Document:

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                                                                    Exhibit 10.2

                    SUPPLEMENTAL SAVINGS AND RETIREMENT PLAN
                          FOR KEY SALARIED EMPLOYES OF
                              MILLIPORE CORPORATION

                                    Amendment

     WHEREAS Millipore Corporation (the "Company") established the Supplemental
Savings and Retirement Plan for Key Salaried Employees of Millipore Corporation
(the "Plan"), effective January 1, 1985; and

     WHEREAS the Company retained the right to amend the Plan from time to time
and to interpret its provisions; and

     WHEREAS the Company now desires to amend the Plan to provide for the
transfer to the Mykrolis Corporation 2001 Deferred Compensation Plan for Senior
Management of certain liabilities attributable to Participants whose employment
is transferred to Mykrolis Corporation;

     NOW, THEREFORE, the Company adopts the following amendments, effective
April 1, 2001:

      1. Section 3 is amended to add a new Section 3.6 to read as follows:

         "3.6 Mykrolis Corporation Employees. Effective April 1, 2001
         (or such later date on which the Participant's employment is
         transferred from Millipore Corporation to Mykrolis
         Corporation), each Participant who becomes an employee of
         Mykrolis Corporation on or after such date shall cease to
         participate in the Plan and shall not be permitted to defer
         any further compensation pursuant to the Plan. In addition and
         subject to the consent of each affected Participant, effective
         as of such date the liability for all benefits due hereunder
         to all Participants who become employees of Mykrolis
         Corporation shall be transferred to the Mykrolis Corporation
         2001 Deferred Compensation Plan for Senior Management
         ("Mykrolis Plan"). After such date, the affected Participants
         shall be entitled to benefits only from the Mykrolis Plan and
         shall not be entitled to any

                                      -1-

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         benefits from this Plan. The transfer of employment from
         Millipore Corporation to Mykrolis Corporation shall not be
         deemed a termination of employment for purposes of this Plan,
         and effective April 1, 2001, Participants whose employment is
         transferred to Mykrolis Corporation shall not be entitled to a
         distribution hereunder."

     IN WITNESS WHEREOF, MILLIPORE CORPORATION has caused this document to be
executed this 31st day of March, 2001.

                                            MILLIPORE CORPORATION

                                            By: /s/ Jeffrey Rudin
                                                --------------------------------
                                                Jeffrey Rudin
                                                Vice President, General Counsel

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                                                                 Exhibit 10 (FF)

                                 LTX CORPORATION

                                 2001 STOCK PLAN

1.   Definitions.  As used in this 2001 Stock Plan, the following terms shall
     -----------
have the following meanings:

         1.1      Board means the Company's Board of Directors.
                  -----

         1.2      Code means the Federal Internal Revenue Code of 1986, as
                  ----
                  amended.

         1.3      Company means LTX Corporation.
                  -------

         1.4      Fair Market Value means the value of a share of Stock of the
                  -----------------
                  Company on any date, as determined by the Board.

         1.5      Grant Date means the date on which an Option or Restricted
                  ----------
                  Share award is granted, as specified in Section 7.

         1.6      Incentive Option means an Option intended to be an incentive
                  ----------------
                  stock option with the meaning of Section 422 of the Code.

         1.7      Market Value means, as of a particular date, the closing price
                  ------------
                  of the Stock on the NASDAQ National Market on that date.

         1.8      Nonstatutory Option means any option that is not an Incentive
                  -------------------
                  Option.

         1.9      Officer means any person who has been identified by the Board
                  -------
                  as an "officer" for purposes of Section 16 of the Securities
                  Exchange Act of 1934, as amended.

         1.10     Option means an option to purchase shares of the stock granted
                  ------
                  under the Plan.

         1.11     Option Agreement means an agreement between the Company and an
                  ----------------
                  Recipient, setting forth the terms and conditions of an
                  Option.

         1.12     Option Price means the price paid by an Recipient for an
                  ------------
                  Option Share under this Plan.

         1.13     Option Share means any share of Stock of the Company
                  ------------
                  transferred to an Recipient upon exercise of an Option
                  pursuant to this Plan.

2001 Stock Option Plan                 1

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         1.14     Plan means this 2001 Stock Plan of the Company, as amended.
                  ----

         1.15     Recipient means a person eligible to receive an Option or
                  ---------
                  award, as provided in Section 6, to whom an Option or award
                  shall have been granted under the Plan.

         1.16     Restricted Share means a share of the Stock awarded to a
                  ----------------
                  Recipient, but subject to provisions affecting retention and
                  transferability.

         1.17     Stock means common stock, par value $ 0.05 per share, of the
                  -----
                  Company.

         1.18     Vesting Year for any portion of any Option means the calendar
                  ------- ----
                  year in which that portion of the Option first becomes
                  exercisable.

2.   Purpose. This 2001 Stock Plan is intended to advance the interests of the
     -------
Company and its stockholders by improving the Company's ability to attract and
retain qualified individuals who are in a position to contribute to the
management and growth of the Company and its subsidiaries and to provide
additional incentive for such individuals to contribute to the Company's future
success. The Plan is intended to be an incentive stock option plan within the
meaning of Section 422 of the Code, but not all Options granted hereunder are
required to be Incentive Options.

3.   Term of the Plan.  Options and Restricted Share awards under the Plan may
     ----------------
be granted on or after September 12, 2001, but not later than September 12,
2011.

4.   Stock Subject to the Plan. Subject to the provisions of Section 14 of the
     -------------------------
Plan, the number of shares of the Stock attributable to the exercise of Options
granted under the Plan plus the number of shares then issuable upon exercise of
outstanding options granted under the Plan plus the number of Restricted Shares
awarded under the Plan shall at no time exceed 2,350,000 shares. Shares to be
issued upon the exercise of Options granted under the Plan and Restricted Shares
may be either authorized but unissued shares or shares held by the Company in
its treasury. If any Option expires or terminates for any reason without having
been exercised in full, the shares not purchased thereunder shall again be
available for Options thereafter to be granted. Each Director who is not an
employee of the Company or a subsidiary thereof shall receive a Nonstatutory
Option to purchase 20,000 shares of Common Stock on the date on which he or she
is first elected to the Board of Directors of the Company and an additional
Nonstatutory Option to purchase 8,000 shares of Common Stock on the date of each
annual meeting at which he or she is re-elected or after which he continues to
serve as a Director. Each Director who is not an employee of the Company or a
subsidiary thereof shall also receive a Nonstatutory Option to purchase 3,000
shares of Common Stock in each year served as a chairman of a Committee of the
Board of Directors and a Nonstatutory Option to purchase 1,500 shares of Common
Stock in each year served as a member of a Committee of the Board of Directors,
such options to be issued on the date the Committees are established annually by
the Board of Directors. Each Option

2001 Stock Option Plan                 2

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granted to a Director under this Section 4 shall have a Fair Market Value
exercise price per share and shall be exercisable, cumulatively, to the extent
of twenty percent of the stock covered thereby on the first anniversary date of
the grant of the Option, thirty-five percent of the stock covered thereby on the
second anniversary date of the grant of the Option and forty-five percent of the
stock covered thereby on the third anniversary date of the grant of the Option.
In the event or upon the retirement of a Director if any Director standing for
re-election is not re-elected to the Board of Directors at any meeting, all of
such Director's unexercisable Options granted prior to the date of that meeting
will become exercisable immediately.

5.   Administration. The Plan shall be administered by the Board of Directors of
     --------------
the Company or by a committee composed of members of the Board (the Board of
Directors or any such committee being hereinafter referred to as the
"Committee"). With respect to directors and Officers eligible to receive Options
or Restricted Shares under this Plan, the Plan shall be administered by a
special committee (the "Special Committee") of the Board of Directors of the
Company all of whom are "Non-Employee Directors" as defined in Rule
16b-3(b)(2)(i) under Section 16 of the Securities Exchange Act of 1934 and
"outside directors" as defined in Section 162(m) of the Code. Only the Special
Committee may grant Options to directors and Officers eligible to receive
Options under this Plan. Subject to the provisions of the Plan, the Committee or
the Special Committee, as the case may be, shall have complete authority, in its
discretion, to make the following determinations with respect to each Option to
be granted by the Company and all Restricted Shares to be awarded by the
Company: (a) the employee, director or consultant to receive the Option or
award; (b) the time of granting the Option or award; (c) the number of shares
subject thereto; (d) the Option Price; (e) the Option period; and (f) the
restrictions. In making such determinations, the Committee may take into account
the nature of the services rendered by the respective employees, directors and
consultants their present and potential contributions to the success of the
Company and its subsidiaries, and such other factors as the Committee in its
discretion shall deem relevant. Subject to the provisions of the Plan, the
Committee shall also have complete authority to interpret the Plan, to
prescribe, amend and rescind rules and regulations relating to it, to determine
the terms and provisions of the respective Option Agreements or awards (which
need not be identical), and to make all other determinations necessary or
advisable for the administration of the Plan. The Committee's determinations on
the matters referred to in this Section 5 shall be conclusive.

     Notwithstanding the foregoing, the Committee shall not, without approval by
the holders of a majority of the voting capital stock of the Company voting on
the issue, (a) amend any Option to reduce the Option Price except as appropriate
to reflect a stock split, stock dividend or other capital change, (b) grant any
Option conditioned, directly or indirectly, upon the surrender of a prior
Option, or (c) grant any Option to any Optionee who shall have surrendered an
Option less than six months and one day before the grant of the new Option.

6.   Eligibility.  An Option or award may be granted only to an employee,
     -----------
director, or consultant of one or more of the Company and its subsidiaries.  A

2001 Stock Option Plan                 3

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Director of one or more of the Company and its subsidiaries who is not also an
employee of one or more of the Company and its subsidiaries shall not be
eligible to receive an Incentive Option. Any person who, within the meaning of
Section 422(b)(6) of the Code, is deemed to own stock possessing more than 10%
of the total combined voting power of all classes of stock of the Company (or of
its parent or subsidiary corporations) shall not be eligible to receive an
Option. In any given fiscal year, no Recipient may receive Options or awards or
both covering more than 500,000 shares of Stock (such number of shares to be
adjusted in accordance with Section 14).

7.   Time of Granting Options. The granting of an Option or an award shall take
     ------------------------
place at the time specified by the Committee. Only if expressly so provided by
the Committee, shall the Grant Date be the date on which an Option Agreement or
Restricted Share award shall have been duly executed and delivered by the
Company and the Recipient.

8.   Option Price.  The Option Price under each Incentive Option shall be not
     ------------
less than 100% of the Fair Market Value of Stock on the Grant Date; the Option
Price under each Nonstatutory Option shall not be so limited.

9.   Option Period. No Incentive Option may be exercised later than the tenth
     -------------
anniversary of the Grant Date. The period during which a Nonstatutory Option may
be exercised shall not be so limited. An Option may become exercisable in such
installments, cumulative or non-cumulative, as the Committee may determine. In
the case of an Option not otherwise immediately exercisable in full, the
Committee may accelerate the exercisability of such Option in whole or in part
at any time, provided the acceleration of the exercisability of any Incentive
Option would not cause the Option to fail to comply with the provisions of
Section 422 of the Code.

10.  Limit on Incentive Option Characterization. No Incentive Option shall be
     ------------------------------------------
considered an Incentive Option to the extent pursuant to its terms it would
permit the Recipient to purchase for the first time in any Vesting Year more
than the number of shares of Stock calculated by dividing the current limit by
the Fair Market Value on the Grant Date. The current limit for any Recipient for
any Vesting Year shall be $100,000 minus the aggregate Fair Market Value at the
date of grant of the number of shares of Stock available for purchase for the
first time in such Vesting Year under each other Incentive Option granted to the
Recipient under the Plan and each other incentive stock option granted to the
Recipient under any other incentive stock option plan of the Company (and its
parent and subsidiary corporations).

11.  Exercise of Option. An Option may be exercised in accordance with its terms
     ------------------
by written notice of intent to exercise the Option, specifying the number of
shares with respect to which the Option is then being exercised. The notice
shall be accompanied by (a) full payment for such shares in the form of check or
bank draft payable to the order of the Company, or (b) certificates representing
shares of the Stock with a current Market Value equal to the Option Price of the
shares to be purchased, or (c) irrevocable instructions to a brokerage firm to
sell a sufficient

2001 Stock Option Plan                 4

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number of the Option Shares to generate the full exercise price plus all
applicable withholding taxes and to pay over to the Company such proceeds of
sale Within 20 days thereafter, the Company shall deliver or cause to be
delivered to the Recipient evidence of ownership of the number of shares then
being purchased. Such shares shall be fully paid and nonassessable. If any law
or applicable regulation of the Securities and Exchange Commission or other
public regulatory authority shall require the Company or the Recipient to
register or qualify under the Securities Act of 1933, as amended, any similar
federal statute then in force or any state law regulating the sale of
securities, any Option Shares with respect to which notice of intent to exercise
shall have been delivered to the Company or to take any other action in
connection with such shares, the delivery of the certificate or certificates for
such shares shall be postponed until completion of the necessary action, which
the Company shall take in good faith and without delay. All such action shall be
taken by the Company at its own expense.

12.  Termination of Employment or Association. In the event that the Recipient's
     ----------------------------------------
employment or association with the Company is terminated, whether voluntarily or
by reason of dismissal or retirement, the Option, to the extent exercisable at
the date of termination, may be exercised by the Recipient within three months
after he or she ceases to be an employee, director or consultant; provided,
however, that in the case of the retirement of a Director who is not an employee
of the Company, the option may be exercised by the Recipient within two years
after the date of retirement, unless terminated earlier by its terms. In the
event that the Recipient's employment or association with the Company terminates
as a result of the death or disability of the Recipient, the Option may be fully
exercised by the Recipient or, in the event of the death of the Recipient by the
person to whom the option is transferred by will or the applicable laws of
descent and distribution, at any time within two years after the date of
termination, unless terminated earlier by its terms. Military or sick leave
shall not be deemed a termination of employment provided that it does not exceed
the longer of 90 days or the period during which the absent employee's
reemployment rights are guaranteed by statute or by contract. In the event that
the Recipient's employment or association with the Company terminates as a
result of the death or disability of the Recipient or, in the case of a Director
who is not an employee of the Company, as a result of the retirement of such
Director, the exercisability of any Option not otherwise immediately exercisable
in full held by such Recipient shall be accelerated and such Options shall be
fully exercisable as of the date of termination.

13.  Transferability of Options. Except as otherwise provided in this
     --------------------------
subsection, Options shall not be transferable, and no Option or interest therein
may be sold, transferred, pledged, assigned, or otherwise alienated or
hypothecated, other than by will or by the laws of descent and distribution. All
of a Recipient's rights in any Option may be exercised during the life of the
Recipient only by the Recipient or the Recipient's legal representative.
However, the Committee may, at or after the grant of a Nonstatutory Option,
provide that such Option may be transferred by the Recipient to an immediate
family member; provided, however, that any such transfer is without payment of
any consideration whatsoever and that no transfer of an Option shall be valid
unless first approved by the Committee, acting in its sole

2001 Stock Option Plan                 5

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discretion. For this purpose, "immediate family member" means an individual's
parents, siblings, spouse and issue, spouses of such issue and any trust for the
benefit of, or the legal representative of, any of the preceding persons, or any
partnership substantially all of the partners of which are one or more of such
persons or the Recipient.

14.  Adjustment of Number of Option Shares. In the event of any change in
     -------------------------------------
corporate capitalization, such as a stock split or a corporate transaction, such
as any merger, consolidation, separation, including a spin-off, or other
distribution of stock or property of the Company, any reorganization (whether or
not such reorganization comes within the definition of such term in Section 368
of the Code) or any partial or complete liquidation of the Company, the
Committee or Board may make such substitution or adjustments in the aggregate
number and kind of shares reserved for issuance under the Plan, in the number,
kind and Option Price of shares subject to outstanding Options, and/or such
other equitable substitution or adjustments as it may determine to be
appropriate in its sole discretion; provided, however, that the number of shares
subject to any Option shall always be a whole number.

15.  Restricted Shares. Each Restricted Share award shall be evidenced by a
     -----------------
Restricted Share award agreement that shall specify the number of Restricted
Shares awarded and such other provisions as the Board or Committee shall
determine. The Restricted Shares may not be sold, transferred, pledged,
assigned, or otherwise alienated or hypothecated until satisfaction of the
conditions as specified by the Board or Committee and set forth in the
Restricted Share award agreement. All rights with respect to Restricted Shares
granted to a Recipient under the Plan shall be available during his or her
lifetime only to the Recipient. Recipients holding Restricted Shares may
exercise full voting rights with respect to those Restricted Shares. Recipients
holding Restricted Shares will receive such cash dividends paid with respect to
the Restricted Shares as may be declared while they are so held. Without
limiting the generality of the preceding sentence, if the grant or vesting of
Restricted Shares granted to a Recipient is designed to comply with the
requirements of the performance-based exception under Section 162(m) of the
Code, the Board or Committee may apply any restrictions it deems appropriate to
the payment of dividends declared with respect to such Restricted Shares, such
that the dividends and/or the Restricted Shares maintain eligibility for the
performance-based exception.

16.  Transferability. The Recipient agrees that he or she will not transfer any
     ---------------
of the Option Shares or Restricted Shares unless (i) such shares are registered
under the provisions of the Securities Act of 1933, as amended, or (ii) at the
request of the Company, the transferee represents, in form satisfactory to
counsel for the Company, that he or she will not transfer, sell or otherwise
dispose of the Option Shares at any time purchased by him or her in a manner
which would violate the Securities Act of 1933, as amended (the "Act"), and the
regulations of the Securities and Exchange Commission thereunder. The Recipient
agrees that the Company may, at its discretion, make a notation on any
certificates issued upon exercise of any portion of the Option to the effect
that such certificate may not be transferred except after receipt by the Company
of an opinion of counsel satisfactory to it to the

2001 Stock Option Plan                 6

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effect that such transfer will not violate the Act and the regulations
thereunder, and may issue "stop transfer" instructions to its transfer agent, if
any, and make a "stop transfer" notation on its books as appropriate.

17.  Change of Control.
     -----------------

     (a)  Vesting of Options. In the event of a Change of Control, any Options
          ------------------
outstanding as of the date such Change of Control is determined to have
occurred, and which are not then exercisable and vested, shall become fully
exercisable and vested to the full extent of the original grant.

     (b)  Elimination of Restrictions. In the event of a Change of Control, all
          ---------------------------
restrictions with respect to all Restricted Shares outstanding as of the date
such Change of Control is determined to have occurred shall be eliminated.

     (c)  Change of Control Cash-Out. During the 60-day period from and after a
          --------------------------
Change of Control (the "Exercise Period"), unless the Committee shall determine
otherwise at the time of grant of an Option, each Recipient who is an employee
or consultant of one or more of the Company and its subsidiaries shall have the
right, whether or not the Option is fully exercisable and in lieu of the payment
of the Option Price for the shares of Stock being purchased under the Option and
by giving notice to the Company, to elect (within the Exercise Period) to
surrender all or part of the Option to the Company and to receive cash, within
30 days of such notice, in an amount equal to the amount by which the Change of
Control Price per share of Stock on the date of such election shall exceed the
Option Price per share of Stock under the Option (the "Spread") multiplied by
the number of shares of Stock as to which the right granted under this Section
17 shall have been exercised. Notwithstanding the foregoing, if any right
granted pursuant to this Section 17 would make a Change of Control transaction
ineligible for pooling-of-interests accounting under APB No. 16 that but for the
nature of such grant would otherwise be eligible for such accounting treatment,
the Committee shall have the ability to substitute for the cash payable pursuant
to such right Stock or other securities with a fair market value equal to the
cash that would otherwise be payable hereunder.

     (d)  Definition of Change of Control Price. "Change of Control Price" means
          -------------------------------------
the higher of (i) the highest reported sales price, regular way, of a share of
Stock in any transaction reported on the New York Stock Exchange Composite Tape
or other national exchange on which such shares are listed or on NASDAQ National
Market during the 60-day period prior to and including the date of a Change of
Control or (ii) if the Change of Control is the result of a tender or exchange
offer or a Corporate Transaction, the highest price per share of Stock paid in
such tender or exchange offer or Corporate Transaction; provided, however, that
in the case of Incentive Options, the Change of Control Price shall be in all
cases the fair market value of the Stock on the date the right under Section
17(b) associated with such Incentive Option is exercised. To the extent that the
consideration paid in any such transaction described above consists all or in
part of securities or other noncash consideration, the value of such securities
or other noncash consideration shall be determined in the sole discretion of the
Board.

2001 Stock Option Plan                 7

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     (e)  Definition of Change of Control. For purposes of the Plan, a "Change
          -------------------------------
of Control" shall mean:

          (i)    The acquisition by any individual, entity or group (within
the meaning of Section 13(d)(3) or 14(d)(2) of the Securities Exchange Act of
1934, as amended (the "Exchange Act")) (a "Person") of beneficial ownership
(within the meaning of Rule 13d-3 promulgated under the Exchange Act) of 20% or
more of either (a) the then outstanding shares of Stock (the "Outstanding
Company Common Stock") or (b) the combined voting power of the then outstanding
voting securities of the Company entitled to vote generally in the election of
directors (the "Outstanding Company Voting Securities"); provided, however, that
for purposes of this subsection (i), the following acquisitions shall not
constitute a Change of Control: (A) any acquisition directly from the Company,
(B) any acquisition by the Company, (C) any acquisition by any employee benefit
plan (or related trust) sponsored or maintained by the Company or any
corporation controlled by the Company or (d) any acquisition pursuant to a
transaction which complies with clauses (A), (B) and (C) of subsection (iii) of
this Section 17; or

          (ii)   Individuals who, as of September 12, 2001, constitute the
Board (the "Incumbent Board") cease for any reason to constitute at least a
majority of the Board; provided, however, that any individual becoming a
director subsequent to September 12, 2001 whose election, or nomination for
election by the Company's stockholders, was approved by a vote of at least a
majority of the directors then comprising the Incumbent Board shall be
considered as though such individual were a member of the Incumbent Board, but
excluding, for this purpose, any such individual whose initial assumption of
office occurs as a result of an actual or threatened election contest with
respect to the election or removal of directors or other actual or threatened
solicitation of proxies or consents by or on behalf of a Person other than the
Board; or

          (iii)  Consummation of a reorganization, merger or consolidation or
sale or other disposition of all or substantially all of the assets of the
Company or the acquisition of assets of another entity (a "Corporate
Transaction"), in each case, unless, following such Corporate Transaction, (A)
all or substantially all of the individuals and entities who were the beneficial
owners, respectively, of the Outstanding Company Common Stock and Outstanding
Company Voting Securities immediately prior to such Corporate Transaction
beneficially own, directly or indirectly, more than 60% of, respectively, the
then outstanding shares of common stock and the combined voting power of the
then outstanding voting securities entitled to vote generally in the election of
directors, as the case may be, of the corporation resulting from such Corporate
Transaction (including, without limitation, a corporation which as a result of
such transaction owns the Company or all or substantially all of the Company's
assets either directly or through one or more subsidiaries) in substantially the
same proportions as their immediately prior to such Corporate Transaction of the
Outstanding Company Common Stock and Outstanding Company Voting Securities, as
the case may be, (B) no Person (excluding any employee benefit plan (or related
trust) of the Company or such

2001 Stock Option Plan                 8

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corporation resulting from such Corporate Transaction) beneficially owns,
directly or indirectly, 20% or more of, respectively, the then outstanding
shares of common stock of the corporation resulting from such Corporate
Transaction or the combined voting power of the then outstanding voting of such
corporation except to the extent that such ownership existed prior to the
Corporate Transaction and (C) at least a majority of the members of the board of
directors of the corporation resulting from such Corporate Transaction were
members of the Incumbent Board at the time of the execution of the initial
agreement, or of the action of the Board, providing for such Corporate
Transaction; or

          (iv)   Approval by the stockholders of the Company of a complete
liquidation or dissolution of the Company.

     18.  Reservation of Stock. The Company shall at all times reserve and keep
          --------------------
available such number of shares of the Stock as will be sufficient to satisfy
the requirements of this Plan and shall pay all fees and expenses necessarily
incurred by the Company in connection therewith.

     19.  Limitation of Rights in the Option Shares. A Recipient shall not be
          -----------------------------------------
deemed for any purpose to be a stockholder of the Company with respect to any of
the Option Shares except to the extent that the Option shall have been exercised
with respect thereto and, in addition, a certificate shall have been issued
therefore and delivered to the Recipient. Any Stock issued pursuant to the
Option shall be subject to all restrictions upon the transfer thereof which may
be now or hereafter imposed by the Articles of Organization or the By-laws of
the Company.

     20.  Termination and Amendment of the Plan. The Board may at any time
          -------------------------------------
terminate the Plan or make such modifications of the Plan as it shall deem
advisable; provided that no modification shall be effective to increase the
           --------
number of shares of Stock subject to the Plan or change the number or
classification of employees eligible to receive Options until such modification
is approved by the holders of a majority of the Company's common stock
represented in person or by proxy and voting at a meeting. No termination or
amendment of the Plan may, without the consent of the Recipient to whom any
Option shall theretofore have been granted, adversely affect the rights of such
Recipient under such Option.

     21.  Notices. Any communication or notice required or permitted to be given
          -------
under the Plan shall be in writing, and mailed by registered or certified mail
or delivered in hand, if to the Company, to its Treasurer at University Avenue,
Westwood, Massachusetts 02090 and, if to the Recipient, to the address as the
Recipient shall last have furnished to the communicating party.

     22.  Withholding;  Notice of Disposition of Stock Prior to Expiration of
          -------------------------------------------------------------------
Specified Holding Period.
-------------------------

          (a)  Whenever shares are to be issued in satisfaction of an Option
granted hereunder, the Company shall have the right to require the Recipient to
remit to the Company an amount sufficient to satisfy federal, state, local or
other withholding

2001 Stock Option Plan                 9

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tax requirements if and to the extent required by law (whether so required to
secure for the Company an otherwise available tax deduction or otherwise) prior
to the delivery of any certificate or certificates for such shares.

          (b)  The Company may require as a condition to the issuance of shares
covered by an Incentive Option that the party exercising such Option give a
written representation to the Company which is satisfactory in form and
substance to its counsel and upon which the Company may reasonably rely, that he
or she will report to the Company any disposition of such shares prior to the
expiration of the holding periods specified by Section 422(a)(1) of the Code. If
and to the extent that the realization of income in such a disposition imposes
upon the Company federal, state, local or other withholding tax requirements, or
any other available tax deduction, the Company shall have the right to require
that the recipient remit to the Company an amount sufficient to satisfy those
requirements; and the Company may require as a condition to the issuance of
shares covered by an Incentive Option that the party exercising such option give
a satisfactory written representation promising to make such a remittance.

2001 Stock Option Plan                 10

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