Holder's choice of cash settlement, by
     delivery by such Holder not later than 11:00 a.m., New York City time, on
     the Business Day immediately preceding the Settlement Date of the Purchase
     Price (a "Cash Settlement"), to the Agent in immediately available funds
     payable to or upon the order of the Corporation; or

          (ii) by application of any payment received by the Agent, Collateral
     Agent, Trustee or Paying Agent with respect to the principal of any Debt
     Security included in the Unit of which such Purchase Contract constitutes a
     part, as provided in paragraph (f) of this Section (a "Debt Security
     Settlement").

     A Holder of such Units who fails to provide notice to the Agent as provided
above that it will make a Cash Settlement with respect to the settlement of a
Purchase Contract, or a Holder of such Units who provides such notice but does
not effect a Cash Settlement in accordance with the terms of this Section 3.06,
will be deemed to have elected to have the Purchase Price for the Purchase
Contract Property paid pursuant to a Debt Security Settlement.

                                       25
<PAGE>

     (b) Notwithstanding paragraph (a) of this Section, in the case of Purchase
Contracts of any series that obligate the Corporation to sell, and the Holders
to purchase, Purchase Contract Property, the Corporation shall not be entitled
to sell any Purchase Contract Property or receive any payment of the Purchase
Price therefor, if the Corporation fails to deliver such Purchase Contract
Property or the cash value thereof (if specified pursuant to Section 3.02)
against tender by the Agent of payment therefor.

     (c) Unless otherwise specified pursuant to Section 3.02, to be effective,
payment with respect to a Purchase Contract pursuant to a Cash Settlement must
be deposited with the Agent by 11:00 a.m., New York City time, on the Business
Day immediately preceding the Settlement Date and must be made with respect to
all (and not fewer than all) of the Purchase Contracts to be settled on such
Settlement Date (i) included in the Definitive Units that are registered in the
name of the Person effecting Cash Settlement in the Purchase Contract Register,
(ii) included in the Global Units that are beneficially owned by the Person
effecting Cash Settlement as specified in the records of the direct and indirect
participants of the Depositary or (iii) in the case of Purchase Contracts
included in Unregistered Definitive Units, owned by the Person effecting Cash
Settlement, and, in the case of (ii) and (iii) above, as certified in writing by
such Person, which certification shall be collected, in the case of (ii) above,
on behalf of such Person by the direct and indirect participants in the
Depositary through which such Person holds interests in the Global Units, and
which will be provided to the Agent in the case of (iii) above, by such Person
or, in the case of (ii) above, by the Depositary or any direct participant of
such Depositary, at the time payment pursuant to a Cash Settlement is deposited
with the Agent. Any attempted Cash Settlement other than in accordance with this
Section 3.06 shall be deemed to have not been made and any payments made to the
Agent or by a Holder not complying with this Section 3.06 shall be returned by
the Agent to such Holder.

     (d) The Corporation shall not be obligated to deliver any Purchase Contract
Property (or the cash value thereof) with respect to a Purchase Contract of any
series that obligates the Corporation to sell, and the Holder to purchase,
Purchase Contract Property unless it shall have received payment in full of the
applicable Purchase Price for any Purchase Contract Property to be purchased
thereunder in the manner set forth herein or in any Issuer Order relating to the
issuance of the Purchase Contracts of such series. The Corporation shall not be
obligated to pay the Purchase Price or any other Settlement Amount for any
Purchase Contract Property to be purchased by the Corporation pursuant to any
Purchase Contract that obligates the Corporation to purchase, and the Holder to
sell, Purchase Contract Property unless it shall have received such Purchase
Contract Property (or the cash value thereof) or any other Settlement Amount in
the manner set forth herein or as specified pursuant to Section 3.02.

     (e) In the case of Purchase Contracts that obligate the Corporation to
sell, and the Holders to purchase, Purchase Contract Property in each case
consisting of securities in registered form, the Agent shall cause such
securities deliverable in respect of such Purchase Contracts to be registered,
in the case of Registered Units, in the name of the Holder of such Units as set
forth in the appropriate Securities Register.

                                       26
<PAGE>

     (f) Unless a Holder of a Unit of any series has effected a Cash
Settlement in satisfaction of his obligations under any Purchase Contracts
constituting a part of such Unit that obligate the Holder, or represent the
Holder's right, to purchase Purchase Contract Property, any payment with respect
to principal of any Debt Security evidenced by such Unit that is received by the
Agent, Collateral Agent, Trustee or Paying Agent in connection with any Debt
Security Settlement shall be paid by the Agent to the Collateral Agent for
delivery to the Corporation in satisfaction of the Holder's obligations under
the Global Purchase Contract or Purchase Contracts constituting a part of such
Units. Any payment that is received by the Agent, Collateral Agent, Trustee or
Paying Agent with respect to interest on a Debt Security related to a Purchase
Contract that has been settled in accordance with Section 3.06(a)(ii) shall be
distributed to the Holders of Units upon surrender of the appropriate Unit
Certificate.

     (g) Except as otherwise specified pursuant to Section 3.02, all payments to
be made by the Holders or by the Agent, Collateral Agent, Trustee or Paying
Agent shall be made in lawful money of the United States of America, by
certified check or wire transfer in immediately available funds in accordance
with such regulations as the Agent may reasonably establish consistent with the
provisions of this Agreement.

     (h) Any payment of the applicable Purchase Price deposited by a Holder
hereunder with respect to a Purchase Contract shall be held by the Agent in
custody for the benefit of the Holder and applied in satisfaction of such
Holder's obligations under such Purchase Contract, or released and delivered to
the Holder upon the failure of the Corporation to satisfy its settlement
obligations against tender by the Agent of such payment of the applicable
Purchase Price.

     SECTION 3.07. Delivery of Purchase Contract Property or Other Amounts.
Unless otherwise specified pursuant to Section 3.02, (i) in the case of Purchase
Contracts obligating the Corporation to sell, and the Holders to purchase,
Purchase Contract Property, upon its receipt of payment in full of the Purchase
Price for the Purchase Contract Property purchased by any Holder pursuant to the
foregoing provisions of this Article, the Corporation shall cause such Purchase
Contract Property to be delivered to the Holders; and (ii) in the case of
Purchase Contracts obligating the Corporation to purchase, and the Holders to
sell, Purchase Contract Property, upon its receipt of the Purchase Contract
Property, Settlement Amount or other amount, the Corporation shall cause the
Purchase Price, Settlement Amount or other amount, as applicable, to be
delivered to the Holders, provided that in each case such delivery shall be made
only upon delivery to the Agent of the related Unit Certificate.

     Upon receipt of any Unit Certificate, the Agent shall cancel such Unit
Certificate in accordance with Section 2.11 as a result of the delivery referred
to in the preceding paragraph. If any Debt Securities relating to Closed
Purchase Contracts constituting a part of Units evidenced by such Unit
Certificate remain outstanding as a result of Cash Settlement, the Corporation
shall execute and the Trustee shall authenticate and deliver (i) in the case of
Definitive Units, to the Holder thereof, in accordance with the terms of the
Indenture, a new certificate or certificates representing solely the principal
amount of

                                       27
<PAGE>

Debt Securities still outstanding (ii) in the case of Global Units, if
a Global Debt Security not constituting part of a Global Unit has not previously
been issued by the Corporation, a second Global Debt Security representing Debt
Securities still Outstanding that are not part of Units. If a second Global Debt
Security referred to in clause (ii) of the immediately preceding sentence has
already been issued, the Agent shall note thereon an appropriate increase in the
number of Debt Securities represented by such Global Debt Security.

     SECTION 3.08. Charges and Taxes. The Corporation shall not be required to
pay any tax or taxes that may be payable with respect to any exchange of or
substitution for a Unit Certificate or Security and the Corporation shall not be
required to issue or deliver such Unit Certificate or such Security unless or
until the Person or Persons requesting the transfer or issuance thereof shall
have paid to the Corporation the amount of such tax or shall have established to
the satisfaction of the Corporation that such tax has been paid. The Agent shall
be under no obligation to pay any such tax.

                                    ARTICLE 4
                                    REMEDIES

     SECTION 4.01. Acceleration of Obligations. If at any time there shall have
occurred an Event of Default with respect to any Debt Securities constituting a
part of any Units that has resulted in the principal of any Debt Securities
being declared due and payable immediately pursuant to Section 502 of the
Indenture, then the Holders of not less than 25% of all Unsettled Purchase
Contracts constituting a part of any Units comprising Debt Securities subject to
such declaration may on behalf of all Holders of such Unsettled Purchase
Contracts by notice in writing to the Corporation and Agent declare the
obligations of such Holders to purchase or sell, as the case may be, and of the
Corporation to sell or purchase, as the case may be, the quantity of Purchase
Contract Property specified pursuant to Section 3.02 under each such Unsettled
Purchase Contract to be accelerated to the date of such declaration and, upon
any such declaration, such obligations shall be so accelerated. The foregoing
provision is subject to the condition that if, at any time prior to settlement
of such Purchase Contracts, the declaration with respect to Debt Securities
referred to in the immediately preceding sentence and its consequences are
rescinded and annulled in accordance with Section 502 of the Indenture, the
acceleration of the obligations with respect to Unsettled Purchase Contracts
referred to in the immediately preceding sentence and its consequences may be
annulled and rescinded by vote of the Holders of not less than 25% of all
affected Unsettled Purchase Contracts Outstanding.

     SECTION 4.02. Unconditional Rights under Purchase Contracts; Limitation on
Proceedings by Holders. (a) The Holder of any Unit shall have the right, which
is absolute and unconditional, to purchase or sell, as the case may be, Purchase
Contract Property pursuant to such Purchase Contract and to institute suit for
the enforcement of such right, and such right shall not be impaired without the
consent of such Holder.

     (b) No Holder of any Unit shall have any right by virtue of or by availing
itself of any provision of this Agreement to institute any action or proceeding
at law or in

                                       28
<PAGE>

equity or in bankruptcy or otherwise upon or under or with respect to this
Agreement, or for the appointment of a trustee, receiver, liquidator, custodian
or other similar official or for any other remedy hereunder, unless such Holder
previously shall have given written notice to the Agent and the Corporation of a
Default and of the continuance thereof and, (i) in the case of an Event of
Default under Debt Securities or the Indenture, the procedures (including notice
to the Trustee and the Corporation) described in Article Five of the Indenture
have been complied with and (ii) in the case of a Purchase Contract Default
specified in clause (ii) of the definition thereof, unless the Holders of not
less than 25% of all affected Purchase Contracts comprised by all Units then
Outstanding shall have made written request upon the Agent to institute such
action or proceedings in its own name as Agent hereunder and shall have offered
to the Agent such reasonable indemnity as it may require pursuant to Article
Six, and the Agent for 60 days after its receipt of such notice, request and
offer of indemnity shall have failed to institute such action or proceedings and
no direction inconsistent with such request shall have been given to the Agent
in writing by holders of a majority of all affected Purchase Contracts
constituting parts of Units then Outstanding. Any Holder of a Unit may then (but
only then) seek to enforce the performance of the covenant or agreement with
respect to which such Purchase Contract Default exists; it being intended and
expressly covenanted by the Holder of each Unit with every other Holder and the
Agent that no Holder shall have any right by virtue of or by availing itself of
any provision of this Agreement to affect, disturb or prejudice the rights of
any other Holder, or to obtain or seek to obtain priority over or preference to
any other Holder, or to enforce any right under this Agreement, except in
accordance with this Section or the Indenture and for the equal, ratable and
common benefit of all Holders. For the protection and enforcement of the
provisions of this Section, each and every Holder of a Unit and the Agent shall
be entitled to such relief as can be given either at law or in equity.

     SECTION 4.03. Restoration of Rights and Remedies. If any Holder of Units
has instituted any proceeding to enforce any right or remedy under this
Agreement and such proceeding has been discontinued or abandoned for any reason,
or has been determined adversely to such Holder, then and in every such case,
subject to any determination in such proceeding the Corporation, the Agent, the
Trustee and such Holder shall be restored severally and respectively to their
former positions hereunder and thereafter all rights and remedies the
Corporation, the Agent, the Trustee and such Holder shall continue as though no
such proceeding had been instituted.

     SECTION 4.04. Rights and Remedies Cumulative. Subject to Section 4.02, and
except as otherwise provided with respect to the replacement or payment of
mutilated, destroyed, lost or stolen Unit Certificates, no right or remedy
herein conferred upon or reserved to the Holders of Units is intended to be
exclusive of any other right or remedy, and every right and remedy shall, to the
extent permitted by law, be cumulative and in addition to every other right and
remedy given hereunder or now or hereafter existing at law or in equity or
otherwise. The assertion or employment of any right or remedy hereunder, or
otherwise, shall not prevent the concurrent assertion or employment of any other
appropriate right or remedy.

                                       29
<PAGE>

     SECTION 4.05. Delay or Omission Not Waiver. No delay or omission of any
Holder to exercise any right or remedy accruing upon any Default shall impair
any such right or remedy or constitute a waiver of any such Default or an
acquiescence therein. Every right and remedy given by this Article or by law to
the Holders may be exercised from time to time, and as often as may be deemed
expedient, by such Holders.

     SECTION 4.06. Waiver of Past Defaults. The Holders of not less than a
majority of all affected Purchase Contracts evidenced by Units of all series at
the time Outstanding may on behalf of the Holders of all affected Units waive
any past Purchase Contract Default hereunder and its consequences, except,
unless theretofore cured (i) a Purchase Contract Default resulting from the
failure of the Corporation to deliver (A) in the case of Purchase Contracts
obligating the Corporation to sell, and the Holders to purchase, Purchase
Contract Property (or the cash value thereof) Purchase Contract Property (or the
cash value thereof) against tender of payment therefor or (B) in the case of
Purchase Contracts obligating the Corporation to purchase, and the Holders to
sell, Purchase Contract Property (or the cash value thereof) the applicable
Purchase Price or other Settlement Amount specified pursuant to Section 3.02
against tender of Purchase Contract Property or other amount specified pursuant
to Section 3.02 therefor or (ii) a Purchase Contract Default with respect to a
covenant or provision hereof which under Article Seven cannot be modified or
amended without approval of the Holder of each affected Purchase Contract that
is a part of an Outstanding Unit of any series. In the case of any such waiver,
the Holders, the Agent and the Corporation shall be restored to their former
positions and rights hereunder, respectively.

     Upon any such waiver, such Purchase Contract Default shall cease to exist,
for every purpose of this Agreement, but no such waiver shall extend to any
subsequent or other Purchase Contract Default or impair any right consequent
thereon unless so expressly therein provided.

     SECTION 4.07. Undertaking for Costs. All parties to this Agreement agree,
and each Holder of any Unit by his acceptance thereof shall be deemed to have
agreed, that any court may in its discretion require, in any suit for the
enforcement of any right or remedy under this Agreement, or in any suit against
the Agent for any action taken, suffered or omitted by it as Agent, the filing
by any party litigant in such suit of an undertaking to pay the costs of such
suit, and that such court may in its discretion assess reasonable costs,
including reasonable attorneys' fees, against any party litigant in such suit,
having due regard to the merits and good faith of the claims or defenses made by
such party litigant; provided that the provisions of this Section shall not
apply to any suit instituted by the Agent, to any suit instituted by any Holder
of Units, or group of Holders, holding in the aggregate more than 10% of the
Outstanding Units, or to any suit instituted by any Holder for enforcement of
the right to purchase or sell Purchase Contract Property under the Purchase
Contracts constituting a part of the Units held by such Holder or to receive
payment of the applicable Purchase Price (or other Settlement Amount that may be
specified pursuant to Section 3.02) with respect thereto.

                                       30
<PAGE>

     SECTION 4.08. Waiver of Stay or Extension Laws. The Corporation covenants
(to the extent that it may lawfully do so) that it will not at any time insist
upon, or plead, or in any manner whatsoever claim or take the benefit or
advantage of, any stay or extension law wherever enacted, now or at any time
hereafter in force, that may affect the covenants or the performance of this
Agreement; and the Corporation (to the extent that it may lawfully do so) each
hereby expressly waives all benefit or advantage of any such law and covenants
that it will not hinder, delay or impede the execution of any power herein
granted to the Agent, or the Holders, but will suffer and permit the execution
of every such power as though no such law had been enacted.

     SECTION 4.09. Agent May File Proofs of Claims. In case of the pendency of
any receivership, insolvency, liquidation, bankruptcy or other judicial
proceeding relating to the Corporation or the property of the Corporation or its
creditors, the Agent shall be entitled and empowered, by intervention in such
proceeding or otherwise,

          (i) to file and prove a claim and to file such other papers or
     documents as may be necessary or advisable in order to have the claims of
     the Agent (including any claim for the reasonable compensation, expenses,
     disbursements and advances of the Agent, its agents and counsel) and of the
     Holders allowed in such judicial proceeding; and

          (ii) to collect and receive any moneys or other property payable or
     deliverable on any such claims and to distribute the same;

and any receiver, assignee, trustee, liquidator or other similar official in any
such proceeding is hereby authorized by each Holder to make such payments to the
Agent, and in the event that the Agent shall consent to the making of such
payments directly to the Holders, to pay to the Agent any amount due to it
hereunder; provided, however, that nothing herein shall be deemed to authorize
the Agent to authorize or consent to or vote for or accept or adopt on behalf of
any Holder any plan of reorganization, arrangement, adjustment or composition
affecting the Units or the rights of any Holder thereof, or to authorize the
Agent to vote in respect of the claim of any Holder of Units in any such
proceeding.

     SECTION 4.10. Suits for Enforcement. In case a Purchase Contract Default
has occurred, has not been waived and is continuing, and subject to receipt by
the Agent of the request referred to in Section 4.02 or the direction referred
to in Section 4.11 and the security or indemnity referred to in Section 6.03(f),
the Agent shall have the right to enforce, on behalf of the Holders, the
Purchase Contracts and the covenants and agreements of the Corporation contained
in the Purchase Contracts and in this Agreement with respect to the Purchase
Contracts and to proceed to protect and enforce such rights by appropriate
judicial proceedings to protect and enforce any of such rights, either at law or
in equity or in bankruptcy or otherwise, whether for the specific enforcement of
any such covenant or agreement contained in this Agreement or in the Purchase
Contracts or in aid of the exercise of any power granted in this Agreement or to
enforce any other legal or equitable right vested in the Agent by this Agreement
or by law.

                                       31
<PAGE>

     All rights of action and of asserting claims under this Agreement, or under
the Units or any Securities comprised by the Units, may be enforced by the Agent
without the possession of the Units or any of the Securities comprised by the
Units or the production thereof on any trial or other proceedings relative
thereto, and any such actions or proceedings instituted by the Agent shall be
brought in its own name as agent and any recovery of judgment, subject to the
payment of the expenses, disbursements and compensation of the Agent, each
predecessor Agent and their respective agents and attorneys, shall be for the
ratable benefit of the Holders of the Units or Securities in respect of which
such action was taken.

     SECTION 4.11. Control by Holders. The Holders of a majority of affected
Outstanding Purchase Contracts constituting a part of any Outstanding Units
shall have the right to direct the time, method, and place of conducting any
proceeding for any remedy available to the Agent, or exercising any power
conferred on the Agent with respect to such Purchase Contracts by this
Agreement; provided that such direction shall not be otherwise than in
accordance with law and the provisions of this Agreement and provided further
that (subject to the provisions of Section 6.01) the Agent shall have the right
to decline to follow any such direction if the Agent, being advised by counsel,
shall determine that the action or proceeding so directed may not lawfully be
taken or if the Agent in good faith by its board of directors or board of
trustees or a committee of its Responsible Officers, shall determine that the
action or proceedings so directed could involve the Agent in personal liability
or if the Agent in good faith shall so determine that the actions or
forbearances specified in or pursuant to such direction would be unduly
prejudicial to the interests of Holders of Units not joining in the giving of
said direction, it being understood that (subject to Section 6.01) the Agent
shall have no duty to ascertain whether or not such actions or forbearances are
unduly prejudicial to such Holders.

     Nothing in this Agreement shall impair the right of the Agent in its
discretion (but subject to Section 4.10) to take any action deemed proper by the
Agent and which is not inconsistent with such direction or directions by
Holders.

                                    ARTICLE 5
                     SECURITY INTERESTS AND COLLATERAL AGENT

     SECTION 5.01. Granting of Security Interests; Rights and Remedies of
Collateral Agent; Perfection. In order to secure the observance and performance
of the covenants and agreements of the Holders of Purchase Contracts contained
herein and in such Purchase Contracts, unless otherwise specified pursuant to
Section 2.03:

     (a) Effective upon issuance of Units of any series consisting of Debt
Securities and Purchase Contracts, the Holders thereof acting through the Agent,
as their attorney-in-fact, shall be deemed to grant, sell, convey, assign,
transfer and pledge unto the Collateral Agent, as agent of and for the benefit
of the Corporation, as collateral security for the performance when due by such
Holders of their respective obligations hereunder and under the Purchase
Contracts constituting a part of such Units, a security interest in and to,

                                       32
<PAGE>

and a lien upon and right of set-off (the "Pledge") against, all of their right,
title and interest in and to (i) the Pledged Items; (ii) all additions to and
substitutions for such Pledged Items as may be permissible, if so specified
pursuant to Section 3.02; (iii) all income, proceeds and collections received or
to be received, or derived or to be derived, now or any time hereafter from or
in connection with (i) and (ii) above, and (iv) all powers and rights now owned
or hereafter acquired under or with respect to the Pledged Items (such Pledged
Items, additions, substitutions, proceeds, collections, powers and rights being
herein collectively called the "Collateral").

     (b) Prior to or concurrently with the issuance of Global Units of any
series of which Debt Securities and Purchase Contracts constitute a part, the
initial Holders and the Agent shall cause the Debt Securities constituting a
part of such Global Units to be delivered to the Collateral Agent, and, if
specified pursuant to Section 3.02, accompanied by an instrument of transfer
executed in blank, and the Corporation shall notify the Collateral Agent of the
Pledge and receipt of such notification shall constitute acknowledgment by the
Collateral Agent (as third party in possession or otherwise) of the Pledge and
its holding of the Collateral subject to the Pledge, in each case for purposes
of perfecting the Pledge under applicable law. Subject to the Pledge, the
Holders from time to time of the Units of which the Debt Securities constitute a
part shall have full beneficial ownership of such Debt Securities.

     (c) The Collateral Agent shall have all of the rights, remedies and
recourse with respect to the Collateral afforded a secured party by the Uniform
Commercial Code as in effect in the State of New York (whether or not said Code
is in effect in the jurisdiction where the rights and remedies are asserted), in
addition to, and not in limitation of, the other rights, remedies and recourse
afforded to the Collateral Agent by this Agreement.

     (d) Each Holder, to the extent permitted by applicable law, by accepting
Units of any series issued hereunder authorizes the Collateral Agent to execute
and file, in the name of such Holder, Uniform Commercial Code financing or
continuation statements (which may be carbon, photographic, photostatic or other
reproductions of this Agreement or of a financing statement relating to this
Agreement) which the Collateral Agent in its sole discretion (but subject to
Section 5.03(f)) may deem necessary or appropriate to further perfect, or
maintain the perfection of the security interests granted hereby.

     SECTION 5.02. Distribution of Principal and Interest; Release of
Collateral. Unless otherwise specified pursuant to Section 2.03:

     (a) All payments of principal of, or interest on, any Pledged Items
received by the Collateral Agent pursuant to Section 3.06 (f) shall be paid by
the Collateral Agent in same day funds no later than 2:00 p.m., New York City
time, on the Business Day such payments are received by the Collateral Agent or,
if received on a day that is not a Business Day or after 12:00 noon, New York
City time, on a Business Day, then such payment shall be made no later than 9:00
am., New York City time, on the next succeeding Business Day to the Corporation,
in full satisfaction of the respective obligations of the Holders of the Units

                                       33
<PAGE>

of which such Pledged Items are a part under the Purchase Contracts forming a
part of such Units. Any such payments in excess of such obligations of the
Holders shall be promptly paid to the Agent to the account designated by it for
such purpose. All such payments received by the Agent as provided herein shall
be applied by the Agent pursuant to the provisions hereof.

     (b) Upon notice to the Collateral Agent by the Agent that one or more
Holders of Units have elected to effect Cash Settlement of their respective
obligations under the Purchase Contracts forming a part of such Units in
accordance with the terms hereof, and that either the Agent has received from
such Holders, and paid to the Corporation, the related amounts pursuant to the
terms of the Purchase Contracts and this Agreement or no such payment is
required, and that all other conditions to such Cash Settlement have been
satisfied, then the Collateral Agent shall release from the Pledge the Pledged
Items relating to such Purchase Contracts.

     SECTION 5.03. Certain Duties and Responsibilities of the Collateral Agent.
The Collateral Agent accepts its duties and responsibilities hereunder as agent
for the Corporation, on and subject to the following terms and conditions:

     (a) The Collateral Agent undertakes to perform such duties and only such
duties as are specifically set forth in this Agreement. No provision of this
Agreement shall be construed to relieve the Collateral Agent from liability for
its own negligent action, its own negligent failure to act, or its own willful
misconduct, except that

          (i) the duties and obligations of the Collateral Agent with respect to
     the Units shall be determined solely by the express provisions of this
     Agreement and the Collateral Agent shall not be liable except for the
     performance of such duties and obligations as are specifically set forth in
     this Agreement, and no implied covenants or obligations shall be read into
     this Agreement against the Collateral Agent; and

          (ii) in the absence of bad faith on its part, the Collateral Agent may
     conclusively rely, as to the truth of the statements and the correctness of
     the opinions expressed therein, upon any statements, certificates or
     opinions furnished to the Collateral Agent and conforming to the
     requirements of this Agreement, but in the case of any such statements,
     certificates or opinions that by any provision hereof are specifically
     required to be furnished to the Collateral Agent, the Collateral Agent
     shall be under a duty to examine the same to determine whether or not they
     conform to the requirements of this Agreement.

     (b) The Collateral Agent shall not be liable for any error of judgment made
in good faith by a Responsible Officer of the Collateral Agent, unless it shall
be proved that the Collateral Agent was negligent in ascertaining the pertinent
facts.

                                       34
<PAGE>

     (c) No provision of this Agreement shall require the Collateral Agent to
expend or risk its own funds or otherwise incur any financial liability in the
performance of any of its duties hereunder, or in the exercise of any of its
rights or powers, if it shall have reasonable grounds for believing that
repayment of such funds or adequate indemnity against such risk or liability is
not reasonably assured to it.

     (d) Whether or not therein expressly so provided, every provision of this
Agreement relating to the conduct or affecting the liability of or affording
protection to the Collateral Agent shall be subject to the provisions of this
Section.

     (e) The Collateral Agent is acting solely as agent for the Corporation
hereunder and owes no fiduciary duties to any Person by virtue of this
Agreement.

     (f) Except as specifically provided herein, the Collateral Agent shall not
be responsible for the validity, sufficiency, collectibility or marketability of
any Collateral given to or held by it hereunder or for the validity or
sufficiency of the lien on the Collateral purported to be created hereby and
shall have no obligation to file any financing or continuation statement with
respect to the Collateral in any public office at any time or time.

     SECTION 5.04. Knowledge of the Collateral Agent. The Collateral Agent shall
not be deemed to have knowledge of any default by any person under any Purchase
Contract, unless and until a Responsible Officer of the Collateral Agent
assigned to its Corporate Trustee Administration Department shall have actual
knowledge thereof or shall have received written notice thereof from the
Corporation or any Holder.

     SECTION 5.05. Certain Rights of Collateral Agent. Subject to the provisions
of Section 5.03:

     (a) the Collateral Agent may rely and shall be protected in acting or
refraining from acting upon any resolution, certificate, statement, instrument,
opinion, report, notice, request, direction, consent, order, bond, debenture,
note, coupon, security or other paper or document believed by it to be genuine
and to have been signed or presented by the proper party or parties;

     (b) any request, direction, order or demand of the Corporation mentioned
herein shall be sufficiently evidenced by an Officers' Certificate, Issuer Order
or Issuer Request, and any resolution of the Board of Directors of the
Corporation, as the case may be, may be sufficiently evidenced by a Board
Resolution;

     (c) the Collateral Agent may consult with counsel and the written advice of
such counsel or any Opinion of Counsel shall be full and complete authorization
and protection with respect to any action taken, suffered or omitted by it
hereunder in good faith and in reliance thereon in accordance with such advice
or Opinion of Counsel;

     (d) the Collateral Agent shall not be bound to make any investigation into
the facts or matters stated in any resolution, certificate, statement,
instrument, opinion,

                                       35
<PAGE>

report, notice, request, consent, order, approval, appraisal, bond, debenture,
note, coupon, security or other paper or document;

     (e) the Collateral Agent may execute any of the powers hereunder or perform
any duties hereunder either directly or by or through agents or attorneys and
the Collateral Agent shall not be responsible for any misconduct or negligence
on the part of any such agent or attorney appointed with due care by it
hereunder; and

     (f) the Collateral Agent shall not be liable for any action taken or
omitted by it in good faith and believed by it to be authorized or within the
discretion, rights or powers conferred upon it by this Agreement.

     SECTION 5.06. Compensation and Reimbursements. The Corporation agrees:

     (a) to pay to the Collateral Agent from time to time reasonable
compensation for all services rendered by it hereunder (which compensation shall
not be limited by any provision of law with regard to the compensation of a
trustee of an express trust),

     (b) except as otherwise expressly provided herein, to reimburse the
Collateral Agent and any predecessor Collateral Agent upon its request for all
reasonable expenses, disbursements and advances incurred or made by the
Collateral Agent in accordance with any provision of this Agreement (including
the reasonable compensation and the expenses and disbursements of its agents and
counsel), except any such expense, disbursement or advance as may be
attributable to its negligence or bad faith; and

     (c) to indemnify the Collateral Agent and any predecessor Collateral Agent
for, and to hold it harmless against, any loss, liability or expense incurred
without negligence or bad faith on its part, arising out of or in connection
with the acceptance or administration of this Agreement and its duties
hereunder, including the costs and expenses of defending itself against or
investigating any claim of liability in connection with the exercise or
performance of any of its powers or duties hereunder.

     The obligations of the Corporation under this Section to compensate and
indemnify the Collateral Agent and any predecessor Collateral Agent and to pay
or reimburse the Collateral Agent and any predecessor Collateral Agent for
expenses, disbursements and advances shall constitute additional indebtedness
hereunder and shall survive the resignation or removal of such Collateral Agent
or predecessor Collateral Agent or the termination hereof or of any Purchase
Contract. Such additional indebtedness shall be a senior claim to that of the
Units upon all property and funds held or collected by the Collateral Agent as
such, except funds held in trust for the benefit of the Holders of Units, and
the Units are hereby subordinated to such senior claim.

     SECTION 5.07. Corporate Collateral Agent Required Eligibility. There shall
at all times be a Collateral Agent hereunder which shall be a corporation
organized and doing

                                       36
<PAGE>

business under the laws of the United States of America, any State thereof or
the District of Columbia, having, together with its parent, a combined capital
and surplus of at least $50,000,000, subject to supervision or examination by
Federal, State or District of Columbia authority and willing to act on
reasonable terms. If such corporation, or its parent, publishes reports of
condition at least annually, pursuant to law or to the requirements of the
aforesaid supervising or examining authority, then for the purposes of this
Section, the combined capital and surplus of such corporation shall be deemed to
be its combined capital and surplus as set forth in its most recent report of
condition so published. [**The Collateral Agent hereunder shall at all times be
the Agent hereunder and the Trustee and a Paying Agent under the Indenture,
subject to receipt of an Opinion of Counsel that the same Person is not
precluded by law from acting in such capacities.] If at any time the Collateral
Agent shall cease to be eligible in accordance with the provisions of this
Section, it shall resign immediately in the manner and with the effect
hereinafter specified in this Article. The Collateral Agent may appoint one or
more sub-collateral agents with offices or agencies in a city or cities outside
the United States.

     SECTION 5.08. Resignation and Removal; Appointment of Successor. (a) No
resignation or removal of the Collateral Agent and no appointment of a successor
Collateral Agent pursuant to this Article shall become effective until the
acceptance of appointment by the successor Collateral Agent in accordance with
the applicable requirements of Section 5.09.

     (b) The Collateral Agent may resign by giving written notice thereof to the
Corporation and the Holders, in accordance with Section 11.05 and Section 11.06,
60 days prior to the effective date of such resignation. The Collateral Agent
may be removed at any time upon 60 days' notice by the filing with it of an
instrument in writing signed on behalf of the Corporation and specifying such
removal and the date when it is intended to become effective. If the instrument
of acceptance by a successor Collateral Agent required by Section 5.09 shall not
have been delivered to the Collateral Agent within 30 days after the giving of
such notice of resignation, the resigning Collateral Agent may petition any
court of competent jurisdiction for the appointment of a successor Collateral
Agent.

     (c) If at any time

          (i) the Collateral Agent shall cease to be eligible under Section
     5.07, [**or shall cease to be eligible as Agent hereunder or as Trustee
     under the Indenture] and shall fail to resign after written request
     therefor by the Corporation, or

          (ii) the Collateral Agent shall become incapable of acting with
     respect to the Collateral or shall be adjudged a bankrupt or insolvent, or
     a receiver or liquidator of the Collateral Agent or of its property shall
     be appointed or any public officer shall take charge or control of the
     Collateral Agent or of its property or affairs for the purpose of
     rehabilitation, conservation or liquidation, then, in any such case, the
     Corporation, by Board

                                       37
<PAGE>

     Resolution, may remove the Collateral Agent and appoint a successor
     Collateral Agent.

     (d) If the Collateral Agent shall resign, be removed or become incapable of
acting, or if a vacancy shall occur in the office of Collateral Agent for any
cause, the Corporation, by Board Resolution, shall promptly appoint a successor
Collateral Agent or Collateral Agents (other than the Corporation) and shall
comply with the applicable requirements of Section 5.09.

     (e) The Corporation shall give, or shall cause such successor Collateral
Agent to give, notice of each resignation and each removal of the Collateral
Agent and each appointment of a successor Collateral Agent to all Holders of
Units in accordance with Section 11.06. Each notice shall include the name of
the successor Collateral Agent and the address of its Corporate Trust Office.

     SECTION 5.09. Acceptance of Appointment by Successor. (a) In case of the
appointment hereunder of a successor Collateral Agent, every such successor
Collateral Agent so appointed shall execute, acknowledge and deliver to the
Corporation and to the retiring Collateral Agent an instrument accepting such
appointment, and thereupon the resignation or removal of the retiring Collateral
Agent shall become effective and such successor Collateral Agent, without any
further act, deed or conveyance, shall become vested with all the rights,
powers, agencies and duties of the retiring Collateral Agent, with like effect
as if originally named as Collateral Agent hereunder; but, on the request of the
Corporation or the successor Collateral Agent, such retiring Collateral Agent
shall, upon payment of all amounts due and payable to it pursuant to Section
5.06, execute and deliver an instrument transferring to such successor
Collateral Agent all the rights and powers of the retiring Collateral Agent and
shall duly assign, transfer and deliver to such successor Collateral Agent all
property and money held by such retiring Collateral Agent hereunder. Any
retiring Collateral Agent shall, nonetheless, retain a prior claim upon all
property or funds held or collected by such Collateral Agent to secure any
amounts then due it pursuant to Section 5.06.

     (b) Upon request of any such successor Collateral Agent, the Corporation
shall execute any and all instruments for more fully and certainly vesting in
and confirming to such successor Collateral Agent all such rights, powers and
agencies referred to in paragraph (a) of this Section.

     (c) No successor Collateral Agent shall accept its appointment unless at
the time of such acceptance such successor Collateral Agent shall be eligible
under this Article.

     (d) Upon acceptance of appointment by any successor Collateral Agent as
provided in this Section, the Corporation shall give notice thereof to the
Holders of Units in accordance with Section 11.06. If the acceptance of
appointment is substantially contemporaneous with the resignation of the
Collateral Agent, then the notice called for by the preceding sentence may be
combined with the notice called for by Section 5.08. If the Corporation fails to
give such notice within ten days after acceptance of appointment by the

                                       38
<PAGE>

successor Collateral Agent, the successor Collateral Agent shall cause such
notice to be given at the expense of the Corporation.

     SECTION 5.10. Merger, Conversion, Consolidation or Succession to Business.
Any corporation into which the Collateral Agent may be merged or converted or
with which it may be consolidated, or any corporation resulting from any merger,
conversion or consolidation to which the Collateral Agent shall be a party, or
any corporation succeeding to all or substantially all the agency business of
the Collateral Agent, shall be the successor of the Collateral Agent hereunder,
without the execution or filing of any paper or any further act on the part of
any of the parties hereto, provided that such corporation shall be otherwise
eligible under this Article.

     SECTION 5.11. Money Held in Trust. Money held by the Collateral Agent in
trust hereunder need not be segregated from other funds held by the Collateral
Agent, except to the extent required by law. The Collateral Agent shall be under
no obligation to invest or pay interest on any money received by it hereunder,
except as otherwise agreed with the Corporation. Any interest accrued on funds
deposited with the Collateral Agent or any Paying Agent under this Agreement
shall be paid to the Corporation from time to time and the Holders of Units
(whether or not any Purchase Contracts are to be redeemed with such funds) shall
have no claim to any such interest.

                                    ARTICLE 6
                                    THE AGENT

     SECTION 6.01. Certain Duties and Responsibilities. (a) The Agent undertakes
to perform such duties and only such duties as are specifically set forth in
this Agreement.

     (b) No provision of this Agreement shall be construed to relieve the Agent
from liability for its own negligent action, its own negligent failure to act,
or its own willful misconduct, except that

          (i) the duties and obligations of the Agent with respect to the Units
     shall be determined solely by the express provisions of this Agreement and
     the Agent shall not be liable except for the performance of such duties and
     obligations as are specifically set forth in this Agreement, and no implied
     covenants or obligations shall be read into this Agreement against the
     Agent; and

          (ii) in the absence of bad faith on its part, the Agent may
     conclusively rely, as to the truth of the statements and the correctness of
     the opinions expressed therein, upon any statements, certificates or
     opinions furnished to the Agent and conforming to the requirements of this
     Agreement, but in the case of any such statements, certificates or opinions
     that by any provision hereof are specifically required to be furnished to
     the Agent, the

                                       39
<PAGE>

     Agent shall be under a duty to examine the same to determine whether or not
     they conform to the requirements of this Agreement.

     (c) The Agent shall not be liable for any error of judgment made in good
faith by a Responsible Officer of the Agent, unless it shall be proved that the
Agent was negligent in ascertaining the pertinent facts.

     (d) The Agent shall not be liable with respect to any action taken or
omitted to be taken by it in good faith in accordance with the direction of the
Holders of a majority in number of affected Outstanding Purchase Contracts
relating to the time, method and place of conducting any proceeding for any
remedy available to the Agent, or exercising any power conferred upon the Agent,
under this Agreement.

     (e) No provision of this Agreement shall require the Agent to expend or
risk its own funds or otherwise incur any financial liability in the performance
of any of its duties hereunder, or in the exercise of any of its rights or
powers, if it shall have reasonable grounds for believing that repayment of such
funds or adequate indemnity against such risk or liability is not reasonably
assured to it.

     (f) Whether or not therein expressly so provided, every provision of this
Agreement relating to the conduct or affecting the liability of or affording
protection to the Agent shall be subject to the provisions of this Section.

     (g) The Agent is acting solely as agent for the Corporation hereunder and
owes no fiduciary duties to any person by virtue of this Agreement.

     SECTION 6.02. Notice of Default. Within 90 days after the occurrence of any
Purchase Contract Default of which a Responsible Officer of the Agent assigned
to its Corporate Trustee Administration Department has actual knowledge (and
except with respect to a Purchase Contract Default under the Purchase Contracts
existing on the Settlement Date, in which event, as promptly as practicable
thereafter) the Agent shall provide to all Holders of Units, in the manner
provided in Section 11.06, notice of such Purchase Contract Default hereunder,
unless such Purchase Contract Default shall have been cured or waived.

     SECTION 6.03. Certain Rights of Agent. Subject to the provisions of Section
6.01:

     (a) the Agent may rely and shall be protected in acting or refraining from
acting upon any resolution, certificate, statement, instrument, opinion, report,
notice, request, direction, consent, order, bond, debenture, note, coupon,
security or other paper or document believed by it to be genuine and to have
been signed or presented by the proper party or parties;

     (b) any request, direction, order or demand of the Corporation mentioned
herein shall be sufficiently evidenced by an Officers' Certificate or Issuer
Order or Issuer

                                       40
<PAGE>

Request and any resolution of the Board of Directors of the Corporation, as the
case may be, may be sufficiently evidenced by a Board Resolution;

     (c) the Agent may consult with counsel and the written advice of such
counsel or any Opinion of Counsel shall be full and complete authorization and
protection with respect to any action taken, suffered or omitted by it hereunder
in good faith and in reliance thereon in accordance with such advice or opinion
of Counsel;

     (d) the Agent shall not be bound to make any investigation into the facts
or matters stated in any resolution, certificate, statement, instrument,
opinion, report, notice, request, consent, order, approval, appraisal, bond,
debenture, note, coupon, security or other paper or document, but the Agent, in
its discretion, may make reasonable further inquiry or investigation into such
facts or matters related to the issuance of the Debt Securities and the
execution, delivery and performance of the Purchase Contracts as it may see fit,
and, if the Agent shall determine to make such further inquiry or investigation,
it shall be entitled to examine the books, records and premises of the
Corporation, at reasonable times during normal business hours, personally or by
agent or attorney;

     (e) the Agent may execute any of the powers hereunder or perform any duties
hereunder either directly or by or through agents or attorneys and the Agent
shall not be responsible for any misconduct or negligence on the part of any
such agent or attorney appointed with due care by it hereunder;

     (f) the Agent shall be under no obligation to exercise any of the rights or
powers vested in it by this Agreement at the request, order or direction of any
of the Holders pursuant to this Agreement, unless such Holders shall have
offered to the Agent reasonable security or indemnity against the costs,
expenses and liabilities that might be incurred by it in compliance with such
request or direction;

     (g) the Agent shall not be liable for any action taken or omitted by it in
good faith and believed by it to be authorized or within the discretion, rights
or powers conferred upon it by this Agreement; and

     (h) the Agent shall not be charged with notice or knowledge of a Purchase
Contract Default unless a Responsible Officer of the Agent assigned to its
Corporate Trustee Administration Department shall have actual knowledge thereof.

     SECTION 6.04. Not Responsible for Recitals or Issuance of Units. The
recitals contained herein, in the Indenture and in the Units, except the
Trustee's and Agent's certificates of authentication or countersignature, shall
be taken as the statements of the Corporation, and none of the Trustee, Agent or
any Authenticating Agent assumes any responsibility for their correctness. The
Agent makes no representations as to the validity or sufficiency of this
Agreement or of the Units. None of the Trustee, Agent or any Authenticating
Agent shall be accountable for the use or application by the Corporation of the
proceeds with respect to Units or be responsible for exercising any remedy
hereunder on behalf of the Holders, except as expressly provided in this
Agreement.

                                       41
<PAGE>

     SECTION 6.05. May Hold Units. The Agent, the Collateral Agent, the Trustee,
any Authenticating Agent, any Purchase Contract Registrar or any other agent of
the Corporation, the Trustee or the Agent, in its individual or any other
capacity, may become the owner or pledgee of Units and may otherwise deal with
the Corporation and receive, collect, hold and retain collections from the
Corporation with the same rights it would have if it were not Authenticating
Agent, Purchase Contract Registrar or such other agent, the Trustee, the
Collateral Agent or the Agent.

     SECTION 6.06. Money Held in Trust. Money held by the Agent in trust
hereunder need not be segregated from other funds held by the Agent, except to
the extent required by law. The Agent shall be under no obligation to invest or
pay interest on any money received by it hereunder, except as otherwise agreed
with the Corporation. Any interest accrued on funds deposited with the Agent or
any Paying Agent under this Agreement shall be paid to the Corporation from time
to time and the Holders of Units (whether or not any Purchase Contracts are to
be redeemed with such funds) shall have no claim to any such interest.

     SECTION 6.07. Compensation and Reimbursement. The Corporation agrees:

     (a) to pay to the Agent from time to time reasonable compensation for all
services rendered by it hereunder (which compensation shall not be limited by
any provision of law with regard to the compensation of a trustee of an express
trust);

     (b) except as otherwise expressly provided herein, to reimburse the Agent
and any predecessor Agent upon its request for all reasonable expenses,
disbursements and advances incurred or made by the Agent in accordance with any
provision of this Agreement (including the reasonable compensation and the
expenses and disbursements of its agents and counsel), except any such expense,
disbursement or advance as may be attributable to its negligence or bad faith;
and

     (c) to indemnify the Agent and any predecessor Agent for, and to hold it
harmless against, any loss, liability or expense incurred without negligence or
bad faith on its part, arising out of or in connection with the acceptance or
administration of this Agreement and its duties hereunder, including the costs
and expenses of defending itself against or investigating any claim of liability
in connection with the exercise or performance of any of its powers or duties
hereunder.

     The obligations of the Corporation under this Section to compensate and
indemnify the Agent and any predecessor Agent and to pay or reimburse the Agent
and any predecessor Agent for expenses, disbursements and advances shall
constitute additional indebtedness hereunder and shall survive the resignation
or removal of such Agent or predecessor Agent or the termination hereof or any
Purchase Contract. Such additional indebtedness shall be a senior claim to that
of the Units upon all property and funds held or collected by the Agent as such,
except funds held in trust for the benefit of the Holders of particular Units,
and the Units are hereby subordinated to such senior claim.

                                       42
<PAGE>

     SECTION 6.08. Corporate Agent Required: Eligibility. There shall at all
times be an Agent hereunder which shall be a corporation organized and doing
business under the laws of the United States of America, any State thereof or
the District of Columbia, having, together with its parent, a combined capital
and surplus of at least $50,000,000, subject to supervision or examination by
Federal, State or District of Columbia authority and willing to act on
reasonable terms. If such corporation, or its parent, publishes reports of
condition at least annually, pursuant to law or to the requirements of the
aforesaid supervising or examining authority, then for the purposes of this
Section, the combined capital and surplus of such corporation shall be deemed to
be its combined capital and surplus as set forth in its most recent report of
condition so published. [**The Agent hereunder shall at all times be the
Collateral Agent hereunder and the Trustee under the Indenture, subject to
receipt of an Opinion of Counsel that the same Person is not precluded by law
from acting in such capacities.] If at any time the Agent shall cease to be
eligible in accordance with the provisions of this Section, it shall resign
immediately in the manner and with the effect hereinafter specified in this
Article. The Agent may appoint one or more sub-agents with offices or agencies
in a city or cities outside the United States.

     SECTION 6.09. Resignation and Removal: Appointment of Successor. (a) No
resignation or removal of the Agent and no appointment of a successor Agent
pursuant to this Article shall become effective until the acceptance of
appointment by the successor Agent in accordance with the applicable
requirements of Section 6.10.

     (b) The Agent may resign by giving written notice thereof to the
Corporation and the Holders, in accordance with Section 11.05 and Section 11.06,
60 days prior to the effective date of such resignation. The Agent may be
removed at any time upon 60 days' notice by the filing with it of an instrument
in writing signed on behalf of the Corporation and specifying such removal and
the date when it is intended to become effective. If the instrument of
acceptance by a successor Agent required by Section 6.10 shall not have been
delivered to the Agent within 30 days after the giving of such notice of
resignation, the resigning Agent may petition any court of competent
jurisdiction for the appointment of a successor Agent.

     (c) If at any time

          (i) the Agent shall cease to be eligible under Section 6.08, [**or
     shall cease to be eligible as Collateral Agent hereunder or as Trustee
     under the Indenture,] and shall fail to resign after written request
     therefor by the Corporation or by any Holder, or

          (ii) the Agent shall become incapable of acting with respect to the
     Units or shall be adjudged a bankrupt or insolvent, or a receiver or
     liquidator of the Agent or of its property shall be appointed or any public
     officer shall take charge or control of the Agent or of its property or
     affairs for the purpose of rehabilitation, conservation or liquidation,
     then, in any such case, (A) the Corporation, by Board Resolution, may
     remove the Agent and appoint a

                                       43
<PAGE>

     successor Agent, or (B) any Holder who has been a bona fide Holder of a
     Unit for at least six months may, on behalf of himself and all others
     similarly situated, petition any court of competent jurisdiction for the
     removal of the Agent and the appointment of a successor Agent or Agents.
     Such court may thereupon, after such notice, if any, as it may deem proper
     and prescribe, remove the Agent and appoint a successor Agent.

     (d) If the Agent shall resign, be removed or become incapable of acting, or
if a vacancy shall occur in the office of Agent for any cause, the Corporation,
by Board Resolution, shall promptly appoint a successor Agent or Agents (other
than the Corporation) and shall comply with the applicable requirements of
Section 6.10. If no successor Agent shall have been so appointed by the
Corporation and accepted appointment in the manner required by Section 6.10, any
Holder who has been a bona fide Holder of a Unit for at least six months may, on
behalf of himself and all others similarly situated, petition any court of
competent jurisdiction for the appointment of a successor Agent.

     (e) The Corporation shall give, or shall cause such successor Agent to
give, notice of each resignation and each removal of the Agent and each
appointment of a successor Agent to all Holders of Units in accordance with
Section 11.06. Each notice shall include the name of the successor Agent and the
address of its Corporate Trust Office.

     SECTION 6.10. Acceptance of Appointment by Successor. (a) In case of the
appointment hereunder of a successor Agent, every such successor Agent so
appointed shall execute, acknowledge and deliver to the Corporation and to the
retiring Agent an instrument accepting such appointment, and thereupon the
resignation or removal of the retiring Agent shall become effective and such
successor Agent, without any further act, deed or conveyance, shall become
vested with all the rights, powers, agencies and duties of the retiring Agent,
with like effect as if originally named as Agent hereunder; but, on the request
of the Corporation or the successor Agent, such retiring Agent shall, upon
payment of all amounts due and payable to it pursuant to Section 6.07, execute
and deliver an instrument transferring to such successor Agent all the rights
and powers of the retiring Agent and shall duly assign, transfer and deliver to
such successor Agent all property and money held by such retiring Agent
hereunder. Any retiring Agent shall, nonetheless, retain a prior claim upon all
property or funds held or collected by such Agent to secure any amounts then due
it pursuant to Section 6.07.

     (b) Upon request of any such successor Agent, the Corporation shall execute
any and all instruments for more fully and certainly vesting in and confirming
to such successor Agent all such rights, powers and agencies referred to in
paragraph (a) of this Section.

     (c) No successor Agent shall accept its appointment unless at the time of
such acceptance such successor Agent shall be eligible under this Article.

     (d) Upon acceptance of appointment by any successor Agent as provided in
this Section, the Corporation shall give notice thereof to the Holders of Units
in

                                       44
<PAGE>

accordance with Section 11.06. If the acceptance of appointment is substantially
contemporaneous with the resignation of the Agent, then the notice called for by
the preceding sentence may be combined with the notice called for by Section
6.09. If the Corporation fails to give such notice within ten days after
acceptance of appointment by the successor Agent, the successor Agent shall
cause such notice to be given at the expense of the Corporation.

     SECTION 6.11. Merger, Conversion, Consolidation or Succession to Business.
Any corporation into which the Agent may be merged or converted or with which it
may be consolidated, or any corporation resulting from any merger, conversion or
consolidation to which the Agent shall be a party, or any corporation succeeding
to all or substantially all the agency business of the Agent, shall be the
successor of the Agent hereunder, without the execution or filing of any paper
or any further act on the part of any of the parties hereto, provided that such
corporation shall be otherwise eligible under this Article. In case any Purchase
Contracts shall have been countersigned and executed, but not delivered, by the
Agent then in office, any successor by merger, conversion or consolidation to
such Agent may adopt such countersignature and execution and deliver the
Purchase Contracts so countersigned and executed with the same effect as if such
successor Agent had itself countersigned and executed such Purchase Contracts.

     SECTION 6.12. Appointment of Authenticating Agent. At any time when any of
the Units remain Outstanding the Agent may, by an instrument in writing, appoint
an Authenticating Agent or Agents with respect to the Purchase Contracts to be
authorized to act on behalf of the Agent to countersign, execute and deliver the
Purchase Contracts issued upon exchange, registration of transfer or pursuant to
Section 2.09 and Purchase Contracts so countersigned, executed and delivered
shall be entitled to the benefits of this Agreement and shall be valid and
obligatory for all purposes as if countersigned by the Agent hereunder. Wherever
reference is made in this Agreement to the countersignature, execution and
delivery of Purchase Contracts by the Agent or the Agent's countersignature or
execution, such references shall be deemed to include countersignature,
execution and delivery on behalf of the Agent by an Authenticating Agent and a
countersignature and execution executed on behalf of the Agent by an
Authenticating Agent. Each Authenticating Agent shall be acceptable to the
Corporation and shall at all times be a corporation organized and doing business
under the laws of the United States of America, any State thereof or the
District of Columbia, authorized under such laws to act as Authenticating Agent,
subject to supervision or examination by Federal or State or District of
Columbia authority and having, together with its parent, a combined capital and
surplus of not less than $50,000,000. If such Authenticating Agent, or its
parent, publishes reports of condition at least annually, pursuant to law or to
the requirements of the aforesaid supervising or examining authority, then for
the purposes of this Section, the combined capital and surplus of such
Authenticating Agent shall be deemed to be its combined capital and surplus as
set forth in its most recent report of condition so published. If at any time an
Authenticating Agent shall cease to be eligible in accordance with the
provisions of this Section, such Authenticating Agent shall resign immediately
in the manner and with the effect specified in this Section. The Agent may also

                                       45
<PAGE>

appoint one or more Authenticating Agents with offices or agencies in a city or
cities outside the United States.

     Any corporation into which an Authenticating Agent may be merged or
converted or with which it may be consolidated, or any corporation resulting
from any merger, conversion or consolidation to which such Authenticating Agent
shall be a party, or any corporation succeeding to all or substantially all the
agency business of an Authenticating Agent, shall continue to be an
Authenticating Agent, without the execution or filing of any paper or any
further act on the part of the Agent or the Authenticating Agent, provided that
such corporation shall be otherwise eligible under this Section.

     An Authenticating Agent may resign at any time by giving written notice
thereof to the Agent and to the Corporation. The Agent may at any time terminate
the agency of an Authenticating Agent by giving written notice thereof to such
Authenticating Agent and to the Corporation. Upon receiving such a notice of
resignation or upon such a termination, or in case at any time such
Authenticating Agent shall cease to be eligible in accordance with the
provisions of this Section, the Agent may appoint a successor Authenticating
Agent which shall be acceptable to the Corporation and shall provide written
notice of such appointment to all Holders of Units in the manner and to the
extent provided in Section 11.06. Any successor Authenticating Agent upon
acceptance of its appointment hereunder shall become vested with all the rights,
powers and duties of its predecessor hereunder, with like effect as if
originally named as an Authenticating Agent. No successor Authenticating Agent
shall be appointed unless eligible under the provisions of this Section. No
Authenticating Agent shall have any responsibility or liability for any action
taken by it as such at the direction of the Agent.

     The provisions of Sections 2.10, 6.04 and 6.05 shall be applicable to each
Authenticating Agent.

                                       46
<PAGE>

     Pursuant to each appointment made under this Section, the Purchase
Contracts covered by such appointment may have endorsed thereon, in addition to
the form of Agent's countersignature and execution of the Purchase Contracts
evidenced thereby, an alternative countersignature and execution of the Purchase
Contracts contained therein in the following forms:

                                       ___________________________________, as
                                              Agent, as attorney-in-fact of the
                                              Holder hereof

                                       By [NAME OF AUTHENTICATING
                                          AGENT], as Authenticating Agent

                                       By:
                                          --------------------------------------
                                          [Authorized Officer]
                                          Title:

                                       Countersigned:

                                       ___________________________________, as
                                              Agent

                                       By [NAME OF AUTHENTICATING AGENT], as
                                          Authenticating Agent

                                       By:
                                           -------------------------------------
                                           [Authorized Officer]
                                           Title:

     SECTION 6.13. Corporation to Furnish Agent Names and Addresses of Holders.
The Corporation will furnish or cause to be furnished to the Agent

     (a) not later than 15 days after each Regular Record Date in each year, a
list, in such form as the Agent may reasonably require, of the names and
addresses of the Holders of Registered Units as of such Regular Record Date, and

     (b) at such other times as the Agent may request in writing, within 30 days
after the receipt by the Corporation of any such request, a list of similar form
and content as of a date not more than 15 days prior to the time such list is
furnished; provided that no such

                                       47
<PAGE>

list need be furnished if the Agent shall be the Purchase Contract Registrar and
the registrar under the Indenture.

     SECTION 6.14. Preservation of Information; Communications to Holders. (a)
The Agent shall preserve, in as current a form as is reasonably practicable, the
names and addresses of Holders of Registered Units contained in the most recent
list furnished to the Agent as provided in Section 6.13 and the names and
addresses of Holders of Registered Units received by the Agent in its capacity
as Purchase Contract Registrar and the registrar under the Indenture. The Agent
may destroy any list furnished to it as provided in Section 6.13 upon receipt of
a new list so furnished.

     (b) If three or more Holders (herein referred to as "applicants") apply in
writing to the Agent, and furnish to the Agent reasonable proof that each such
applicant has owned a Unit for a period of at least six months preceding the
date of such application, and such application states that the applicants desire
to communicate with other Holders with respect to their rights under this
Agreement or under the Units and is accompanied by a copy of the form of proxy
or other communication that such applicants propose to transmit, then the Agent
shall, within five Business Days after the receipt of such application, at its
election either (i) afford such applicants access to the information preserved
at the time by the Agent in accordance with Section 6.14 (a) or (ii) inform such
applicants as to the approximate number of Holders whose names and addresses
appear in the information preserved at the time by the Agent, and as to the
approximate cost of mailing to such Holders the form of proxy or other
communication, if any, specified in such application.

     If the Agent shall elect not to afford such applicants access to such
information, the Agent shall, upon the written request of such applicants, mail
to each Holder whose name and address appears in the information preserved at
the time by the Agent, a copy of the form of proxy or other communication that
is specified in such application, with reasonable promptness after a tender to
the Agent of the material to be mailed and of payment, or provision for payment,
of the reasonable expenses of mailing, unless within five days after such
tender, the Agent shall mail to such applicants a written statement to the
effect that in the opinion of the Agent, such mailing would be contrary to the
best interests of the Holders or would be in violation of applicable law.
Thereafter, the Agent shall be relieved of any obligation or duty to such
applicants with respect to their application.

     (c) Every Holder of Units, by his acceptance thereof, agrees with the
Corporation and the Agent that neither the Corporation nor the Agent nor any
agent of any of them shall be held accountable by reason of the disclosure of
any such information as to the names and addresses of the Holders in accordance
with Section 6.14(b), regardless of the source from which such information was
derived, and that the Agent shall not be held accountable by reason of mailing
any material pursuant to a request made under Section 6.14(b).

     SECTION 6.15. No Obligation of Holder. Except to the extent otherwise
provided in this Agreement, the Agent assumes no obligations and shall not be
subject to any

                                       48
<PAGE>

liability under this Agreement or any Purchase Contract with respect to the
obligations of the Holder of a Unit thereunder. The Corporation agrees, and each
Holder of a Unit Certificate, by his acceptance thereof, shall be deemed to have
agreed, that the Agent's execution of the Purchase Contracts evidenced by the
Unit Certificates shall be solely as agent and attorney-in-fact for the Holders,
and that the Agent shall have no obligation to perform such Purchase Contracts
on behalf of the Holders, except to the extent provided in this Article.

     SECTION 6.16. Tax Compliance. (a) The Agent, on its own behalf and on
behalf of the Corporation, will comply with all applicable certification,
information reporting and withholding (including "backup" withholding)
requirements imposed by applicable United States, federal and state tax laws,
regulations or administrative practice (i) with respect to payments on, or
transfer or redemption of the Debt Securities or the Purchase Contracts or (ii)
if specifically instructed by the Corporation, with respect to the issuance,
delivery, holding, or exercise of rights (other than by payment, transfer or
redemption) under the Debt Securities or the Purchase Contracts. Such compliance
shall include, without limitation, the preparation and timely filing of required
returns with respect to, and the timely payment of, all amounts required to be
withheld to the appropriate taxing authority or its designated agent. The
Corporation will provide to the Agent such information as it may reasonably
request in order to comply with this Section.

     (b) The Agent shall comply with any direction received from the Corporation
with respect to the application of such requirements to particular payments or
holders or in other particular circumstances, and may for purposes of this
Agreement rely on any such direction in accordance with the provisions of
Section 6.01(b)(ii) hereof.

     (c) The Agent shall maintain all appropriate records documenting compliance
with such requirements, and shall make such records available on request at
reasonable times during normal business hours to the Corporation or to their
authorized representatives duly authorized in writing.

     (d) Unless otherwise specified pursuant to Section 2.03, the portion of the
issue price of any Units of any series consisting of Debt Securities and
Purchase Contracts allocable to such Debt Securities shall equal the principal
amount payable at maturity of such Debt Securities. The Corporation and the
Holders agree not to file any tax returns, or take a position with any tax
authority, that is inconsistent with the characterization of the Debt Securities
as debt.

     (e) Unless otherwise specified pursuant to Section 2.03, the Corporation by
the issuance and sale of any Unit and any Holder of a Unit by his acceptance
thereof agree to (in the absence of any applicable administrative ruling or
judicial determination to the contrary) treat the Securities that constitute any
Unit as separate securities and to file all United States federal, state and
local tax returns consistent with the treatment of such Unit as constituted by
separate securities.

                                       49
<PAGE>

                                    ARTICLE 7
                             SUPPLEMENTAL AGREEMENTS

     SECTION 7.01. Supplemental Agreements Without Consent of Holders. Without
the consent of any Holders, the Corporation, when authorized by a Board
Resolution or Officers' Certificate, the Agent and the Collateral Agent, at any
time and from time to time, may enter into one or more agreements supplemental
hereto, in form satisfactory to the Agent, for any of the following purposes:

          (i) to evidence the succession of another Person to the Corporation
     and the assumption by any such successor of the covenants of the
     Corporation herein and in the Purchase Contracts; or

          (ii) to evidence and provide for the acceptance of appointment
     hereunder by a successor Agent or Collateral Agent with respect to the
     Units; or

          (iii) to add to the covenants of the Corporation, Collateral Agent
     or Agent such further covenants, restrictions, conditions or provisions as
     the Corporation, Collateral Agent and Agent shall consider to be for the
     protection of the Holders, and to make the occurrence, or the occurrence
     and continuance, of a default in any such additional covenants,
     restrictions, conditions or provisions of the Corporation a Purchase
     Contract Default permitting the enforcement of all or any of the several
     remedies provided in this Agreement as herein set forth; provided that in
     respect of any such additional covenant, restriction, condition or
     provision such supplemental agreement may provide for a particular period
     of grace after default (which period may be shorter or longer than that
     allowed in the case of other defaults) or may provide for an immediate
     enforcement upon such a Purchase Contract Default or may limit the remedies
     available to the Holders upon such a Purchase Contract Default or may limit
     the right of the Holders to waive such Purchase Default; or

          (iv) to establish the form or terms of Units of any series as
     permitted by Sections 2.02 and 2.03 and/or to establish the form or terms
     of Purchase Contracts of any series as permitted by Sections 3.01 and 3.02;

          (v) to comply with the Securities Act of 1933, as amended, the
     Exchange Act or the Investment Company Act of 1940, as amended;

          (vi) to cure any ambiguity, to correct or supplement any provision
     herein or in the Purchase Contracts of any series that may be inconsistent
     with any other provision herein or therein, or to modify, alter, amend or
     supplement any other provisions with respect to matters or questions
     arising under this Agreement or under such Purchase Contracts; provided
     that such action shall not adversely affect the interests of the Holders in
     any material respect; or

          (vii) to change or eliminate any of the provisions of this
     Agreement, provided that any such change or elimination (a) shall become
     effective only when there is no Outstanding Unit, Debt Security or Purchase
     Contract of any series created prior to the

                                       50
<PAGE>

     execution of such supplemental agreement which is entitled to the benefit
     of such provisions or (b) shall not apply to any Unit, Debt Security or
     Purchase Contract Outstanding.

     SECTION 7.02. Supplemental Agreements with Consent of Holders. With the
consent of the Holders of not less than a majority of all Unsettled Purchase
Contracts constituting a part of any series of Units Outstanding, in the case of
clause (A) below, and with the consent of the Holders of not less than a
majority of all Units Outstanding, in the case of clause (B) below, by Act of
said Holders delivered to the Corporation and the Agent, the Corporation, when
authorized by a Board Resolution or Officers' Certificate, the Agent and the
Collateral Agent may enter into an agreement or agreements supplemental hereto
for the purpose of (A) modifying in any manner the terms of the Purchase
Contracts or this Agreement with respect to the Purchase Contracts or the rights
of the Holders of Units with respect to the Purchase Contracts or (B) modifying
in any manner the other terms of this Agreement or the other rights of Holders
of Units; provided, however, that no such supplemental agreement shall (i)
without the consent of the Holder of each Outstanding Purchase Contract affected
thereby in the case of clauses (1), (2) and (3) below and (ii) without the
consent of the Holder of each Unit affected thereby, in the case of clauses (4)
and (5) below:

          (1) impair the right to institute suit for the enforcement of any
     Purchase Contract, or

          (2) reduce the percentage of the Purchase Contracts constituting a
     part of any series of Units Outstanding, the consent of whose Holders is
     required for any modification or amendment of the provisions of this
     Agreement relating to the Purchase Contracts or for any waiver of any
     Purchase Contract Defaults hereunder and their consequences provided for in
     this Agreement relating to the Purchase Contracts, or

          (3) modify or affect (in any manner materially adverse to the Holders)
     the Holders' rights and obligations under the Purchase Contracts; or

          (4) modify or affect (in any manner materially adverse to the Holders)
     the terms of this Agreement or such Holder's Units (other than the terms
     referred to in clause (1), (2) or (3) above); or

          (5) reduce the percentage of Holders of Units whose consent is
     required for any modification or amendment of the provisions of this
     Agreement (other than the terms referred to in clause (1), (2) or (3)
     above).

     It shall not be necessary for any Act of Holders under this Section to
approve the particular form of any proposed supplemental agreement, but it shall
be sufficient if such Act shall approve the substance thereof.

     SECTION 7.03. Execution of Supplemental Agreements. In exchange for
accepting the additional agencies or duties created by, any supplemental
agreement permitted

                                       51
<PAGE>

by this Article or the modifications thereby of the agencies or duties created
by this Agreement, each of the Agent and the Collateral Agent shall be entitled
to receive and (subject to Sections 6.01 and 5.03, respectively) shall be fully
protected in relying upon, an opinion of Counsel stating that the execution of
such supplemental agreement is authorized or permitted by this Agreement. Each
of the Agent and the Collateral Agent may, but shall not be obligated to, enter
into any such supplemental agreement that affects the Agent's or the Collateral
Agent's rights, duties or immunities under this Agreement or otherwise.

     SECTION 7.04. Effect of Supplemental Agreements. Upon the execution of any
supplemental agreement under this Article, this Agreement shall be modified in
accordance therewith, and such supplemental agreement shall form a part of this
Agreement for all purposes; and every Holder of Units, theretofore or thereafter
authenticated, countersigned, executed and delivered hereunder and/or under the
Indenture shall be bound thereby.

     SECTION 7.05. Reference to Supplemental Agreements. Unit Certificates, Debt
Securities and Purchase Contracts authenticated, countersigned, executed and
delivered after the execution of any supplemental agreement pursuant to this
Article may, and shall if required by the Agent, bear a notation in form
approved by the Agent as to any matter provided for in such supplemental
agreement. If the Corporation shall so determine, new Unit Certificates, Debt
Securities and Purchase Contracts so modified as to conform, in the opinion of
the Agent, and the Corporation, to any such supplemental agreement may be
prepared and executed by the Corporation and authenticated, executed,
countersigned and delivered by the Trustee and the Agent, as applicable, in
exchange for Outstanding Unit Certificates, Debt Securities and Purchase
Contracts.

                                    ARTICLE 8
                    CONSOLIDATION, MERGER, SALE OR CONVEYANCE

     SECTION 8.01. Covenant Not to Merge, Consolidate, Sell or Convey Property
Except Under Certain Conditions. The Corporation covenants that it will not
merge or consolidate with any other corporation or sell, convey or lease all or
substantially all of its assets to any Person, firm or corporation, except that
the Corporation may merge or consolidate with, or sell, convey or lease all or
substantially all of its assets to, any other corporation, provided that (i) the
Corporation shall be the continuing corporation, or the successor corporation
(if other than the Corporation) shall be a corporation organized and existing
under the laws of the United States of America or a state thereof or the
District of Columbia and such corporation shall assume the due and punctual
performance and observance of all of the covenants and conditions of this
Agreement to be performed by the Corporation by supplemental agreement in form
satisfactory to the Agent and the Collateral Agent, executed and delivered to
the Agent and the Collateral Agent by such corporation, and (ii) neither the
Corporation nor such successor corporation immediately after such merger or
consolidation, or such sale, conveyance or lease shall be in default in the
performance of any such covenant or condition.

                                       52
<PAGE>

     SECTION 8.02. Rights and Duties of Successor Corporation. In case of any
such consolidation, merger, sale or conveyance and upon any such assumption by
the successor corporation, such successor corporation shall succeed to and be
substituted for the Corporation with the same effect as if it had been named
herein as the Corporation. Such successor corporation thereupon may cause to be
signed, and may issue (subject to the provisions of the Indenture) either in its
own name or in the name of Wells Fargo & Company any or all of the Unit
Certificates, Debt Securities and Purchase Contracts issuable hereunder which
theretofore shall not have been signed by the Corporation and delivered to the
Agent; and, upon the order of such successor corporation, instead of the
Corporation, and subject to all the terms, conditions and limitations in this
Agreement prescribed, the Trustee and the Agent shall authenticate, countersign,
execute and deliver, as applicable, any Unit Certificates, Debt Securities and
Purchase Contracts that previously shall have been signed and delivered by the
officers of the Corporation to the Trustee and the Agent for authentication,
execution and countersignature, and any Unit Certificates, Debt Securities and
Purchase Contracts evidencing Units which such successor corporation thereafter
shall cause to be signed and delivered to the Trustee and the Agent for such
purpose. All the Purchase Contracts so issued shall in all respects have the
same legal rank and benefit under this Agreement as the Purchase Contracts
theretofore or thereafter issued in accordance with the terms of this Agreement
as though all of such Purchase Contracts had been issued at the date of the
execution hereof.

     In case of any such consolidation, merger, sale, conveyance or lease such
change in phraseology and form (but not in substance) may be made in the Unit
Certificates and Purchase Contracts thereafter to be issued as may be
appropriate.

     SECTION 8.03. Opinion of Counsel to Agent. The Agent and the Collateral
Agent, subject to Sections 6.01 and 6.03 and Sections 5.03 and 5.05,
respectively, may receive an Opinion of Counsel as conclusive evidence that any
such consolidation, merger, sale, conveyance or lease, and any such assumption,
complies with the provisions of this Article.

                                    ARTICLE 9
                                    COVENANTS

     SECTION 9.01. Performance under Purchase Contracts. The Corporation
covenants and agrees for the benefit of the Holders of the Units that it will
duly and punctually perform its obligations under the Purchase Contracts in
accordance with the terms of the Purchase Contracts and this Agreement.

     SECTION 9.02. Maintenance of Office or Agency. So long as Units or Purchase
Contracts are authorized for issuance pursuant to this Agreement or are
Outstanding hereunder, the Corporation will maintain in the City of Minneapolis,
an office or agency where Registered Units may be presented or surrendered for
payment or acquisition of Purchase Contract Property or where Purchase Contract
Property or other property may be tendered for delivery, where Registered Units
may be surrendered for registration of transfer

                                       53
<PAGE>

or exchange and where notices and demands to or upon the Corporation in respect
of Units and this Agreement may be served. The Corporation hereby initially
designates Wells Fargo Bank Minnesota, N.A. as its office or agency in the City
of Minneapolis, for each of said purposes. The Corporation will give prompt
written notice to the Agent of the location, and any change in the location, of
such office or agency. The Corporation will maintain one or more offices or
agencies in a city or cities located outside the United States (including any
city in which such an agency is required to be maintained under the rules of any
stock exchange on which the Units of such series, or the Securities constituting
such Units, are listed) where the Unregistered Units, if any, of each series may
be presented or surrendered for payment or acquisition of Purchase Contract
Property or where Purchase Contract Property or other property may be tendered
for delivery. No payment or delivery of Purchase Contract Property on any
Unregistered Unit will be made upon presentation of such Unregistered Unit at an
agency of the Corporation within the United States nor will any payment or
delivery of Purchase Contract Property be made by transfer to an account in, or
by mail to an address in, the United States unless pursuant to applicable United
States laws and regulations then in effect such payment can be made without
adverse tax consequences to the Corporation. Notwithstanding the foregoing,
payments in U.S. dollars of Unregistered Units of any series appertaining
thereto which are payable in Dollars may be made at an agency of the Corporation
maintained in the City of Minneapolis if such payment in dollars at each agency
maintained by the Corporation outside the United States for payment on such
Unregistered Units is illegal or is effectively precluded by exchange controls
or other similar restrictions. If at any time the Corporation shall fail to
maintain any such required office or agency or shall fail to furnish the Agent
with the name and address thereof, such presentations, surrenders, notices and
demands may be made or served at the Corporate Trust Office of the Agent, and
the Corporation hereby appoints the Agent as its agent to receive all such
presentations, surrenders, notices and demands.

     The Corporation may also from time to time designate one or more other
offices or agencies where Debt Securities, Purchase Contracts and Unit
Certificates may be presented or surrendered for any or all such purposes and
may from time to time rescind such designations; provided, however, that no such
designation or rescission shall in any manner relieve the Corporation of its
obligations to maintain offices or agencies provided for in this Section. The
Corporation will give prompt written notice to the Agent of any such designation
or rescission and of any change in the location of any such other office or
agency.

     SECTION 9.03. Money for Payments to Be Held in Trust. Any money or other
property deposited with the Agent, in trust for payment with respect to any
Unit, remaining unclaimed for two years after such payment has become due and
payable shall be paid to the Corporation on request of the Corporation pursuant
to an Officers' Certificate; and the Holder of such Unit shall thereafter, as an
unsecured general creditor, look only to the Corporation for payment thereof,
and all liability of the Agent with respect to such trust money or other
property shall thereupon cease.

                                       54
<PAGE>

     In the event that (i) the Corporation has delivered Purchase Contract
Property (or the cash value thereof) to the Agent against tender of payment for
such Purchase Contract Property (or, in the case of Purchase Contracts calling
for the purchase of Purchase Contract Property by the Corporation, the
Corporation has tendered payment) and (ii) a Holder of a Unit Certificate fails
to present and surrender the appropriate Unit Certificate to the Agent, the
Purchase Contract Property or the cash value thereof or the Corporation's
payment for Purchase Contract Property deliverable upon settlement of the
Purchase Contracts or evidenced by such Unit Certificate, together with any
distributions thereon (and, if an effective Cash Settlement with respect to the
obligations under such Purchase Contracts has been made, payments in respect of
principal of any Debt Securities that are part of such Units), shall be held by
the Agent, in trust, for the benefit of such Holder, until such Unit Certificate
is presented and surrendered or such Holder delivers to the Agent, the Trustee,
and the Corporation (A) evidence to their satisfaction that such certificate has
been destroyed, lost or stolen and (B) such security or indemnity as may be
required by them to hold each of them and any agent of any of them harmless. In
the event such Unit Certificate is not presented and surrendered or such Holder
does not satisfy the applicable conditions specified in the preceding sentence
on or prior to the date two years after the date of settlement of the related
Purchase Contract any distributions received by the Agent with respect to the
Purchase Contract Property delivered in respect of the Unit Certificates shall
be paid to the Corporation, on the request of the Corporation pursuant to an
Officers' Certificate, and the Holders of such Unit shall thereafter, as
unsecured general creditors, look only to the Corporation for payment thereof
and all liability of the Agent with respect to such trust assets shall
thereafter cease.

     SECTION 9.04. Statements of Officers of the Corporation as to Default. The
Corporation will deliver to the Agent, on or before _________________ in each
year, an Officers' Certificate stating whether or not to the best knowledge of
the signers thereof the Corporation is in default in the performance and
observance of any of the terms, provisions and conditions hereof or of any
Purchase Contracts, and, if the Corporation shall be in default, specifying all
such defaults and the nature and status thereof of which they may have
knowledge.

                                   ARTICLE 10
                                   REDEMPTIONS

     SECTION 10.01. Optional Redemption of Purchase Contracts; Redemption Upon
Redemption of Debt Securities. If this Article is specified as applicable
pursuant to Section 3.02 in connection with the issuance of the Purchase
Contracts of a series, any or all of such Purchase Contracts may be redeemed at
the option of the Corporation, or from time to time in part, on such date or
dates and at a redemption price per Purchase Contract as shall be specified
pursuant to Section 3.02; provided that no redemption shall result in there
being more than zero but fewer than the minimum amount of Unsettled Purchase
Contracts that may remain Outstanding after such redemption, as specified
pursuant to Section 3.02.

                                       55
<PAGE>

     Unless otherwise specified pursuant to Section 2.03, in the event that the
Corporation shall redeem any Debt Security constituting part of a Unit of any
series pursuant to the provisions of the Indenture or such Debt Security, the
Corporation shall redeem any Purchase Contract on the redemption date of such
related Debt Security.

     SECTION 10.02. Notice of Redemption; Partial Redemptions. Unless otherwise
specified pursuant to Section 3.02, the Corporation or, upon Issuer Order of the
Corporation, the Agent in the name and at the expense of the Corporation, shall
give notice of redemption to the Holders of Purchase Contracts in the manner and
to the extent provided in Section 11.06, at least 30 days and not more than 60
days prior to the date fixed for redemption. Any notice which is given in the
manner herein provided shall be conclusively presumed to have been duly given,
whether or not the Holder receives the notice. Failure to give notice by mail,
or any defect in the notice to the Holder of any Purchase Contract, shall not
affect the validity of the proceedings for the redemption of any other Purchase
Contract.

     The notice of redemption to each Holder of Registered Purchase Contracts
shall specify the number of Registered Purchase Contracts held by such Holder to
be redeemed, the date fixed for redemption, the redemption price, the place or
places of payment and that payment will be made upon presentation and surrender
of Unit Certificates with respect to such Registered Purchase Contracts
evidenced by Unit Certificates.

     The Corporation's obligation to provide funds for redemption shall be
deemed fulfilled if, on or before 12:00 noon, local time in the place of
payment, on the redemption date specified in the notice of redemption given as
provided in this Section, the Corporation shall deposit with the Agent or with
one or more paying agents an amount of money sufficient to redeem on the
redemption date all the Purchase Contracts called for redemption at the
appropriate redemption price, together with irrevocable instructions and
authorization that such funds be applied to the redemption of the Purchase
Contracts called for redemption upon surrender of Unit Certificates representing
such Purchase Contracts, properly endorsed and assigned for transfer, in
accordance with this Article.

     The Corporation will deliver to the Agent at least 15 days prior to the
mailing of the notice of redemption an Officers' Certificate stating the
aggregate number of Purchase Contracts to be redeemed on such date and that the
Corporation has complied with the provisions of Section 10.01 and of said
Purchase Contracts subject to said redemption.

     If fewer than all the Purchase Contracts are to be redeemed, the Agent,
prior to the mailing of the redemption notice, shall select the Purchase
Contracts to be redeemed on a pro rata basis, by lot or by such other means as
shall be acceptable to the Agent. Appropriate adjustment shall be made to
prevent the fractional redemption of Purchase Contracts, such that Purchase
Contracts are redeemed only in whole and not in part.

     The Agent shall promptly notify the Corporation in writing of the Purchase
Contracts so selected for redemption.

                                       56
<PAGE>

     SECTION 10.03. Payment of Purchase Contracts Called for Redemption. If
notice of redemption has been given as above provided, (i) the Purchase
Contracts specified in such notice shall become due and payable on the date and
at the place stated in such notice at the applicable redemption price, and (ii)
on and after the date fixed for redemption (unless the Corporation shall default
in the payment of such Purchase Contracts at the redemption price) such Purchase
Contracts shall cease from and after the date fixed for redemption to be
entitled to any benefit under this Agreement, the Holders thereof shall have no
right or obligation in respect of such Purchase Contracts except the right to
receive the redemption price thereof and the Purchase Contracts shall terminate
and shall no longer be deemed to be Outstanding.

     If so specified pursuant to Section 3.02, on presentation and surrender of
Unit Certificates representing such Purchase Contracts, properly endorsed and
assigned for transfer, at a place of payment specified in said notice, said
Purchase Contracts shall be paid and redeemed by the Corporation at the
applicable redemption price. Following such redemption, the Unit Certificates
evidencing such Closed Purchase Contracts shall be cancelled in accordance with
Section 2.11. In the case of (i) Definitive Units, certificates evidencing any
Outstanding Debt Securities relating to such redeemed Purchase Contracts shall
be executed, authenticated and delivered in accordance with the terms of the
Indenture and (ii) Global Units, if a Global Debt Security not constituting part
of a Global Unit has not previously been issued by the Corporation, a second
Global Debenture evidencing any Outstanding Debt Security relating to such
redeemed Purchase Contracts shall be executed, authenticated and delivered in
accordance with the Indenture. If a second Global Debt Security referred to in
clause (ii) of the immediately preceding sentence has already been issued, the
Agent shall note thereon an appropriate increase in the number of Debt
Securities represented by such Global Debt Security. Any interest accrued on
funds deposited with the Agent or any Paying Agent in connection with this
Article Ten shall be paid to the Corporation from time to time and the Holders
of Purchase Contracts (whether or not such Purchase Contracts are to be redeemed
with such funds) shall have no claim to any such interest. Any funds deposited
and unclaimed at the end of two years from any redemption date shall be repaid
or released to the Corporation, on the request of the Corporation pursuant to an
Officers' Certificate, after which the Holder(s) of Purchase Contracts so called
for redemption shall look only to the Corporation for payment of the redemption
price, without any interest thereon and all liability of the Agent with respect
to the redemption price shall cease.

     SECTION 10.04. Exclusion of Certain Purchase Contracts from Eligibility for
Selection for Redemption. Purchase Contracts shall be excluded from eligibility
for selection for a partial redemption if they are identified by registration
and certificate number in an Officers' Certificate delivered by the Corporation
to the Agent at least 10 days prior to the date of the mailing of a notice of
redemption as being owned of record and beneficially by, and not pledged or
hypothecated by (a) the Corporation or (b) an Affiliate of the Corporation.
Purchase Contracts shall also be excluded from eligibility for selection for a
partial redemption if they are the subject of an Acceleration Notice.

                                       57
<PAGE>

                                   ARTICLE 11
                            MISCELLANEOUS PROVISIONS

     SECTION 11.01. Incorporators, Stockholders, Officers and Directors of the
Corporation Immune from Liability. No recourse under or upon any obligation,
covenant or agreement contained in this Agreement, or in any Debt Security or
any Purchase Contract, or because of any indebtedness evidenced thereby, shall
be had against any incorporator, or against any past, present or future
stockholder, officer, attorney-in-fact or director, as such, of the Corporation
or of any successor corporation, either directly or through the Corporation or
any successor corporation, under any rule of law, statute or constitutional
provision or by the enforcement of any assessment or penalty or by any legal or
equitable proceeding or otherwise, all such liability being expressly waived and
released by the acceptance of the Units by the Holders thereof and as part of
the consideration for the issue thereof, provided that nothing in this Article
shall impair the obligations, covenants and agreements of the Corporation
contained in this Agreement and in any Debt Securities or Purchase Contracts
constituting a part of the Units of any series.

     SECTION 11.02. Compliance Certificates and Opinions. Except as otherwise
expressly provided by this Agreement, upon any application or request by the
Corporation to the Agent or Collateral Agent to take any action under any
provision of this Agreement, the Corporation, as applicable, shall furnish to
the Agent or Collateral Agent an Officers' Certificate stating that all
conditions precedent, if any, provided for in this Agreement relating to the
proposed action have been complied with and an Opinion of Counsel stating that,
in the opinion of such counsel, all such conditions precedent, if any, have been
complied with, except that in the case of any such application or request as to
which the furnishing of such documents is specifically required by any provision
of this Agreement relating to such particular application or request, no
additional certificate or opinion need be furnished.

     Every certificate or opinion with respect to compliance with a condition or
covenant provided for in this Agreement shall include:

          (i) a statement that each individual signing such certificate or
     opinion has reached such covenant or condition and the definitions herein
     relating thereto;

          (ii) a brief statement as to the nature and scope of the examination
     or investigation upon which the statements or opinions contained in such
     certificate or opinion are based;

          (iii) a statement that, in the opinion of each such individual, he has
     made such examination or investigation as is necessary to enable him to
     express an informed opinion as to whether or not such covenant or condition
     has been complied with; and

                                       58
<PAGE>

          (iv) a statement as to whether, in the opinion of each such
     individual, such condition or covenant has been complied with.

     SECTION 11.03. Form of Documents Delivered to Agent or Collateral Agent. In
any case where several matters are required to be certified by, or covered by an
opinion of, any specified Person, it is not necessary that all such matters be
certified by, or covered by the opinion of, only one such Person, or that they
be so certified or covered by only one document, but one such Person may certify
or give an opinion with respect to some matters and one or more other such
Persons as to other matters, and any such Person may certify or give an opinion
as to such matters in one or several documents.

     Any certificate, statement or opinion of an officer or counsel of or for
the Corporation may be based, insofar as it relates to legal matters, upon a
certificate or opinion of, or representations by, counsel, unless such officer
knows, or in the exercise of reasonable care should know, that the certificate
or opinion or representations with respect to the matters upon which his
certificate, statement or opinion is based are erroneous. Any such certificate,
statement or opinion may be based, insofar as it relates to factual matters,
upon a certificate, statement or opinion of, or representations by, an officer
or officers of the Corporation, as applicable, stating that the information with
respect to such factual matters is in the possession of the Corporation, unless
such counsel knows, or in the exercise of reasonable care should know, that the
certificate or opinion or representations with respect to such matters are
erroneous.

     Where any Person is required to make, give or execute two or more
applications, requests, consents, certificates, statements, opinions or other
instruments under this Agreement, they may, but need not, be consolidated and
form one instrument.

     SECTION 11.04. Acts of Holders. (a) Any request, demand, authorization,
direction, notice, consent, waiver or other action provided by this Agreement to
be given or taken by Holders may be embodied in and evidenced by one or more
instruments of substantially similar tenor signed by such Holders in person or
by an agent duly appointed in writing and, except as herein otherwise expressly
provided, such action shall become effective when such instrument or instruments
are delivered to the Agent and, where it is hereby expressly required, to the
Corporation. Such instrument or instruments (and the action embodied therein and
evidenced thereby) are herein sometimes referred to as the "Act" of the Holders
signing such instrument or instruments. Proof of execution of any such
instrument or of a writing appointing any such agent shall be sufficient for any
purpose of this Agreement and (subject to Section 6.01) conclusive in favor of
the Agent and the Corporation, if made in the manner provided in this Section.

     (b) The fact and date of the execution by any Person of any such instrument
or writing may be proved in any manner that the Agent deems sufficient.

     (c) Subject to Section 2.03(a)(vii), the ownership (i) of Registered Units
of any series shall be proved by the Purchase Contract Register for such series,
with respect to any Purchase Contracts constituting a part of such Units and the
Debt Security Register for

                                       59
<PAGE>

such series, with respect to any Debt Securities constituting a part of such
Units, and (ii) of Unregistered Units shall be proved by possession of the Unit
Certificates evidencing such Units or by the appropriate records of the
depositary for such units.

     (d) Any request, demand, authorization, direction, notice, consent, waiver
or other Act of the Holder of any Unit Certificate shall bind every future
Holder of the same Unit Certificate and the Holder of every Unit Certificate
issued upon the registration of transfer thereof or in exchange therefor or in
lieu thereof with respect to anything done, omitted or suffered to be done by
the Agent or the Corporation in reliance thereon, whether or not notation of
such action is made upon such Unit Certificate.

     (e) The Corporation may set a record date for purposes of determining the
identity of Holders of Units entitled to consent to any action by consent
authorized or permitted hereby. Unless otherwise specified pursuant to Section
2.03, such record date shall be the later of 30 days prior to the first
solicitation of such consent or the date of the most recent list of Holders of
Units furnished to the Agent, pursuant hereto.

     SECTION 11.05. Notices, Etc. Any request, demand, authorization, direction,
notice, consent, waiver or Act of Holders or other document provided or
permitted by this Agreement to be made upon, given or furnished to, or filed
with,

     (a) the Agent or the Collateral Agent, as the case may be, by any Holder or
by the Corporation shall be sufficient for every purpose hereunder (unless
otherwise herein expressly provided) if made, given, furnished or filed in
writing and personally delivered or mailed, first-class postage prepaid, to the
Agent at its Corporate Trust Office or at any other address previously furnished
in writing by the Agent or the Collateral Agent, as the case may be, to the
Holders and the Corporation, or

     (b) the Corporation by the Agent, the Collateral Agent or by any Holder
shall be sufficient for every purpose hereunder (unless otherwise herein
expressly provided) if made, given, furnished or filed in writing and personally
delivered or mailed, first-class postage prepaid, addressed to the Corporation
at 420 Montgomery Street, San Francisco, California 94104, MAC # A0101-121,
Attention: Chief Financial Officer, or at any other address previously furnished
in writing to the Agent and the Collateral Agent by the Corporation.

     SECTION 11.06. Notices to Holders; Waiver. Where this Agreement provides
for notice to Holders of Registered Securities or Registered Units of any event,
such notice shall be sufficiently given (unless otherwise herein expressly
provided or as provided in the Letter of Representations) if in writing and
mailed, first-class postage prepaid, to each such Holder affected by such event,
at such Holders address as it appears in the relevant Security Registers, with
respect to the Securities constituting such Unit, not later than the latest
date, and not earlier than the earliest date, prescribed for the giving of such
notice. In any case where notice to Holders is given by mail, neither the
failure to mail such notice, nor any defect in any notice so mailed to any
particular Holder shall affect the sufficiency of such notice with respect to
other Holders. Where this Agreement provides for notice in any

                                       60
<PAGE>

manner, such notice may be waived in writing by the Person entitled to receive
such notice, either before or after the event, and such waiver shall be the
equivalent of such notice. Waivers of notice by Holders shall be filed with the
Agent, but such filing shall not be a condition precedent to the validity of any
action taken in reliance upon such waiver.

     In case by reason of the suspension of regular mail service or by reason of
any other cause it shall be impracticable to give such notice by mail, then such
notification as shall be made with the approval of the Agent shall constitute a
sufficient notification for every purpose hereunder.

     Where this Agreement provides for notice to Holders of Unregistered
Securities or Unregistered Units of any event, such notice shall be sufficiently
given (unless otherwise specified herein or pursuant to Section 2.03 or 3.02) by
publication in a newspaper in the English language of general circulation in the
Borough of Manhattan, The City of New York, and in The City of London or, if
publication in London is not practical, in an English language newspaper with
general circulation in Western Europe. Such notices will be deemed to have been
given on the date of such publication, or if published in such newspapers on
different dates, on the date of the first such publication.

     SECTION 11.07. Effect of Headings and Table of Contents. The Article and
Section headings herein and the Table of Contents are for convenience only and
shall not affect the construction hereof.

     SECTION 11.08. Successors and Assigns. All covenants and agreements in this
Agreement, the Units, the Purchase Contracts and the Unit Certificates by the
Corporation shall bind its successors and assigns, whether so expressed or not.

     SECTION 11.09. Separability Clause. In case any provision in this Agreement
or in the Units, Unit Certificates or the Purchase Contracts shall be invalid,
illegal or unenforceable, the validity, legality and enforceability of the
remaining provisions hereof and thereof shall not in any way be affected or
impaired thereby.

     SECTION 11.10. Benefits of Agreement. Nothing in this Agreement or in the
Units, Unit Certificates, the Indenture, the Debt Securities or the Purchase
Contracts, express or implied, shall give to any Person, other than the parties
hereto and their successors hereunder, any benefits or any legal or equitable
right, remedy or claim under this Agreement. The Holders from time to time shall
be parties to this Agreement and shall be bound by all of the terms and
conditions hereof and of the Indenture, the Units, the Debt Securities and the
Purchase Contracts evidenced by the Units, by their acceptance of delivery of
such Units.

     SECTION 11.11. Governing Law. This Agreement, the Units, the Unit
Certificates and the Purchase Contracts shall be governed and construed in
accordance with the laws of the State of New York.

                                       61
<PAGE>

     SECTION 11.12. Legal Holidays. Unless otherwise specified pursuant to
Section 3.02, in any case where any Settlement Date shall not be a Business Day,
then (notwithstanding any other provisions of this Agreement or the Purchase
Contracts) the Purchase Contracts shall not be performed on such date, but shall
be performed on the next succeeding Business Day with the same force and effect
as if performed on such Settlement Date; provided that no interest or other
amounts shall accrue or be payable by the Corporation or any Holder for the
period from and after any such Settlement Date.

     SECTION 11.13. Counterparts. This Agreement may be executed in any number
of counterparts by the parties hereto on separate counterparts, each of which,
when so executed and delivered, shall be deemed an original, but all such
counterparts shall together constitute one and the same instrument.

     SECTION 11.14. Appointment of Certain Agents. (a) Pursuant to Section 2.03
hereof, the Corporation may, in connection with any series of Purchase Contracts
appoint ____________________________ or any other Person as Calculation Agent to
make any calculations as may be required pursuant to the terms of any such
series of Purchase Contracts. Any such Calculation Agent shall act as an
independent expert and, unless otherwise provided by this Agreement, its
calculations and determinations under this Agreement shall, absent manifest
error, be final and binding on the Corporation, the Agent and the Holders. Any
such calculations will be made available to the Holders for inspection at the
Agent's Office.

     (b) Unless otherwise specified pursuant to Section 2.03, the Corporation
hereby appoints __________________ as the Paying Agent under the Indenture with
respect to each Debt Security comprised by any Unit issued hereunder.

     SECTION 11.15. Inspection of Agreement. A copy of this Agreement shall be
available at all reasonable times during normal business hours at the Corporate
Trust Office of the Agent for inspection by any Holder.

                                       62
<PAGE>

     IN WITNESS WHEREOF, the Corporation, the Agent, the Collateral Agent, the
Trustee and the Paying Agent have duly executed this Agreement as of the day and
year first above set forth, and all Holders of Units shall become parties hereto
by and upon acceptance by them of delivery of Units issued in accordance with
the terms hereof.

                                       WELLS FARGO & COMPANY

                                       By:
                                           -------------------------------------
                                           Name:
                                           Title:

                                       [                                       ]
                                        --------------------------------------
                                           as Agent

                                       By:
                                           -------------------------------------
                                           Name:
                                           Title:

                                       [                                       ]
                                        --------------------------------------
                                           as Collateral Agent

                                       By:
                                           -------------------------------------
                                           Name:
                                           Title:

                                       [                                       ]
                                        --------------------------------------
                                           as Trustee under the Indenture

                                       By:
                                           -------------------------------------
                                           Name:
                                           Title:

                                       [                                       ]
                                        --------------------------------------
                                           as Paying Agent under the Indenture

                                       By:
                                           -------------------------------------
                                           Name:
                                           Title:

                                       63
<PAGE>

                                                                       EXHIBIT A

                           [[FORM OF UNIT CERTIFICATE]

                                     [FACE]

     [IF THE UNIT CERTIFICATE IS TO BE A GLOBAL REGISTERED UNIT CERTIFICATE,
INSERT--This Unit Certificate is a global Unit Certificate within the meaning of
the Unit Agreement hereinafter referred to and is registered in the name of The
Depository Trust Company (the "Depositary") or a nominee of the Depositary.
Unless and until it is exchanged in whole or in part for Units in definitive
registered form, this Unit Certificate may not be transferred except as a whole
by the Depositary to a nominee of the Depositary or by a nominee of the
Depositary to the Depositary or another nominee of the Depositary or by the
Depositary or any such nominee to a successor Depositary or a nominee of such
successor Depositary).

     Unless this Unit Certificate is presented by an authorized representative
of the Depositary (55 Water Street, New York) to Wells Fargo & Company or its
agent for registration of transfer, exchange or payment, and any Unit issued is
registered in the name of Cede & Co. or such other name as requested by an
authorized representative of the Depositary and any payment hereon is made to
Cede & Co. or such other entity as is requested by an authorized representative
of the Depositary, ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR
OTHERWISE BY A PERSON IS WRONGFUL inasmuch as the registered owner hereof, Cede
& Co., has an interest herein.]

                                      A-1
<PAGE>

                                UNIT CERTIFICATE

                 (issuable in integral multiples of whole Units)

             Evidencing the Ownership of, or Rights and Obligations
                       of the Holder Under, the Securities
                                 Specified Below

              [Specify Securities Constituting Part of these Units]

CUSIP No. _____
Certificate No. _____                        Number of Units [Up To]/1/_________

     This Unit Certificate certifies that _______________________________ (the
"Holder"), or [registered assigns]/2/, is the [registered]/2/ owner of [ ( )
Units]/3/ [the number of Units specified in Schedule A hereto.]/1/

     Each Unit represents ownership by the Holder of [specify Securities
constituting parts of the Unit] [, subject to the pledge of such Debt Securities
by such Holder pursuant to the Unit Agreement (the "Unit Agreement") dated as of
_________, 20___ among the Corporation, ___________________________, as Agent
and as Collateral Agent, and ____________________ as Trustee and
____________________ as Paying Agent under the Indenture referred to therein and
the Holders from time to time of the Units described therein. Pursuant to the
Unit Agreement, the Debt Securities constituting part of the Units evidenced
hereby have been pledged to the Collateral Agent to secure the obligations of
the Holder under the Purchase Contract constituting part of such Units.]/4/

     [For so long as the Purchase Contract underlying each Unit represented
hereby remains in effect such Unit shall not be separable into its constituent
parts and the rights and obligations of the Holder of such Unit in respect of
such constituent parts may be transferred and exchanged only as a Unit.]/5/

                       [Designated Security Register:]/6/

                             [Other Terms of Units:]

                 [INSERT APPROPRIATE DEBT SECURITY CERTIFICATE]

----------

1    Insert in Global Unit Certificates

2    Insert in Registered Units

3    Insert in Definitive Unit Certificates

                                      A-2
<PAGE>

4    Insert in Registered Units consisting of Non-Separable Debt Securities and
     Purchase Contracts

5    Insert in non-separable Units.

6    Insert in non-separable registered Units

--------------------------------------------------------------------------------

Reference is hereby made to the further provisions of this certificate set forth
on the succeeding pages hereof, which further provisions shall for all purposes
have the same effect as if set forth at this place.

--------------------------------------------------------------------------------

                                      A-3
<PAGE>

                           [FORM OF PURCHASE CONTRACT
                  CONTEMPLATING SALE BY WELLS FARGO & COMPANY]

                              WELLS FARGO & COMPANY

                   [Insert Designation of Purchase Contracts]

                              PURCHASE CONTRACT(S)

                           Purchase Contracts between
                              Wells Fargo & Company
                                       and

                         -----------------------------

                             or registered assigns,
                       as holder hereunder (the "Holder")

     All capitalized terms used but not defined herein that are defined in the
Unit Agreement (described below) have the meanings set forth therein, and if not
defined therein, have the meaning set forth below.

                         -----------------------------

                   Purchase Contract Property:
                   Quantity:
                   Purchase Price Settlement Date:
                   Payment Location:
                   Method of Settlement:
                   Currency of Settlement Payment:
                   Authorized Number of Purchase Contracts:
                   Aggregate Purchase Price:
                   Contract Fees:
                   Corporation Acceleration:
                   Holder's Acceleration:
                   Redemption Provisions:
                   Other Terms:
================================================================================

                                      A-4
<PAGE>

     Subject to the conditions hereinafter set forth, the Holder agrees to
purchase and Wells Fargo & Company, a corporation duly incorporated and existing
under the laws of the State of Delaware (the "Corporation"), agrees to sell,
subject to the terms of the Unit Agreement referred to below and as set forth
herein, on the Settlement Date, the Quantity of Purchase Contract Property, for
the Purchase Price. The Purchase Contract(s) evidenced hereby shall not entitle
the Holder to purchase the Purchase Contract Property prior to the Settlement
Date.

     The Purchase Price for the Purchase Contract Property purchased pursuant to
the Purchase Contracts evidenced hereby shall be payable at the Payment Location
on the Settlement Date pursuant to the Method of Settlement in the Currency of
Settlement Payment.

     Each Purchase Contract evidenced hereby is one of a duly authorized issue
of not more than the Authorized Number of Purchase Contracts of the Corporation
relating to the purchase by Holders of not more than the Aggregate Quantity of
Purchase Contract Property issued under the Unit Agreement, dated as of
_____________ (the "Unit Agreement"), among the Corporation,
_______________________, as Agent (the "Agent") and as Collateral Agent
thereunder, and _______________________, as Trustee (the "Trustee") and
_______________________ Paying Agent under the Indenture referred to therein,
and the holders from time to time of Units, to which Unit Agreement and
supplemental agreements thereto reference is hereby made for a description of
the respective rights, limitations of rights, obligations, duties and immunities
thereunder of the Agent, the Collateral Agent, the Corporation and the Holders
and of the terms upon which the Purchase Contracts are, and are to be, executed,
countersigned, executed on behalf of the Holder and delivered.

     The Agent may require a Holder, among other things, to furnish appropriate
endorsements and transfer documents in connection with any transfer or exchange
of each Purchase Contract evidenced hereby. No service charge shall be required
for any such registration of transfer or exchange, but the Corporation and the
Agent may require payment of a sum sufficient to cover any tax or other
governmental charge imposed in connection with any registration of transfer or
exchange of Units.

     Upon registration of transfer of this Purchase Contract, the transferee
shall be bound (without the necessity of any other action on the part of such
transferee, except as may be required by the Agent pursuant to the Unit
Agreement), under the terms of the Unit Agreement and the Purchase Contracts
evidenced hereby and the transferor shall be released from the obligations under
the Purchase Contracts hereby. The Corporation covenants and agrees, and the
Holder, by his acceptance hereof, likewise covenants and agrees, to be bound by
the provisions of this paragraph.

     The extent to which, and the terms upon which, any cash or other property
(other than the Purchase Contract Property) is payable or deliverable with
respect to the

                                      A-5
<PAGE>

Purchase Contracts evidenced hereby is described above under "Contract Fees".
The extent to which, and the terms upon which, the Corporation may accelerate
the obligations of the Corporation and the Holders of the Purchase Contracts
evidenced hereby is described above under "Corporation Acceleration". The extent
to which, and the terms upon which, the Holders of such Purchase Contracts may
accelerate the obligations of the Corporation and the Holders of the Purchase
Contracts is described above under "Holders' Acceleration". The extent to which,
and the terms upon which, the Corporation may redeem the Purchase Contracts
evidenced hereby is described above under "Redemption Provisions".

     Subject to certain exceptions, the terms of the Purchase Contracts and the
provisions of the Unit Agreement may be amended with the consent of the affected
Holders of not less than a majority of the Purchase Contracts evidenced by all
Outstanding Units and certain Purchase Contract Defaults may be waived with the
consent of the Holders of a majority of the Purchase Contracts evidenced by all
Outstanding Units. Without the consent of any Holder of Units, the terms of the
Unit Agreement the Purchase Contracts may be amended to, among other things,
cure any ambiguity, to correct or supplement any provision in the Unit Agreement
or Purchase Contract to add to covenants of the Corporation, Collateral Agent or
Agent or to make any other provisions with respect to matters or questions
arising under the Unit Agreement or the Purchase Contracts that do not adversely
affect the interests of the Holders in any material respect.

     Holders of the Purchase Contracts may not enforce the Unit Agreement or
such Purchase Contracts except as provided in the Unit Agreement.

     Any incorporator, or past, present or future stockholder, officer,
attorney-in-fact or director, as such, of the Corporation shall not have any
liability for any obligations of the Corporation under the Purchase Contracts or
the Unit Agreement or for any claim based on, with respect to or by reason of
such obligations or their creation. The Holder by his acceptance hereof waives
and releases all such liability. The waiver and release are part of the
consideration for the issue of the Purchase Contracts.

     The Purchase Contracts shall for all purposes be governed by, and construed
in accordance with, the laws of the State of New York.

     Prior to due presentment of a Unit Certificate or Purchase Contract for
registration of transfer, the Corporation, the Trustee, the Agent and the
Collateral Agent, and any agent of the Corporation, the Trustee, the Agent and
the Collateral Agent may treat the Person in whose name this Purchase Contract
is registered as a party to the Purchase Contracts evidenced hereby for the
purpose of performance of such Purchase Contracts and for all other purposes
whatsoever, and neither the Corporation, the Trustee, the Agent and the
Collateral Agent nor any such agent shall be affected by notice to the contrary.

     The Holder, by his acceptance hereof, authorizes the Agent to execute the
Purchase Contracts evidenced hereby on his behalf, authorizes and directs the
Agent on his behalf to take such other action, and covenants and agrees to take
such other action, as may be necessary or appropriate, or as may be required by
the Agent, to effectuate the provisions

                                      A-6
<PAGE>

of the Unit Agreement relating to the purchase of the Purchase Contract Property
[and the pledge of the Debt Securities constituting part of the Unit of which
this Purchase Contract forms a part to the Collateral Agent on the Holders
behalf,]/7/ appoints the agent as his attorney-in-fact for any and all such
purposes, and agrees to be bound by the terms thereof.

     The Purchase Contracts shall not, prior to the performance thereof, entitle
the Holder to any of the rights of a holder of the Purchase Contract Property.

     No Purchase Contract evidenced hereby shall be valid or obligatory for any
purpose until countersigned and executed on behalf of the Holder by the Agent,
pursuant to the Unit Agreement.

----------

7    Insert in Registered Units consisting of Non-Separable Debt Securities and
     Purchase Contracts.

                                      A-7
<PAGE>

     IN WITNESS WHEREOF, Wells Fargo & Company has caused this instrument to be
duly executed.

                                       WELLS FARGO & COMPANY

                                       By:
                                           -------------------------------------
                                           Name:
                                           Title:
----------------------------------,
as Agent, and as attorney-in-fact
of the Holder hereof

By:
    ------------------------------
    Authorized Officer

Countersigned

----------------------------------,
as Agent

By:
    ------------------------------
    Authorized Officer

                                      A-8
<PAGE>

                           [FORM OF PURCHASE CONTRACT
                 CONTEMPLATING PURCHASE BY WELLS FARGO & COMPANY

                              WELLS FARGO & COMPANY

                              PURCHASE CONTRACT(S)

                           Purchase Contracts between
                              Wells Fargo & Company
                                       and

                         -----------------------------

                             or registered assigns,
                       as holder hereunder (the "Holder")

All capitalized terms used but not defined herein that are defined in the Unit
Agreement (described below) have the meanings set forth therein, and if not
defined therein, have the meaning set forth below.

================================================================================

      Purchase Contract Property:
      Quantity:
      Purchase Price:
      Settlement Date:
      Payment Location:
      Method of Settlement:
      Method of Computing Settlement Amount:
      Currency of Settlement Payment:
      Authorized Number of Purchase Contracts:
      Aggregate Purchase Price:
      Contract Fees:
      Corporation Acceleration:
      Holders' Acceleration

                                      A-9
<PAGE>

      Redemption Provisions:
      Other Terms:

     Subject to the conditions hereinafter set forth, the Holder agrees to sell
and Wells Fargo & Company, a corporation duly incorporated and existing under
the laws of the State of Delaware (the "Corporation"), agrees to purchase,
subject to the terms of the Unit Agreement referred to below and as set forth
herein, on the Settlement Date, the Quantity of Purchase Contract Property, for
the Purchase Price. The Purchase Contract(s) evidenced hereby shall not entitle
the Corporation to purchase the Purchase Contract Property, or the Holder to
receive the Purchase Price, prior to the Settlement Date.

     If so indicated under Method of Settlement above, the parties' obligations
under the Purchase Contracts evidenced hereby may be settled by payment of the
Settlement Amount by the Corporation or the Holder, as the case may be. The
Settlement Amount payable pursuant to the Purchase Contracts evidenced hereby,
as determined in accordance with the Method of Computing Settlement Amount,
shall be payable on the Settlement Date in the Currency of Settlement Payment
pursuant to the Method of Settlement at the Payment Location; provided that any
Settlement Amount payable by Holders pursuant to the Purchase Contracts
evidenced hereby may be deducted from the principal payment that may be payable
by the Corporation with respect to any Debt Securities comprised by the Units of
which such Purchase Contacts are a part.

     Each Purchase Contract evidenced hereby is one of a duly authorized issue
of not more than the Authorized Number of Purchase Contracts of the Corporation
issued under the Unit Agreement, dated as of ____________ (the "Unit
Agreement"), among the Corporation, __________________, as Agent (the "Agent")
and as Collateral Agent thereunder and ____________________, as Trustee (the
"Trustee") and ____________________, as Paying Agent under the Indenture
referred to therein, and the holders from time to time of Units, to which Unit
Agreement and supplemental agreements thereto reference is hereby made for a
description of the respective rights, limitations of rights, obligations, duties
and immunities thereunder of the Agent, the Corporation and the Holders and of
the terms upon which the Purchase Contracts are, and are to be, executed,
countersigned, executed on behalf of the Holder and delivered.

     The Agent may require a Holder, among other things, to furnish appropriate
endorsements and transfer documents in connection with any transfer or exchange
of each Purchase Contract evidenced hereby. No service charge shall be required
for any such registration of transfer or exchange, but the Corporation and the
Agent may require payment of a sum sufficient to cover any tax or other
governmental charge imposed in connection with any registration of transfer or
exchange of Units.

     Upon registration of transfer of this Purchase Contract, the transferee
shall be bound (without the necessity of any other action on the part of such
transferee, except as may

                                      A-10
<PAGE>

be required by the Agent pursuant to the Unit Agreement), under the terms of the
Unit Agreement and the Purchase Contracts evidenced hereby and the transferor
shall be released from the obligations under the Purchase Contracts hereby. The
Corporation covenants and agrees, and the Holder, by his acceptance hereof,
likewise covenants and agrees, to be bound by the provisions of this paragraph.

     The extent to which, and the terms upon which, any cash or other property
(other than the Purchase Contract Property) is payable or deliverable with
respect to the Purchase Contracts evidenced hereby is described above under
"Contract Fees". The extent to which, and the terms upon which, the Corporation
may accelerate the obligations of the Corporation and the Holders of the
Purchase Contracts evidenced hereby is described above under "Corporation
Acceleration". The extent to which, and the terms upon which, the Holders of
such Purchase Contracts may accelerate the obligations of the Corporation and
the Holders of the Purchase Contracts is described above under "Holders'
Acceleration". The extent to which, and the terms upon which, the Corporation
may redeem the Purchase Contracts evidenced hereby is described above under
"Redemption Provisions".

     Subject to certain exceptions, the terms of the Purchase Contracts and the
provisions of the Unit Agreement may be amended with the consent of the affected
Holders of not less than a majority of the Purchase Contracts evidenced by all
Outstanding Units and certain Purchase Contract Defaults may be waived with the
consent of the Holders of a majority of the Purchase Contracts evidenced by all
Outstanding Units. Without the consent of any Holder of Units, the terms of the
Unit Agreement or the Purchase Contracts may be amended to, among other things,
cure any ambiguity, to correct or supplement any provision in the Unit Agreement
or Purchase Contract, to add to the covenants of the Corporation, Collateral
Agent or Agent for the protection of the Holders, or to make any other
provisions with respect to matters or questions arising under the Unit Agreement
or the Purchase Contracts that do not adversely affect the interests of the
Holders in any material respect.

     Holders of the Purchase Contracts may not enforce the Unit Agreement or
such Purchase Contracts except as provided in the Unit Agreement.

     Any incorporator, or past, present or future stockholder, officer,
attorney-in-fact or director, as such, of the Corporation shall not have any
liability for any obligations of the Corporation under the Purchase Contracts or
the Unit Agreement or for any claim based on, with respect to or by reason of
such obligations or their creation. The Holder by his acceptance hereof waives
and releases all such liability. The waiver and release are part of the
consideration for the issue of the Purchase Contracts.

     The Purchase Contracts shall for all purposes be governed by, and construed
in accordance with, the laws of the State of New York.

     Prior to due presentment of a Unit Certificate or Purchase Contract for
registration of transfer, the Corporation, the Agent, the Trustee and the
Collateral Agent, and any agent of the Corporation, the Agent, the Trustee and
the Collateral Agent may treat the Person in whose name this Purchase Contract
is registered as a party to the Purchase

                                      A-11
<PAGE>

Contracts evidenced hereby for the purpose of performance of such Purchase
Contracts and for all other purposes whatsoever, and neither the Corporation,
the Agent, the Trustee and the Collateral Agent nor any such agent shall be
affected by notice to the contrary.

     The Holder, by his acceptance hereof, authorizes the Agent to execute the
Purchase Contracts evidenced hereby on his behalf, authorizes and directs the
Agent on his behalf to take such other action, and covenants and agrees to take
such other action, as may be necessary or appropriate, or as may be required by
the Agent, to effectuate the provisions of the Unit Agreement relating to the
purchase of the Purchase Contract Property [and the pledge of the Debt
Securities constituting part of the Unit of which this Purchase Contract forms a
part to the Collateral Agent on the Holder's behalf,]/8/ appoints the agent as
his attorney-in-fact for any and all such purposes, and agrees to be bound by
the terms thereof.

     No Purchase Contract evidenced hereby shall be valid or obligatory for any
purpose until countersigned and executed on behalf of the Holder by the Agent,
pursuant to the Unit Agreement.

----------

8    Insert in Registered Units consisting of Debt Securities and Purchase
     Contracts.

                                      A-12
<PAGE>

     IN WITNESS WHEREOF, Wells Fargo & Company has caused this instrument to be
duly executed.

                                       WELLS FARGO & COMPANY

                                       By:
                                           -------------------------------------
                                           Name:
                                           Title:
----------------------------------,
as Agent, and as attorney-in-fact
of the Holder hereof

By:
    ------------------------------
    Authorized Officer

Countersigned

----------------------------------,
as Agent

By:
    ------------------------------
    Authorized Officer

                                      A-13
<PAGE>

          [IF PURCHASE CONTRACT IS A GLOBAL PURCHASE CONTRACT, INSERT]

                                                                      SCHEDULE I

                                     GLOBAL
                                PURCHASE CONTRACT
                              SCHEDULE OF EXCHANGES

     The initial number of Purchase Contracts represented by this Global
Purchase Contract is _______________________________. In accordance with the
Unit Agreement pursuant to which this Global Purchase Contract has been issued,
the following (A) exchanges of [the number of Purchase Contracts indicated below
for a like number of Purchase Contracts represented by a Global Purchase
Contract that has been separated from a Unit (a "Separated Purchase Contract")]1
[the number of Purchase Contracts that had been represented by a Global Purchase
Contract that is part of a Unit (an "Attached Unit Purchase Contract") for a
like number of Purchase Contracts represented by this Purchase Contract]2 and
(B) settlements of the number of Purchase Contracts indicated below have been
made:

<TABLE>
<CAPTION>
                                                          Number of
                                                          Attached
                                                          Unit
                                                          Purchase
                                                          Contracts
                                                          Exchanged
                                                          for Purchase
                     Number             Reduced           Contracts         Increased                      Reduced
                     Exchanged          Number            represented       Number                         Number
                     for                Outstanding       by this           Outstanding     Number of      Outstanding
Date of              Separated          Following         Separated         Following       Purchase       Following
Exchange or          Purchase           Such              Purchase          Such            Contracts      Such
Settlement           Contract/1/        Exchange/1/       Contract/2/       Exchange        Settled        Settlement
---------------      -------------      -----------       --------------    -----------     -----------    -----------
<S>                  <C>                <C>               <C>               <C>             <C>            <C>

---------------      -------------      -----------       --------------    -----------     -----------    -----------

---------------      -------------      -----------       --------------    -----------     -----------    -----------

---------------      -------------      -----------       --------------    -----------     -----------    -----------

---------------      -------------      -----------       --------------    -----------     -----------    -----------

---------------      -------------      -----------       --------------    -----------     -----------    -----------
</TABLE>
----------

1    Applies only if this Purchase Contract is part of a Unit.

2    Applies only if this Purchase Contract has been separated from a Unit.

                                      A-14
<PAGE>

              [IF PURCHASE CONTRACT IS SEPARATED FROM UNIT, INSERT]

                              [FORM OF ASSIGNMENT]

FOR VALUE RECEIVED, the undersigned assigns and transfers the Purchase
Contract(s) represented by this Certificate to:

                (Insert assignee's social security or tax identification number)
---------------

                (Insert address and zip code of assignee)
---------------

and irrevocably appoints
                         ----------------------------------------------

agent to transfer this Certificate on the books of the Corporation. The agent
may substitute another to act for him or her.

Date:

Signature(s):

         ------------------------------------------------------------

         ------------------------------------------------------------

    (Sign exactly as your name appears on the other side of this Certificate)

NOTICE: The signature(s) should be guaranteed by an eligible guarantor
institution (banks, stockbrokers, savings and loan associations and credit
unions with membership in an approved signature guarantee medallion program),
pursuant to S.E.C. Rule 17Ad-15.]

                                      A-15
<PAGE>

           [IF UNIT CERTIFICATE IS A GLOBAL UNIT CERTIFICATE, INSERT -

                                                                      SCHEDULE A

                                     GLOBAL
                                UNIT CERTIFICATE
                              SCHEDULE OF EXCHANGES

     The initial number of Units represented by this Global Unit Certificate is
_____________. In accordance with the Unit Agreement pursuant to which this
Global Unit Certificate has been issued, the following reductions of the number
of Units represented by this Global Unit Certificate have occurred:

<TABLE>
<CAPTION>

                         Number Reduced
                         by Separation of                                Number of Units
                         the Component          Number Reduced by        Outstanding
                         Parts of this          Settlement of            Following any such
Date of Reduction        Unit                   Purchase Contracts       Reduction
--------------------     ------------------     ---------------------    ---------------------
<S>                      <C>                    <C>                      <C>

--------------------     ------------------     ---------------------    ---------------------

--------------------     ------------------     ---------------------    ---------------------

--------------------     ------------------     ---------------------    ---------------------

--------------------     ------------------     ---------------------    ---------------------

--------------------     ------------------     ---------------------    ---------------------

--------------------     ------------------     ---------------------    ---------------------

--------------------     ------------------     ---------------------    ---------------------

--------------------     ------------------     ---------------------    ---------------------

--------------------     ------------------     ---------------------    ---------------------

--------------------     ------------------     ---------------------    ---------------------
</TABLE>

                                      A-16
<PAGE>

                     [IF UNIT IS A DEFINITIVE UNIT, INSERT -

                              [FORM OF ASSIGNMENT]

FOR VALUE RECEIVED, the undersigned assigns and transfers the Unit(s)
represented by this Certificate to:

                (Insert assignee's social security or tax identification number)
---------------

                                       (Insert address and zip code of assignee)

and irrevocably appoints

agent to transfer this Unit Certificate on the books of the Corporation. The
agent may substitute another to act for him or her.

Date:

Signature(s):

         ------------------------------------------------------------

         ------------------------------------------------------------

   (Sign exactly as your name appears on the other side of this Certificate)

NOTICE: The signature(s) should be guaranteed by an eligible guarantor
institution (banks, stockbrokers, savings and loan associations and credit
unions with membership in an approved signature guarantee medallion program),
pursuant to S.E.C. Rule 17Ad-15.]

                                      A-17

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00034-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00034-of-00352.parquet"}]]