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                                                                   Exhibit 10.D



                    RYERSON TULL 1996 INCENTIVE STOCK PLAN
                     (As Amended through January 28, 1998)


1. Purpose.

     The purpose of the Ryerson Tull 1996 Incentive Stock Plan (the "Plan") is
to attract and retain outstanding individuals as officers and key employees of
Ryerson Tull, Inc. (the "Company") and its subsidiaries, and to furnish
incentives to such individuals through rewards based upon the ownership and
performance of the Common Stock (as defined in Section 3). To this end, the
Committee hereinafter designated and, in certain circumstances, the Chairman of
the Board of the Company (the "Chairman") or the President of the Company, may
grant stock options, stock appreciation rights, restricted stock awards, and
performance awards, or combinations thereof, to officers and other key employees
of the Company and its subsidiaries, on the terms and subject to the conditions
set forth in this Plan.

2. Participants.

     Participants in the Plan shall consist of: (i) such officers and other key
employees of the Company and its subsidiaries as the Committee in its sole
discretion may select from time to time to receive stock options, stock
appreciation rights, restricted stock awards or performance awards, either
singly or in combination, as the Committee may determine in its sole discretion;
and (ii) if the Committee authorizes the Chairman or the President to make
grants or awards of stock options, stock appreciation rights, restricted stock
or performance awards, such employees of the Company and its subsidiaries who
are not subject to section 16(a) of the Securities Exchange Act of 1934, as
amended (the "Exchange Act") as the Chairman or the President shall determine in
his or her sole discretion after consultation with the Vice President-Human
Resources of the Company. Individuals who receive awards of Substitute Options
and Substitute Restricted Stock pursuant to Section 14 shall also be
Participants in the Plan. Any director of the Company or any of its subsidiaries
who is not also an employee of the Company or any of its subsidiaries shall not
be eligible to receive stock options, stock appreciation rights, restricted
stock awards or performance awards under the Plan. As used in the Plan, the term
"subsidiary" means (a) any corporation of which the Company owns or controls,
directly or indirectly, 50% or more of the outstanding shares of capital stock
entitled to vote
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for the election of directors or (b) any partnership, joint venture, or other
business entity in respect of which the Company, directly or indirectly, has
comparable ownership or control.

3. Shares Reserved under the Plan.

     Subject to adjustment pursuant to the provisions of Section 11 of the Plan,
the maximum number of shares of Class A Common Stock, $1.00 par value per share,
of the Company ("Common Stock") which may be issued pursuant to grants or awards
made under the Plan shall not exceed 2,300,000. No more than 800,000 shares of
Common Stock shall be issued pursuant to restricted stock awards and performance
awards under the Plan.

     The following restrictions shall apply to all grants and awards under the
Plan other than grants and awards which by their terms are not intended to
comply with the "Performance-Based Exception" (defined below in this Section 3):

     (a) the maximum aggregate number of shares of Common Stock that may be
granted or awarded under the Plan to any participant under the Plan during any
three year period shall be 1,500,000; and

     (b) the maximum aggregate cash payout with respect to grants or awards
under the Plan in any fiscal year of the Company to any Named Executive Officer
(defined below in this Section 3) shall be $1,000,000.

     For purposes of the Plan, "Named Executive Officer" shall mean a
participant who is one of the group of "covered employees" as defined in the
regulations promulgated under section 162(m) of the Internal Revenue Code of
1986, as amended (the "Code") or any successor statute, and "Performance-Based
Exception" shall mean the performance-based exception from the deductibility
limitations as set forth in Section 162(m) of the Code.

     Except to the extent otherwise determined by the Committee, any shares of
Common Stock subject to grants or awards under the Plan that terminate by
expiration, cancellation or otherwise without the issuance of such shares
(including shares underlying a stock appreciation right exercised for stock, to
the extent that such underlying shares are not issued), that are settled in cash
(to the extent so settled), or, in the case of restricted stock awards, that
terminate without vesting, shall become available for future grants and awards
under the Plan. Shares of Common Stock to be issued pursuant to grants or awards
under the Plan may be authorized and unissued shares of Common Stock, treasury
Common Stock, or any combination thereof.

4. Administration of the Plan.

     The Plan shall be administered by the Compensation Committee (the
"Committee") of the Board of Directors of the Company (the "Board"). To the
extent necessary to comply


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with the exemption provided by rule 16b-3 under the Exchange Act or any
successor rule ("Rule 16b-3"), each member of the Committee shall be a "non-
employee director" within the meaning of Rule 16b-3. Subject to the provisions
of the Plan, the Committee shall have authority: (i) to determine which
employees of the Company and its subsidiaries shall be eligible for
participation in the Plan; (ii) to select employees to receive grants under the
Plan; (iii) to determine the form of grant, whether as a stock option, stock
appreciation right, restricted stock award, performance award or a combination
thereof, the number of shares of Common Stock or units subject to the grant, the
time and conditions of exercise or vesting, the fair market value of the Common
Stock for purposes of the Plan, and all other terms and conditions of any grant
and to amend such awards or accelerate the time of exercise or vesting thereof;
and (iv) to prescribe the form of agreement, certificate or other instrument
evidencing the grant. Notwithstanding the foregoing, the Committee, subject to
the terms and conditions of the Plan, may delegate to the Chairman or the
President of the Company, if such individual is then serving as a member of the
Board, the authority to act as a subcommittee of the Committee for purposes of
making grants or awards of stock options, stock appreciation rights, restricted
stock or performance awards, not to exceed such number of shares as the
Committee shall designate annually, to such employees of the Company and its
subsidiaries who are not subject to section 16(a) of the Exchange Act as the
Chairman or the President shall determine in his or her sole discretion after
consultation with the Vice President-Human Resources of the Company, and the
Chairman or the President, as applicable, shall have the authority and duties of
the Committee with respect to such grants.

     The Committee shall also have authority to interpret the Plan and to
establish, amend and rescind rules and regulations for the administration of the
Plan, and all such interpretations, rules and regulations shall be conclusive
and binding on all persons.

5. Effective Date of Plan.

    The Plan shall be effective upon approval by the stockholder(s) of the
Company.

6. Stock Options.

     (a) Grants. Subject to the terms of the Plan, options to purchase shares of
Common Stock, including "incentive stock options" within the meaning of Section
422 of the Code, may be granted from time to time to such officers and other key
employees of the Company and its subsidiaries as may be selected by the
Committee. Each grant of an option under the Plan may designate whether the
option is intended to be an incentive stock option or a "nonqualified" stock
option. Any option not so designated shall be deemed to be a "nonqualified"
stock option.

     (b) Terms of Options. An option shall be exercisable in whole or in such
installments and at such times as may be determined by the Committee in its sole
discretion, provided that no option shall be exercisable less than six months or
more than

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ten years after the date of grant (except in the case of death or physical or
mental incapacity). The per share option price shall not be less than the
greater of par value or 100% of the fair market value of a share of Common Stock
on the date the option is granted. Upon exercise, the option price may be paid
in cash, in shares of Common Stock having a fair market value equal to the
option price which have been owned by the Participant for at least 6 months
prior thereto, or in a combination thereof. The Committee may also allow the
cashless exercise of options by holders thereof, as permitted under regulations
promulgated by the Board of Governors of the Federal Reserve System, subject to
any applicable restrictions necessary to comply with rules adopted by the
Securities and Exchange Commission, and the exercise of options by holders
thereof by any other means that the Committee determines to be consistent with
the Plan's purpose and applicable law, including loans, with or without
interest, made by the Company to the holder thereof.

     (c) Restrictions Relating to Incentive Stock Options. To the extent
required by the Code, the aggregate fair market value (determined as of the time
the option is granted) of the Common Stock with respect to which incentive stock
options are exercisable for the first time by an employee during any calendar
year (under the Plan or any other plan of the Company or any of its
subsidiaries) shall not exceed $100,000.

     (d) Termination of Employment. If an optionee ceases to be employed by the
Company or any of its subsidiaries by reason of (i) death, (ii) physical or
mental incapacity, (iii) retirement on or after the normal retirement date
provided for in and pursuant to any pension plan of the Company or any
subsidiary of the Company in effect at the time of such retirement, or (iv)
early retirement (with the consent of the Committee) provided for in and
pursuant to any such pension plan, any option held by such optionee may be
exercised, with respect to all or any part of the Common Stock as to which such
option was not theretofore exercised (whether or not such option was otherwise
then exercisable), for such period from and after the date of such cessation of
employment (not extending, however, beyond the date of expiration of such
option) as the Committee may determine at the time of the grant or at any time
thereafter. If an optionee ceases to be employed by the Company and any of its
subsidiaries for any reason other than a reason set forth in the immediately
preceding sentence, any option granted to such optionee may be exercised for a
period ending on the 30th day following the date of such cessation of employment
or the date of expiration of such option, whichever first occurs, but only with
respect to that number of shares of Common Stock for which such option was
exercisable immediately prior to the date of cessation of employment, except as
otherwise determined by the Committee at the time of grant or any time
thereafter.

     (e) Additional Terms and Conditions. The agreement or instrument evidencing
the grant of a stock option may contain such other terms, provisions and
conditions not inconsistent with the Plan as may be determined by the Committee
in its sole discretion.


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7. Stock Appreciation Rights.

     (a) Grants. Subject to the terms of the Plan, rights entitling the grantee
to receive cash or shares of Common Stock having a fair market value equal to
the appreciation in market value of a stated number of shares of such Common
Stock from the date of the grant to the date of exercise, or, in the case of
rights granted in tandem with or by reference to a stock option granted prior to
the grant of such rights, from the date of grant of such related stock option to
the date of exercise, may be granted from time to time to such officers and
other key employees of the Company and its subsidiaries as may be selected by
the Committee.

     (b) Terms of Grant.  Such rights may be granted in tandem with or by
reference to a related stock option, in which event the grantee may elect to
exercise either the stock option or the right, but not both, as to the shares
subject to the stock option and the right, or the right may be granted
independently of a stock option. Rights granted in tandem with or by reference
to a related stock option shall, except as provided at the time of grant, be
exercisable to the extent, and only to the extent, that the related option is
exercisable, provided that no such right (except in the case of death or
physical or mental incapacity) shall be exercisable prior to the expiration of
six months following the date the right is granted. Rights granted independently
of a stock option shall be exercisable in whole or in such installments and at
such times as may be determined by the Committee, provided that no right (except
in the case of death or physical or mental incapacity) shall be exercisable less
than six months or more than ten years after the date of grant. Further, in the
event that any employee to whom rights are granted independently of a stock
option ceases to be an employee of the Company and its subsidiaries, such rights
shall be exercisable only to the extent and upon the conditions that stock
options are exercisable in accordance with the provisions of paragraph (d) of
Section 6 of the Plan. The Committee may at the time of the grant or at any time
thereafter impose such additional terms and conditions on the exercise of stock
appreciation rights as it deems necessary or desirable for any reason, including
for compliance with Section 16(a) or Section 16(b) of the Exchange Act and the
rules and regulations thereunder.

     (c) Payment on Exercise.  Upon exercise of a stock appreciation right, the
holder shall be paid the excess of the then fair market value of the number of
shares of Common Stock to which the right relates over the fair market value of
such number of shares at the date of grant of the right or of the related stock
option, as the case may be. Such excess shall be paid in cash or in shares of
Common Stock having a fair market value equal to such excess, or in such
combination thereof, as may be provided in the grant of such right (which may
permit the holder to elect between cash and Common Stock or to elect a
combination thereof), or, if no such provision is made in the grant, as the
Committee shall determine upon exercise of the right, provided, in any event,
that the holder shall be paid cash in lieu of any fractional share of Common
Stock to which such holder would otherwise be entitled.


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     (d) Additional Terms and Conditions.  The agreement or instrument
evidencing the grant of stock appreciation rights may contain such other terms,
provisions and conditions not inconsistent with the Plan as may be determined by
the Committee in its sole discretion.

8. Restricted Stock Awards.

     Subject to the terms of the Plan, restricted stock awards consisting of
shares of Common Stock may be made from time to time to such officers and other
key employees of the Company and its subsidiaries as may be selected by the
Committee, provided that any such employee (except an employee whose terms of
employment include the granting of a restricted stock award) shall have been
employed by the Company or any of its subsidiaries for at least six months. Such
awards shall be contingent on the employee's continuing employment with the
Company or its subsidiaries for a period to be specified in the award, which
(except in the case of death or physical or mental incapacity) shall not be less
than six months or more than ten years from the date of award, and shall be
subject to such additional terms and conditions as the Committee in its sole
discretion deems appropriate, including, but not by way of limitation,
restrictions on the sale or other disposition of such shares during the
restriction period. Except as otherwise determined by the Committee at the time
of the award, the holder of a restricted stock award shall have the right to
vote the restricted shares and to receive dividends thereon, unless and until
such shares are forfeited.

9. Performance Awards.

  (a) Awards.  Performance awards consisting of (i) shares of Common Stock, (ii)
monetary units or (iii) units which are expressed in terms of shares of Common
Stock may be made from time to time to such officers and other key employees of
the Company and its subsidiaries as may be selected by the Committee.  Subject
to the provisions of Section 12 below, such awards shall be contingent on the
achievement over a period of not less than six months or more than ten years of
such corporate, division, subsidiary, group or other measures and goals as shall
be established by the Committee.  Subject to the provisions of Section 12 below,
such measures and goals may be revised by the Committee at any time from time to
time during the performance period.  Except as may otherwise be determined by
the Committee at the time of the award or at any time thereafter, a performance
award shall terminate if the grantee of the award does not remain continuously
in the employ of the Company or its subsidiaries at all times during the
applicable performance period.

  (b) Rights with Respect to Shares and Share Units.  If a performance award
consists of shares of Common Stock or units which are expressed in terms of
shares of such Common Stock, amounts equal to dividends otherwise payable on a
like number of shares may, if the award so provides, be converted into
additional such shares (to the extent that shares are then available for
issuance under the Plan) or credited as additional

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units and paid to the participant if and when, and to the extent that, payment
is made pursuant to such award.

  (c) Payment.  Payment of a performance award following the end of the
performance period, if such award consists of monetary units or units expressed
in terms of shares of Common Stock, may be made in cash, shares of Common Stock,
or a combination thereof, as determined by the Committee. Any payment made in
Common Stock shall be based on the fair market value of such stock on the
payment date.

10. Performance Measures Applicable to Awards to Named Executive Officers.

     Unless and until the Committee proposes for stockholder vote a change in
the general performance measures set forth in this Section 10, the attainment of
which may determine the degree of payout or vesting with respect to awards under
the Plan which are designed to qualify for the Performance-Based Exception, the
performance measure(s) to be used for purposes of such awards shall be chosen
from among the following alternatives: safety (including total injury frequency,
lost workday rates or cases, medical treatment cases and fatalities); quality
control (including critical product characteristics and defects); cost control
(including cost as a percentage of sales); capital structure (including debt and
equity levels, debt-to-equity ratios, and debt-to total-capitalization ratios);
inventory turnover; customer performance or satisfaction; revenue growth; net
income; conformity to cash flow plans; return on investment; and operating
profit to operating assets.

     The Committee shall have the discretion to establish performance goals
based upon the foregoing performance measures and to adjust such goals and the
methodology used to measure the determination of the degree of attainment of
such goals; provided, however, that awards under the Plan that are intended to
qualify for the Performance-Based Exception and that are issued to or held by
Named Executive Officers may not be adjusted in a manner that increases such
award. The Committee shall retain the discretion to adjust such awards in a
manner that does not increase such awards. Furthermore, the Committee shall not
make any adjustment to awards under the Plan issued to or held by Named
Executive Officers that are intended to comply with the Performance-Based
Exception if the result of such adjustment would be the disqualification of such
award under the Performance-Based Exception.

     In the event that applicable laws change to permit the Committee greater
discretion to amend or replace the foregoing performance measures applicable to
awards to Named Executive Officers without obtaining stockholder approval of
such changes, the Committee shall have sole discretion to make such changes
without obtaining such approval. In addition, in the event that the Committee
determines that it is advisable to grant awards under the Plan to Named
Executive Officers that may not qualify for the Performance-Based Exception, the
Committee may make such grants upon any performance measures it deems
appropriate with the understanding that they may not satisfy the requirements of
Section 162(m) of the Code.


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11. Adjustments for Changes in Capitalization, Etc.

     Subject to the provisions of Section 12 herein, in the event of any change
in corporate capitalization, such as a stock split, reverse stock split, stock
dividend, or a corporate transaction, such as a merger, consolidation, or
separation, including a spin-off, or other distribution of stock or property of
the Company or its subsidiaries (other than normal cash dividends), any
reorganization (whether or not such reorganization comes within the definition
of such term in Code Section 368) or any partial or complete liquidation of the
Company or its subsidiaries, such adjustment shall be made in the number and
class of shares which may be delivered under Section 3 (including the number of
shares referred to in the last sentence of the first paragraph of Section 3 and
in subparagraph (a) of the second paragraph of Section 3), and in the number and
class of and/or price of shares subject to outstanding grants or awards under
the Plan, as may be determined to be appropriate and equitable by the Committee,
in its sole discretion, to prevent dilution or enlargement of rights; provided,
however, that the number of shares subject to any grants or awards under the
Plan shall always be a whole number.

12. Effect of Change in Control.

     (a) Acceleration of Benefits.  Subject to the following sentence, in the
event of a "Change in Control" as defined in paragraph (b) of this Section 12,
(i) the value of all outstanding stock options, stock appreciation rights and
restricted stock awards (whether or not then fully exercisable or vested) shall
be cashed out on the basis of the "Change in Control Price" (as defined in
paragraph (c) of this Section 12) as of the date the Change in Control occurs,
provided, however, that any stock options or stock appreciation rights
outstanding for less than six months shall not be cashed out until six months
after the respective date of grant, and provided, further, that the Committee
may provide for the immediate vesting instead of the cashing out of restricted
stock awards in such circumstances as it deems appropriate; and (ii) all
outstanding performance awards shall be cashed out in such manner and in such
amount or amounts as determined by the Committee in its sole discretion. In the
event of a transaction which is intended to be accounted for through the
pooling-of-interest accounting method, (i) in lieu of cashing out all or any
portion of the outstanding stock options, stock appreciation rights, restricted
stock awards and performance awards, the Committee, in its discretion, may cause
such grants or awards to vest, and may limit payment to shares of Common Stock,
and (ii) the Committee, in its discretion, may extend the exercise period for
stock options and stock appreciation rights, but not beyond the earlier of (A)
30 days after the end of the pooling period or (B) the original term of the
stock option or stock appreciation right.

     (b) Change in Control. For purposes of this Section 12, a Change in Control
means the happening of any of the following:

          (i) any "person" (as such term is used in Sections 13(d) and 14(d) of
     the Exchange Act), other than (w) the Company and its affiliates
     (collectively referred to

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     herein as "RTI"), (x) a trustee or other fiduciary holding securities under
     an employee benefit plan of RTI, (y) an underwriter temporarily holding
     securities pursuant to an offering of such securities, or (z) a corporation
     owned, directly or indirectly, by the stockholders of the Company in
     substantially the same proportions as their ownership of stock of the
     Company, is or becomes the "beneficial owner" (as defined in Rule 13d-3
     under the Exchange Act), directly or indirectly, of securities of the
     Company (not including in the securities beneficially owned by such person
     any securities acquired directly from the Company or its affiliates)
     representing 40% or more of the combined voting power of the Company's then
     outstanding securities;

          (ii)  during any period of two consecutive years, individuals who at
     the beginning of such period constitute the Board and any new director
     (other than a director designated by a person who has entered into an
     agreement with the Company to effect a transaction described in clauses
     (i), (ii) or (iv) of this Subsection) whose election by the Board or
     nomination for election by the Company's stockholders was approved by a
     vote of at least two-thirds (2/3) of the directors then still in office who
     either were directors at the beginning of the period or whose election or
     nomination for election was previously so approved cease for any reason to
     constitute a majority thereof;

          (iii)  the stockholders of the Company approve a merger or
     consolidation of the Company with any other corporation, other than a
     merger or consolidation which would result in the voting securities of the
     Company outstanding immediately prior thereto continuing to represent
     (either by remaining outstanding or by being converted into voting
     securities of the surviving entity), in combination with the ownership of
     any trustee or other fiduciary holding securities under an employee benefit
     plan of RTI, at least 60% of the combined voting power of the voting
     securities of the Company or such surviving entity outstanding immediately
     after such merger or consolidation, or a merger or consolidation effected
     to implement a recapitalization of the Company (or similar transaction) in
     which no person acquires more than 50% of the combined voting power of the
     Company's then outstanding securities; or

          (iv)  the stockholders of the Company approve a plan of complete
     liquidation of the Company or an agreement for the sale or disposition by
     the Company of all or substantially all of the Company's assets.

A Change in Control shall also be deemed to occur with respect to any
Participant for purposes of the Plan if there occurs:

          (1)  a sale or disposition, directly or indirectly, other than to a
     person described in subclause (w), (x) or (z) of clause (i) next above, of
     securities of the Participant's employer, any direct or indirect parent
     company of the Participant's employer or any company that is a subsidiary
     of the Participant's employer and is also a significant subsidiary (as
     defined below) of the Company (the Participant's employer and such

                                      -9-

<PAGE>

     a parent or subsidiary being a "Related Company"), representing 50% or more
     of the combined voting power of the securities of such Related Company then
     outstanding;

          (2)  a merger or consolidation of a Related Company with any other
     corporation, other than a merger or consolidation which would result in 50%
     or more of the combined voting power of the surviving company being
     beneficially owned by a majority owned direct or indirect subsidiary of the
     Company; or

          (3)  the sale or disposition of all or substantially all the assets of
     a Related Company to a person other than a majority owned direct or
     indirect subsidiary of the Company.

Notwithstanding the foregoing, no Change in Control shall be deemed to have
occurred with respect to a Participant for purposes of the Plan if (I) such
transaction includes or involves a sale to the public or a distribution to the
stockholders of the Company of more than 50% of the voting securities of the
Participant's employer or a direct or indirect parent of the Participant's
employer, and (II) the Participant's employer or a direct or indirect parent of
the Participant's employer agrees to become a successor to the Company under an
individual agreement between the Company and the Participant or the Participant
is covered by an agreement providing for benefits upon a change in control of
his or her employer following an event described in clauses (1), (2) or (3) next
above.  For purposes of the Plan, the term "significant subsidiary" has the
meaning given to such term under Rule 405 of the Securities Act of 1933, as
amended.

     (c) Change in Control Price.  For purposes of this Section 12, Change in
Control Price means:

          (i)  with respect to a Change in Control by reason of a merger or
     consolidation of the Company described in paragraph (b)(iii) of this
     Section 12 in which the consideration per share of Common Stock to be paid
     for the acquisition of shares of Common Stock specified in the agreement of
     merger or consolidation is all in cash, the highest such consideration per
     share;

          (ii)  with respect to a Change in Control by reason of an acquisition
     of securities described in paragraph (b)(i) of this Section 12, the highest
     price per share for any share of the Common Stock paid by any holder of any
     of the securities representing 40% or more of the combined voting power of
     the Company giving rise to the Change in Control; and

          (iii)  with respect to a Change in Control by reason of a merger or
     consolidation of the Company (other than a merger or consolidation
     described in paragraph (b)(iii) of this Section or a change in the
     composition of the Board of Directors described in paragraph (b)(ii) of
     this Section 12), the highest price per share of Common Stock reported on
     the Composite Transactions (or, if such shares are not traded on the New

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<PAGE>

     York Stock Exchange, such other principal market on which such shares are
     traded) during the sixty-day period ending on the date the Change in
     Control occurs, except that, in the case of incentive stock options and
     stock appreciation rights relating to incentive stock options, the holder
     may not receive an amount in excess of the maximum amount that will enable
     such option to continue to qualify as an incentive stock option.

13.  Amendment and Termination of Plan.

     The Plan may be amended by the Board in any respect, provided that, without
stockholder approval, no amendment (other than pursuant to Section 11 of the
Plan) shall increase the maximum number of shares available for issuance under
the Plan if such action would result in awards under the Plan no longer being
exempt under Rule 16b-3 as then in effect. In addition, no amendment may impair
the rights of a participant under any stock option, stock appreciation right,
restricted stock award or performance award previously granted under the Plan
without the consent of such participant, unless required by law. The Plan may
also be terminated at any time by the Board. No further grants may be made under
the Plan after termination, but termination shall not affect the rights of any
participant under, or the authority of the Committee with respect to, any grants
or awards made prior to termination.

14. Grant of Substitute Awards.

     (a) Substitute Options.  In lieu of outstanding options to purchase Inland
Steel Industries, Inc. ("ISI") common stock ("ISI Options") granted pursuant to
the Inland 1995 Incentive Stock Plan, the Inland 1992 Incentive Stock Plan, the
Inland 1988 Incentive Stock Plan or the Inland 1984 Incentive Stock Plan
(collectively, the "ISI Incentive Plans") to officers and employees of ISI and
its subsidiaries who are or who become officers or employees of the Company or
any of its subsidiaries on or after the closing date of the initial public
offering of Common Stock and prior to the date on which the Company and its
subsidiaries cease to be treated as a single employer with ISI under section
414(b) or (c) of the Code ("Transferred Employees"), such Transferred Employees
shall receive a grant of "Substitute Stock Options" under the Plan; provided
that the Committee, in its sole discretion, may award Substitute Stock Options
to any Transferred Employee with respect to less than all (including none) of
his or her outstanding options under the ISI Incentive Plans, in which case the
outstanding ISI Options for which no Substitute Stock Options have been granted
will remain outstanding.  The number of shares of Common Stock subject to any
Substitute Stock Option shall bear the same ratio to the number of shares of ISI
common stock subject to the corresponding ISI Option as the Average Value (as
defined below) of a share of ISI common stock bears to the Average Value of a
share of Common Stock.  The per share option price of Common Stock subject to
the Substitute Stock Option shall be equal to the amount which bears the same
ratio to the Average Value of a share of Common Stock as the per share option
price of ISI common stock under the ISI Option bears to the Average Value of a
share of ISI common stock. Other than the option price and

                                     -11-

<PAGE>

number of shares, the Substitute Stock Options shall be subject to the same
terms and conditions as the ISI Options.  The term "Average Value" means the
average closing price of Common Stock or ISI common stock, as applicable, as
reported, in the case of Common Stock, on the New York Stock Exchange Composite
Transactions (the "Composite Transactions") (or, if such shares are not traded
on the New York Stock Exchange, such other principal market on which such shares
are traded) for the first ten trading days after the date of the substitution.

     (b) Substitute Restricted Stock.  In lieu of outstanding shares of
restricted ISI common stock ("ISI Restricted Stock") granted pursuant to the ISI
Incentive Plans to Transferred Employees, such Transferred Employees shall
receive a grant of "Substitute Restricted Stock" under the Plan; provided that
the Committee, in its sole discretion, may award Substitute Restricted Stock to
any Transferred Employee with respect to less than all (including none) of his
or her outstanding restricted stock under the ISI Incentive Plans, in which case
the outstanding ISI Restricted Stock for which no Substitute Restricted Stock
has been granted will remain outstanding.  The number of shares of Substitute
Restricted Stock shall bear the same ratio to the number of shares of ISI
Restricted Stock as the Average Value of a share of ISI common stock bears to
the Average Value of a share of Common Stock.  Other than the number of shares,
the Substitute Restricted Stock shall be subject to the same terms and
conditions as the ISI Restricted Stock.

15. Miscellaneous.

     (a) No Right to a Grant.  Neither the adoption of the Plan nor any action
of the Board or of the Committee shall be deemed to give any employee any right
to be selected as a participant or to be granted a stock option, stock
appreciation right, restricted stock award or performance award.

     (b) Rights as Stockholders.  No person shall have any rights as a
stockholder of the Company with respect to any shares covered by a stock option,
stock appreciation right, or performance award until the date of the issuance of
a stock certificate to such person pursuant to such stock option, right or
award.

     (c) Employment.  Nothing contained in this Plan shall be deemed to confer
upon any employee any right of continued employment with the Company or any of
its subsidiaries or to limit or diminish in any way the right of the Company or
any such subsidiary to terminate his or her employment at any time with or
without cause.

     (d) Taxes.  The Company shall be entitled to deduct from any payment under
the Plan the amount of any tax required by law to be withheld with respect to
such payment or may require any participant to pay such amount to the Company
prior to and as a condition of making such payment.  In addition, the Committee
may, in its discretion and subject to such rules as it may adopt from time to
time, permit a participant to elect to have the Company withhold from any
payment under the Plan (or to have the Company accept from

                                     -12-

<PAGE>

the participant), for tax withholding purposes, shares of Common Stock, valued
at their fair market value, but in no event shall the fair market value of the
number of shares so withheld (or accepted) exceed the amount necessary to meet
the maximum Federal, state and local marginal tax rates then in effect that are
applicable to the participant and to the particular transaction.

     (e) Nontransferability. Except as permitted by the Committee, no stock
option, stock appreciation right, restricted stock award or performance award
shall be transferable except by will or the laws of descent and distribution,
and, during the holder's lifetime, stock options and stock appreciation rights
shall be exercisable only by, and shares subject to restricted stock awards and
payments pursuant to performance awards shall be delivered or made only to, such
holder or such holder's duly appointed legal representative.

                                     -13-

<PAGE>

the participant), for tax withholding purposes, shares of Common Stock, valued
at their fair market value, but in no event shall the fair market value of the
number of shares so withheld (or accepted) exceed the amount necessary to meet
the maximum Federal, state and local marginal tax rates then in effect that are
applicable to the participant and to the particular transaction.

     (e) Nontransferability. Except as permitted by the Committee, no stock
option, stock appreciation right, restricted stock award or performance award
shall be transferable except by will or the laws of descent and distribution,
and, during the holder's lifetime, stock options and stock appreciation rights
shall be exercisable only by, and shares subject to restricted stock awards and
payments pursuant to performance awards shall be delivered or made only to, such
holder or such holder's duly appointed legal representative.

                                     -14-