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                                                                    Exhibit 3.25


                                     BYLAWS

                                       OF

                             UNIPLAST HOLDINGS INC.,

                             a Delaware corporation

                               (the "Corporation")


                                    ARTICLE I

                                  Stockholders

                  SECTION 1. Annual Meetings. The annual meeting of stockholders
for the election of directors and for the transaction of such other business as
may properly come before the meeting shall be held each year at such date and
time, within or without the State of Delaware, as the Board of Directors shall
determine.

                  SECTION 2. Special Meetings. Special meetings of stockholders
for the transaction of such business as may properly come before the meeting may
be called by order of the Board of Directors or by stockholders holding together
at least a majority of all the shares of the Corporation entitled to vote at the
meeting, and shall be held at such date and time, within or without the State of
Delaware, as may be specified by such order. Whenever the directors shall fail
to fix such place, the meeting shall be held at the principal executive office
of the Corporation.

                  SECTION 3. Notice of Meetings. Written notice of all meetings
of the stockholders shall be mailed or delivered to each stockholder not less
than 10 nor more than 60 days prior to the meeting. Notice of any special
meeting shall state in general terms the purpose or purposes for which the
meeting is to be held.

                  SECTION 4. Stockholder Lists. The officer who has charge of
the stock ledger of the Corporation shall prepare and make, at least 10 days
before every meeting of stockholders, a complete list of the stockholders
entitled to vote at the meeting, arranged in alphabetical order, and showing the
address of each stockholder and the number of shares registered in the name of
each stockholder. Such list shall be open to the examination of any stockholder,
for any purpose germane to the meeting, either at a place within the city where
the meeting is to be held, which place shall be specified in the notice of the
meeting, or, if not so specified, at the place where the meeting is to be held.
The list shall also be produced and kept at the time and place of the meeting
during the whole time thereof, and may be inspected by any stockholder who is
present.

                  The stock ledger shall be the only evidence as to who are the
stockholders entitled to examine the stock ledger, the list required by this
section or the books of the Corporation, or to vote in person or by proxy at any
meeting of stockholders.


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                  SECTION 5. Quorum. Except as otherwise provided by law or the
Corporation's certificate of incorporation, a quorum for the transaction of
business at any meeting of stockholders shall consist of the holders of record
of a majority of the issued and outstanding shares of the capital stock of the
Corporation entitled to vote at the meeting, present in person or by proxy. At
all meetings of the stockholders at which a quorum is present, all matters,
except as otherwise provided by law or the Certificate of Incorporation, shall
be decided by the vote of the holders of a majority of the shares entitled to
vote thereat present in person or by proxy. If there be no such quorum, the
holders of a majority of such shares so present or represented may adjourn the
meeting from time to time, without further notice, until a quorum shall have
been obtained. When a quorum is once present it is not broken by the subsequent
withdrawal of any stockholder.

                  SECTION 6. Organization. Meetings of stockholders shall be
presided over by the Chairman, if any, or if none or in the Chairman's absence
the Vice-Chairman, if any, or if none or in the Vice-Chairman's absence the
President, if any, or if none or in the President's absence a Vice-President,
or, if none of the foregoing is present, by a chairman to be chosen by the
stockholders entitled to vote who are present in person or by proxy at the
meeting. The Secretary of the Corporation, or in the Secretary's absence an
Assistant Secretary, shall act as secretary of every meeting, but if neither the
Secretary nor an Assistant Secretary is present, the presiding officer of the
meeting shall appoint any person present to act as secretary of the meeting.

                  SECTION 7. Voting; Proxies; Required Vote.

                  (a)      At each meeting of stockholders, every stockholder
shall be entitled to vote in person or by proxy appointed by instrument in
writing, subscribed by such stockholder or by such stockholder's duly authorized
attorney-in-fact (but no such proxy shall be voted or acted upon after three
years from its date, unless the proxy provides for a longer period), and, unless
the certificate of incorporation provides otherwise, shall have one vote for
each share of stock entitled to vote registered in the name of such stockholder
on the books of the Corporation on the applicable record date fixed pursuant to
these By-laws. At all elections of directors the voting may but need not be by
ballot and a plurality of the votes cast there shall elect. Except as otherwise
required by law or the Certificate of Incorporation, any other action shall be
authorized by a majority of the votes cast.

                  (b)      Any action required or permitted to be taken at any
meeting of stockholders may, except as otherwise required by law or the
certificate of incorporation, be taken without a meeting, without prior notice
and without a vote, if a consent in writing, setting forth the action so taken,
shall be signed by the holders of record of the issued and outstanding capital
stock of the Corporation having a majority of votes that would be necessary to
authorize or take such action at a meeting at which all shares entitled to vote
thereon were present and voted, and the writing or writings are filed with the
permanent records of the Corporation. Prompt notice of the taking of corporate
action without a meeting by less than unanimous written consent shall be given
to those stockholders who have not consented in writing.


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                  SECTION 8. Inspectors. The Board of Directors, in advance of
any meeting, may, but need not, appoint one or more inspectors of election to
act at the meeting or any adjournment thereof. If an inspector or inspectors are
not so appointed, the person presiding at the meeting may, but need not, appoint
one or more inspectors. In case any person who may be appointed as an inspector
fails to appear or act, the vacancy may be filled by appointment made by the
directors in advance of the meeting or at the meeting by the person presiding
thereat. Each inspector, if any, before entering upon the discharge of his or
her duties, shall take and sign an oath faithfully to execute the duties of
inspector at such meeting with strict impartiality and according to the best of
his ability. The inspectors, if any, shall determine the number of shares of
stock outstanding and the voting power of each, the shares of stock represented
at the meeting, the existence of a quorum, and the validity and effect of
proxies, and shall receive votes, ballots or consents, hear and determine all
challenges and questions arising in connection with the right to vote, count and
tabulate all votes, ballots or consents, determine the result, and do such acts
as are proper to conduct the election or vote with fairness to all stockholders.
On request of the person presiding at the meeting, the inspector or inspectors,
if any, shall make a report in writing of any challenge, question or matter
determined by such inspector or inspectors and execute a certificate of any fact
found by such inspector or inspectors.


                                   ARTICLE II

                               Board of Directors

                  SECTION 1. General Powers. The business, property and affairs
of the Corporation shall be managed by, or under the direction of, the Board of
Directors.

                  SECTION 2. Qualification; Number; Term; Remuneration. (a) Each
director shall be at least 18 years of age. A director need not be a
stockholder, a citizen of the United States, or a resident of the State of
Delaware. The number of directors constituting the entire Board shall be six (6)
, or such larger number as may be fixed from time to time by action of the
stockholders or Board of Directors, one of whom may be selected by the Board of
Directors to be its Chairman. The use of the phrase "entire Board" herein refers
to the total number of directors which the Corporation would have if there were
no vacancies.

                  (b)      Directors who are elected at an annual meeting of
stockholders, and directors who are elected in the interim to fill vacancies and
newly created directorships, shall hold office until the next annual meeting of
stockholders and until their successors are elected and qualified or until their
earlier resignation or removal.

                  (c)      Directors may be paid their expenses, if any, of
attendance at each meeting of the Board of Directors and may be paid a fixed sum
for attendance at each meeting of the Board of Directors or a stated salary as
director. No such payment shall preclude any director from serving the
Corporation in any other capacity and receiving compensation therefor. Members
of special or standing committees may be allowed like compensation for attending
committee meetings.


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                  SECTION 3. Quorum and Manner of Voting. Except as otherwise
provided by law, a majority of the entire Board shall constitute a quorum. A
majority of the directors present, whether or not a quorum is present, may
adjourn a meeting from time to time to another time and place without notice.
The vote of the majority of the directors present at a meeting at which a quorum
is present shall be the act of the Board of Directors.

                  SECTION 4. Places of Meetings. Meetings of the Board of
Directors may be held at any place within or without the State of Delaware, as
may from time to time be fixed by resolution of the Board of Directors, or as
may be specified in the notice of meeting.

                  SECTION 5. Annual Meeting. Following the annual meeting of
stockholders, the newly elected Board of Directors shall meet for the purpose of
the election of officers and the transaction of such other business as may
properly come before the meeting. Such meeting may be held without notice
immediately after the annual meeting of stockholders at the same place at which
such stockholders' meeting is held.

                  SECTION 6. Regular Meetings. Regular meetings of the Board of
Directors shall be held at such times and places as the Board of Directors shall
from time to time by resolution determine. Notice need not be given of regular
meetings of the Board of Directors held at times and places fixed by resolution
of the Board of Directors.

                  SECTION 7. Special Meetings. Special meetings of the Board of
Directors shall be held whenever called by the Chairman of the Board or
President or by a majority of the directors then in office.

                  SECTION 8. Notice of Meetings. A notice of the place, date and
time and the purpose or purposes of each meeting of the Board of Directors shall
be given to each director by mailing the same at least two days before the
special meeting, or by telegraphing or telephoning the same or by delivering the
same personally not later than the day before the day of the meeting.

                  SECTION 9. Organization. At all meetings of the Board of
Directors, the Chairman, if any, or if none or in the Chairman's absence or
inability to act the President, or in the President's absence or inability to
act any Vice-President who is a member of the Board of Directors, or in such
Vice-President's absence or inability to act a chairman chosen by the directors,
shall preside. The Secretary of the Corporation shall act as secretary at all
meetings of the Board of Directors when present, and, in the Secretary's
absence, the presiding officer may appoint any person to act as secretary.

                  SECTION 10. Resignation. Any director may resign at any time
upon written notice to the Corporation and such resignation shall take effect
upon receipt thereof by the President or Secretary, unless otherwise specified
in the resignation. Any or all of the directors may be removed, with or without
cause, by the holders of a majority of the shares of stock outstanding and
entitled to vote for the election of directors.


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                  SECTION 11. Vacancies. Unless otherwise provided in these
By-laws, vacancies on the Board of Directors, whether caused by resignation,
death, disqualification, removal, an increase in the authorized number of
directors or otherwise, may be filled by the affirmative vote of a majority of
the remaining directors, although less than a quorum, or by a sole remaining
director, or at a special meeting of the stockholders, by the holders of shares
entitled to vote for the election of directors.

                  SECTION 12. Action by Written Consent. Any action required or
permitted to be taken at any meeting of the Board of Directors may be taken
without a meeting if all the directors consent thereto in writing, and the
writing or writings are filed with the minutes of proceedings of the Board of
Directors.


                                   ARTICLE III

                                   Committees

                  SECTION 1. Appointment. From time to time the Board of
Directors by a resolution adopted by a majority of the entire Board may appoint
any committee or committees for any purpose or purposes, to the extent lawful,
which shall have powers as shall be determined and specified by the Board of
Directors in the resolution of appointment.

                  SECTION 2. Procedures, Quorum and Manner of Acting. Each
committee shall fix its own rules of procedure, and shall meet where and as
provided by such rules or by resolution of the Board of Directors. Except as
otherwise provided by law, the presence of a majority of the then appointed
members of a committee shall constitute a quorum for the transaction of business
by that committee, and in every case where a quorum is present the affirmative
vote of a majority of the members of the committee present shall be the act of
the committee. Each committee shall keep minutes of its proceedings, and actions
taken by a committee shall be reported to the Board of Directors.

                  SECTION 3. Action by Written Consent. Any action required or
permitted to be taken at any meeting of any committee of the Board of Directors
may be taken without a meeting if all the members of the committee consent
thereto in writing, and the writing or writings are filed with the minutes of
proceedings of the committee.

                  SECTION 4. Term; Termination. In the event any person shall
cease to be a director of the Corporation, such person shall simultaneously
therewith cease to be a member of any committee appointed by the Board of
Directors.


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                                   ARTICLE IV

                                    Officers

                  SECTION 1. Election and Qualifications. The Board of Directors
shall elect the officers of the Corporation, which shall include a President and
a Secretary, and may include, by election or appointment, one or more
Vice-Presidents (any one or more of whom may be given an additional designation
of rank or function), a Treasurer and such assistant secretaries, such Assistant
Treasurers and such other officers as the Board may from time to time deem
proper. Each officer shall have such powers and duties as may be prescribed by
these By-laws and as may be assigned by the Board of Directors or the President.
Any two or more offices may be held by the same person except the offices of
President and Secretary.

                  SECTION 2. Term of Office and Remuneration. The term of office
of all officers shall be one year and until their respective successors have
been elected and qualified, but any officer may be removed from office, either
with or without cause, at any time by the Board of Directors. Any vacancy in any
office arising from any cause may be filled for the unexpired portion of the
term by the Board of Directors. The remuneration of all officers of the
Corporation may be fixed by the Board of Directors or in such manner as the
Board of Directors shall provide.

                  SECTION 3. Resignation; Removal. Any officer may resign at any
time upon written notice to the Corporation and such resignation shall take
effect upon receipt thereof by the President or Secretary, unless otherwise
specified in the resignation. Any officer shall be subject to removal, with or
without cause, at any time by vote of a majority of the entire Board.

                  SECTION 4. Chairman of the Board. The Chairman of the Board of
Directors, if there be one, shall preside at all meetings of the Board of
Directors and shall have such other powers and duties as may from time to time
be assigned by the Board of Directors.

                  SECTION 5. President and Chief Executive Officer. The
President shall be the chief executive officer of the Corporation, and shall
have such duties as customarily pertain to that office. The President shall have
general management and supervision of the property, business and affairs of the
Corporation and over its other officers; may appoint and remove assistant
officers and other agents and employees, other than officers referred to in
Section 1 of this Article IV; and may execute and deliver in the name of the
Corporation powers of attorney, contracts, bonds and other obligations and
instruments.

                  SECTION 6. Vice-President. A Vice-President may execute and
deliver in the name of the Corporation contracts and other obligations and
instruments pertaining to the regular course of the duties of said office, and
shall have such other authority as from time to time may be assigned by the
Board of Directors or the President.

                  SECTION 7. Treasurer. The Treasurer shall in general have all
duties incident to the position of Treasurer and such other duties as may be
assigned by the Board of Directors or the President.


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                  SECTION 8. Secretary. The Secretary shall in general have all
the duties incident to the office of Secretary and such other duties as may be
assigned by the Board of Directors or the President.

                  SECTION 9. Assistant Officers. Any assistant officer shall
have such powers and duties of the officer such assistant officer assists as
such officer or the Board of Directors shall from time to time prescribe.


                                    ARTICLE V

                                Books and Records

                  SECTION 1. Location. The books and records of the Corporation
may be kept at such place or places within or outside the State of Delaware as
the Board of Directors or the respective officers in charge thereof may from
time to time determine. The record books containing the names and addresses of
all stockholders, the number and class of shares of stock held by each and the
dates when they respectively became the owners of record thereof shall be kept
by the Secretary as prescribed in the By-laws and by such officer or agent as
shall be designated by the Board of Directors.

                  SECTION 2. Addresses of Stockholders. Notices of meetings and
all other corporate notices may be delivered personally or mailed to each
stockholder at the stockholder's address as it appears on the records of the
Corporation.

                  SECTION 3. Fixing Date for Determination of Stockholders of
Record. (a) In order that the Corporation may determine the stockholders
entitled to notice of or to vote at any meeting of stockholders or any
adjournment thereof, the Board of Directors may fix a record date, which record
date shall not be more than 60 nor less than 10 days before the date of such
meeting. If no record date is fixed by the Board of Directors, the record date
for determining stockholders entitled to notice of or to vote at a meeting of
stockholders shall be at the close of business on the day next preceding the day
on which notice is given, or, if notice is waived, at the close of business on
the day next preceding the day on which the meeting is held. A determination of
stockholders of record entitled to notice of or to vote at a meeting of
stockholders shall apply to any adjournment of the meeting; provided, however,
that the Board of Directors may fix a new record date for the adjourned meeting.

                  (b) In order that the Corporation may determine the
stockholders entitled to consent to corporate action in writing without a
meeting, the Board of Directors may fix a record date, which date shall not be
more than 10 days after the date upon which the resolution fixing the record
date is adopted by the Board of Directors. If no record date has been fixed by
the Board of Directors, the record date for determining stockholders entitled to
consent to corporate action in writing without a meeting, when no prior action
by the Board of Directors is required, shall be the first date on which a signed
written consent setting forth the action taken or proposed to be taken is
delivered to the Corporation by delivery to its registered office in this State,
its principal place of business, or an officer or agent of the Corporation
having custody of the book


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in which proceedings of meetings of stockholders are recorded. Delivery made to
the Corporation's registered office shall be by hand or by certified or
registered mail, return receipt requested. If no record date has been fixed by
the Board of Directors and prior action by the Board of Directors is required by
this chapter, the record date for determining stockholders entitled to consent
to corporate action in writing without a meeting shall be at the close of
business on the day on which the Board of Directors adopts the resolution taking
such prior action.

                  (c) In order that the Corporation may determine the
stockholders entitled to receive payment of any dividend or other distribution
or allotment of any rights or the stockholders entitled to exercise any rights
in respect of any change, conversion or exchange of stock, or for the purpose of
any other lawful action, the Board of Directors may fix a record date, which
record date shall be not more than 60 days prior to such action. If no record
date is fixed, the record date for determining stockholders for any such purpose
shall be at the close of business on the day on which the Board of Directors
adopts the resolution relating thereto.


                                   ARTICLE VI

                         Certificates Representing Stock

                  SECTION 1. Certificates; Signatures. The shares of the
Corporation shall be represented by certificates, provided that the Board of
Directors of the Corporation may provide by resolution or resolutions that some
or all of any or all classes or series of its stock shall be uncertificated
shares. Any such resolution shall not apply to shares represented by a
certificate until such certificate is surrendered to the Corporation.
Notwithstanding the adoption of such a resolution by the Board of Directors,
every holder of stock represented by certificates and upon request every holder
of uncertificated shares shall be entitled to have a certificate, signed by or
in the name of the Corporation by the Chairman or Vice-Chairman of the Board of
Directors, or the President or Vice-President, and by the Treasurer or an
Assistant Treasurer, or the Secretary or an Assistant Secretary of the
Corporation, representing the number of shares registered in certificate form.
Any and all signatures on any such certificate may be facsimiles. In case any
officer, transfer agent or registrar who has signed or whose facsimile signature
has been placed upon a certificate shall have ceased to be such officer,
transfer agent or registrar before such certificate is issued, it may be issued
by the Corporation with the same effect as if he were such officer, transfer
agent or registrar at the date of issue. The name of the holder of record of the
shares represented thereby, with the number of such shares and the date of
issue, shall be entered on the books of the Corporation.

                  SECTION 2. Transfers of Stock. Upon compliance with provisions
restricting the transfer or registration of transfer of shares of stock, if any,
shares of capital stock shall be transferable on the books of the Corporation
only by the holder of record thereof in person, or by duly authorized attorney,
upon surrender and cancellation of certificates for a like number of shares,
properly endorsed, and the payment of all taxes due thereon.


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                  SECTION 3. Fractional Shares. The Corporation may, but shall
not be required to, issue certificates for fractions of a share where necessary
to effect authorized transactions, or the Corporation may pay in cash the fair
value of fractions of a share as of the time when those entitled to receive such
fractions are determined, or it may issue scrip in registered or bearer form
over the manual or facsimile signature of an officer of the Corporation or of
its agent, exchangeable as therein provided for full shares, but such scrip
shall not entitle the holder to any rights of a stockholder except as therein
provided.

                  The Board of Directors shall have power and authority to make
all such rules and regulations as it may deem expedient concerning the issue,
transfer and registration of certificates representing shares of the
Corporation.

                  SECTION 4. Lost, Stolen or Destroyed Certificates. The
Corporation may issue a new certificate of stock in place of any certificate,
theretofore issued by it, alleged to have been lost, stolen or destroyed, and
the Board of Directors may require the owner of any lost, stolen or destroyed
certificate, or his legal representative, to give the Corporation a bond
sufficient to indemnify the Corporation against any claim that may be made
against it on account of the alleged loss, theft or destruction of any such
certificate or the issuance of any such new certificate.


                                   ARTICLE VII

                                    Dividends

                  Subject always to the provisions of law and the Certificate of
Incorporation, the Board of Directors shall have full power to determine whether
any, and, if any, what part of any, funds legally available for the payment of
dividends shall be declared as dividends and paid to stockholders; the division
of the whole or any part of such funds of the Corporation shall rest wholly
within the lawful discretion of the Board of Directors, and it shall not be
required at any time, against such discretion, to divide or pay any part of such
funds among or to the stockholders as dividends or otherwise; and before payment
of any dividend, there may be set aside out of any funds of the Corporation
available for dividends such sum or sums as the Board of Directors from time to
time, in its absolute discretion, thinks proper as a reserve or reserves to meet
contingencies, or for equalizing dividends, or for repairing or maintaining any
property of the Corporation, or for such other purpose as the Board of Directors
shall think conducive to the interest of the Corporation, and the Board of
Directors may modify or abolish any such reserve in the manner in which it was
created.

                                  Ratification

                  Any transaction, questioned in any law suit on the ground of
lack of authority, defective or irregular execution, adverse interest of
director, officer or stockholder, non-disclosure, miscomputation, or the
application of improper principles or practices of accounting, may be ratified
before or after judgment, by the Board of Directors or by the stockholders, and
if so ratified shall have the same force and effect as if the questioned
transaction had been


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originally duly authorized. Such ratification shall be binding upon the
Corporation and its stockholders and shall constitute a bar to any claim or
execution of any judgment in respect of such questioned transaction.


                                   ARTICLE IX

                                 Corporate Seal

                  The corporate seal shall have inscribed thereon the name of
the Corporation and the year of its incorporation, and shall be in such form and
contain such other words and/or figures as the Board of Directors shall
determine. The corporate seal may be used by printing, engraving, lithographing,
stamping or otherwise making, placing or affixing, or causing to be printed,
engraved, lithographed, stamped or otherwise made, placed or affixed, upon any
paper or document, by any process whatsoever, an impression, facsimile or other
reproduction of said corporate seal.


                                    ARTICLE X

                                   Fiscal Year

                  The fiscal year of the Corporation shall be fixed, and shall
be subject to change, by the Board of Directors. Unless otherwise fixed by the
Board of Directors, the fiscal year of the Corporation shall be the calendar
year.


                                   ARTICLE XI

                                Waiver of Notice

                  Whenever notice is required to be given by these By-laws or by
the Certificate of Incorporation or by law, a written waiver thereof, signed by
the person or persons entitled to said notice, whether before or after the time
stated therein, shall be deemed equivalent to notice.


                                   ARTICLE XII

                     Bank Accounts, Drafts, Contracts, Etc.

                  SECTION 1. Bank Accounts and Drafts. In addition to such bank
accounts as may be authorized by the Board of Directors, the primary financial
officer or any person designated by said primary financial officer, whether or
not an employee of the Corporation, may authorize such bank accounts to be
opened or maintained in the name and on behalf of the Corporation as he may deem
necessary or appropriate, payments from such bank accounts to be


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made upon and according to the check of the Corporation in accordance with the
written instructions of said primary financial officer, or other person so
designated by the Treasurer.

                  SECTION 2. Contracts. The Board of Directors may authorize any
person or persons, in the name and on behalf of the Corporation, to enter into
or execute and deliver any and all deeds, bonds, mortgages, contracts and other
obligations or instruments, and such authority may be general or confined to
specific instances.

                  SECTION 3. Proxies; Powers of Attorney; Other Instruments. The
Chairman, the President or any other person designated by either of them shall
have the power and authority to execute and deliver proxies, powers of attorney
and other instruments on behalf of the Corporation in connection with the rights
and powers incident to the ownership of stock by the Corporation. The Chairman,
the President or any other person authorized by proxy or power of attorney
executed and delivered by either of them on behalf of the Corporation may attend
and vote at any meeting of stockholders of any company in which the Corporation
may hold stock, and may exercise on behalf of the Corporation any and all of the
rights and powers incident to the ownership of such stock at any such meeting,
or otherwise as specified in the proxy or power of attorney so authorizing any
such person. The Board of Directors, from time to time, may confer like powers
upon any other person.

                  SECTION 4. Financial Reports. The Board of Directors may
appoint the primary financial officer or other fiscal officer and/or the
Secretary or any other officer to cause to be prepared and furnished to
stockholders entitled thereto any special financial notice and/or financial
statement, as the case may be, which may be required by any provision of law.


                                  ARTICLE XIII

                                   Amendments

                  The Board of Directors shall have power to adopt, amend or
repeal By-laws. By-laws adopted by the Board of Directors may be repealed or
changed, and new By-laws made, by the stockholders, and the stockholders may
prescribe that any By-law made by them shall not be altered, amended or repealed
by the Board of Directors.


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