<Page>

                                                                   EXHIBIT 3.10

                                     BY-LAWS

                                       OF

                                  PREFACE, INC.

                            (a Delaware 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.

          SECTION 5.  QUORUM. Except as otherwise provided by law or the
Corporation's Certificate of Incorporation, a quorum for the transaction of
business at

<Page>

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 shareholder 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.

          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,

                                        2
<Page>

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 two
(2), 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.

          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

                                        3
<Page>

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, 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.

                                        4
<Page>

          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.

                                   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

                                        5
<Page>

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; 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.

          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.

                                        6
<Page>

          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. 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 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

                                        7
<Page>

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. 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, 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.

          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 of facsimile signature of an officer of

                                        8
<Page>

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.

                                  ARTICLE VIII

                                  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
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.

                                        9
<Page>

                                   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 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.

                                       10
<Page>

          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.

                                       11