BY-LAWS


                                      of


                                 ABIOMED, Inc.


                            A Delaware Corporation













                                                 Adopted:  June 4, 1987
                                                 Amended:  July 2, 1990 and
                                                           June 15, 1995

                                                    /s/ Donald E. Paulson
                                                 ---------------------------  
                                                          Secretary

 
                                    BY-LAWS
                                    -------

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

 
 
                                                                            Page
                                                                            ----
                                                                          
ARTICLE I. - STOCKHOLDERS......................................................1

Section 1.1.  Annual Meeting...................................................1

SECTION 1.2.  SPECIAL MEETINGS.................................................1

Section 1.3.  Notice of Meeting................................................1
Section 1.4.  Quorum...........................................................2
Section 1.5.  Voting and Proxies...............................................2
Section 1.6.  Action at Meeting................................................2
Section 1.7.  Action Without Meeting...........................................2
Section 1.8.  Voting of Shares of Certain Holders..............................2
Section 1.9.  Stockholder Lists................................................3

ARTICLE II. - BOARD OF DIRECTORS...............................................3

Section 2.1.  Powers...........................................................3
Section 2.2.  Number of Directors; Qualifications..............................4
Section 2.3.  Nomination of Directors..........................................4
Section 2.4   Election of Directors............................................4
Section 2.5.  Vacancies; Reduction of the Board................................4
Section 2.6.  Enlargement of the Board.........................................4
Section 2.7.  Tenure and Resignation...........................................5
Section 2.8.  Removal..........................................................5
Section 2.9.  Meetings.........................................................5
Section 2.10.  Notice of Meeting...............................................5
Section 2.11.  Agenda..........................................................5
Section 2.12.  Quorum..........................................................6
Section 2.13.  Action at Meeting...............................................6
Section 2.14.  Action Without Meeting..........................................6
Section 2.15.  Committees......................................................6

ARTICLE III. - OFFICERS........................................................6

Section 3.1.  Enumeration......................................................6
Section 3.2.  Election.........................................................7
Section 3.3.  Qualification....................................................7
Section 3.4.  Tenure...........................................................7
Section 3.5.  Removal..........................................................7
Section 3.6.  Resignation......................................................7
Section 3.7.  Vacancies........................................................7
Section 3.8.  Chairman of the Board............................................7
Section 3.9.  President........................................................7
Section 3.10.  Executive Vice-President; Vice-President(s).....................8
Section 3.11.  Treasurer and Assistant Treasurers..............................8
Section 3.12.  Secretary and Assistant Secretaries.............................8
Section 3.13.  Other Powers and Duties.........................................8
 

                                      -i-

 
 
                                                                            
ARTICLE IV. - CAPITAL STOCK....................................................9

Section 4.1.  Stock Certificates...............................................9
Section 4.2.  Transfer of Shares...............................................9
Section 4.3.  Record Holders...................................................9
Section 4.4.  Record Date......................................................9
Section 4.5.  Transfer Agent and Registrar for Shares of Corporation..........10
Section 4.6.  Loss of Certificates............................................10
Section 4.7.  Restrictions on Transfer........................................11
Section 4.8.  Multiple Classes of Stock.......................................11

ARTICLE V. - DIVIDENDS........................................................11

Section 5.1.  Declaration of Dividends........................................11
Section 5.2.  Reserves........................................................11

ARTICLE VI. - POWERS OF OFFICERS TO CONTRACT WITH THE CORPORATION.............12

ARTICLE VII. - INDEMNIFICATION................................................12

Section 7.1.  Definitions.....................................................12
Section 7.2.  Right to Indemnification in General.............................14
Section 7.3.  Proceedings Other Than Proceedings by or in the Right of the
                Corporation...................................................14
Section 7.4.  Proceedings by or in the Right of the Corporation...............14
Section 7.5.  Indemnification of a Party Who is Wholly or Partly Successful...15
Section 7.6.  Indemnification for Expenses of a Witness.......................15
Section 7.7.  Advancement of Expenses.........................................15
Section 7.8.  Notification and Defense of Claim...............................16
Section 7.9.  Method of Determination.........................................17
Section 7.10.  Presumptions and Effect of Certain Proceedings.................17
Section 7.11.  Non-Exclusivity................................................18
Section 7.12.  Insurance......................................................18
Section 7.13.  No Duplicative Payment.........................................18
Section 7.14.  Severability...................................................18

ARTICLE VIII. - MISCELLANEOUS PROVISIONS......................................19

Section 8.1.  Certificate of Incorporation....................................19
Section 8.2.  Fiscal Year.....................................................19
Section 8.3.  Corporate Seal..................................................19
Section 8.4.  Execution of Instruments........................................19
Section 8.5.  Voting of Securities............................................19
Section 8.6.  Evidence of Authority...........................................19
Section 8.7.  Corporate Records...............................................19
Section 8.8.  Charitable Contributions........................................20

ARTICLE IX. - AMENDMENTS......................................................20

Section 9.1.  Amendment by Stockholders.......................................20
Section 9.2.  Amendment by Board of Directors.................................20
 

                                     -ii-

 
                                    BY-LAWS

                                      OF

                                 ABIOMED, Inc.
                                 -------------

                           (A Delaware Corporation)


                                   ARTICLE I
                                   ---------

                                 Stockholders
                                 ------------

       Section 1.1.  Annual Meeting.  The annual meeting of the stockholders of
       -----------   --------------
the corporation shall be held on the first Wednesday of September in each year,
at such time and place within or without the State of Delaware as may be
designated in the notice of meeting. If the day fixed for the annual meeting
shall fall on a legal holiday, the meeting shall be held on the next succeeding
day not a legal holiday. If the annual meeting is omitted on the day herein
provided, a special meeting may be held in place thereof, and any business
transacted at such special meeting in lieu of annual meeting shall have the same
effect as if transacted or held at the annual meeting.

       Section 1.2.  Special Meetings.  Special meetings of the stockholders may
       -----------   ----------------
be called at any time by the chairman of the board of directors, the president
or by the board of directors. Special meetings of the stockholders shall be held
at such time, date and place within or outside of the State of Delaware as may
be designated in the notice of such meeting.

       Section 1.3.  Notice of Meeting.  A written notice stating the place,
       -----------   -----------------
date, and hour of each meeting of the stockholders, and, in the case of a
special meeting, the purposes for which the meeting is called, shall be given to
each stockholder entitled to vote at such meeting, and to each stockholder who,
under the Certificate of Incorporation or these By-laws, is entitled to such
notice, by delivering such notice to such person or leaving it at their
residence or usual place of business, or by mailing it, postage prepaid, and
addressed to such stockholder at his address as it appears upon the books of the
corporation, at least ten (10) days and not more than sixty (60) before the
meeting. Such notice shall be given by the secretary, an assistant secretary, or
any other officer or person designated either by the secretary or by the person
or persons calling the meeting.

       The requirement of notice to any stockholder may be waived by a written
waiver of notice, executed before or after the meeting by the stockholder or his
attorney thereunto duly authorized, and filed with the records of the meeting,
or if communication with such stockholder is unlawful, or by attendance at the
meeting without protesting prior thereto or at its commencement the lack of
notice. A waiver of notice of any regular or special meeting of the stockholders
need not specify the purposes of the meeting.

                                       1

 
       If a meeting is adjourned to another time or place, notice need not be
given of the adjourned meeting if the time and place are announced at the
meeting at which the adjournment is taken, except that if the adjournment is for
more than thirty days, or if after the adjournment a new record date is fixed
for the adjourned meeting, notice of the adjourned meeting shall be given to
each stockholder of record entitled to vote at the meeting.

       Section 1.4.  Quorum.  The holders of a majority in interest of all stock
       -----------   ------
issued, outstanding and entitled to vote at a meeting shall constitute a quorum.
Any meeting may be adjourned from time to time by a majority of the votes
properly cast upon the question, whether or not a quorum is present.

       Section 1.5.  Voting and Proxies.  Stockholders shall have one vote for
       -----------   ------------------
each share of stock entitled to vote owned by them of record according to the
books of the corporation, unless otherwise provided by law or by the Certificate
of Incorporation. Stockholders may vote either in person or by written proxy,
but no proxy shall be voted or acted upon after three years from its date,
unless the proxy provides for a longer period. Proxies shall be filed with the
secretary of the meeting, or of any adjournment thereof. Except as otherwise
limited therein, proxies shall entitle the persons authorized thereby to vote at
any adjournment of such meeting. A proxy purporting to be executed by or on
behalf of a stockholder shall be deemed valid unless challenged at or prior to
its exercise and the burden of proving invalidity shall rest on the challenger.
A proxy with respect to stock held in the name of two or more persons shall be
valid if executed by one of them unless at or prior to exercise of the proxy the
corporation receives a specific written notice to the contrary from any one of
them.

       Section 1.6.  Action at Meeting.  When a quorum is present at any
       -----------   -----------------
meeting, a plurality of the votes properly cast for election to any office shall
elect to such office, and a majority of the votes properly cast upon any
question other than election to an office shall decide such question, except
where a larger vote is required by law, the Certificate of Incorporation or
these by- laws. No ballot shall be required for any election unless requested by
a stockholder present or represented at the meeting and entitled to vote in the
election.

       Section 1.7.  Action Without Meeting.  Any action required or permitted
       -----------   ----------------------
to be taken at any meeting of the stockholders may be taken without a meeting if
the minimum number of stockholders necessary to authorize or take such action
and entitled to vote on the matter consent to the action in writing and the
consents are filed with the records of the meetings of stockholders. Such
consent shall be treated for all purposes as a vote at a meeting.

       Section 1.8.  Voting of Shares of Certain Holders.  Shares of stock of
       -----------   -----------------------------------
the corporation standing in the name of another corporation, domestic or
foreign, may be voted by such officer, agent, or proxy as the by-laws of such
corporation may prescribe, or, in the absence of such provision, as the board of
directors of such corporation may determine.

                                       2

 
       Shares of stock of the corporation standing in the name of a deceased
person, a minor ward or an incompetent person, may be voted by his
administrator, executor, court-appointed guardian or conservator without a
transfer of such shares into the name of such administrator, executor, court
appointed guardian or conservator. Shares of capital stock of the corporation
standing in the name of a trustee may be voted by him.

       Shares of stock of the corporation standing in the name of a receiver may
be voted by such receiver, and shares held by or under the control of a receiver
may be voted by such receiver without the transfer thereof into his name if
authority so to do be contained in an appropriate order of the court by which
such receiver was appointed.

       A stockholder whose shares are pledged shall be entitled to vote such
shares until the shares have been transferred into the name of the pledgee, and
thereafter the pledgee shall be entitled to vote the shares so transferred.

       Shares of its own stock belonging to this corporation shall not be voted,
directly or indirectly, at any meeting and shall not be counted in determining
the total number of outstanding shares at any given time, but shares of its own
stock held by the corporation in a fiduciary capacity may be voted and shall be
counted in determining the total number of outstanding shares.

       Section 1.9.  Stockholder Lists.  The secretary (or the corporation's
       -----------   -----------------
transfer agent or other person authorized by these By-laws or by law) shall
prepare and make, at least ten 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,
during ordinary business hours, for a period of at least ten days prior 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.

                                  ARTICLE II.
                                  -----------

                              Board of Directors
                              ------------------

       Section 2.1.  Powers.  Except as reserved to the stockholders by law, by
       -----------   ------
the Certificate of Incorporation or by these By-laws, the business of the
corporation shall be managed under the direction of the board of directors, who
shall have and may exercise all of the powers of the corporation. In particular,
and without limiting the foregoing, the board of directors shall have the power
to issue or reserve for issuance from time to time the whole or any part of the
capital stock of the corporation which may be authorized from time to time to
such person, for such 

                                       3


 
consideration and upon such terms and conditions as they shall determine,
including the granting of options, warrants or conversion or other rights to
stock.

       Section 2.2.  Number of Directors; Qualifications.  The board of
       -----------   -----------------------------------
directors shall consist of such number of directors, not less than 3 nor more
than 11, as shall be fixed initially by the incorporator(s) and thereafter by
the board of directors. No director need be a stockholder.

       Section 2.3.  Nomination of Directors.  
       -----------   -----------------------

       (a)   Nominations for the election of directors may be made by the board
of directors or by any stockholder entitled to vote for the election of
directors. Nominations by stockholders shall be made by notice in writing,
delivered or mailed by first class United States mail, postage prepaid, to the
secretary of the corporation not less than 45 days nor more than 60 days prior
to any meeting of the stockholders called for the election of directors.

       (b)   Each notice under subsection (a) shall set forth (i) the name, age,
business address and, if known, residence address of each nominee proposed in
such notice, (ii) the principal occupation or employment of each such nominee,
and (iii) the number of shares of stock of the corporation which are
beneficially owned by each such nominee.

       (c)   The chairman of the meeting of stockholders may, if the facts
warrant, determine and declare to the meeting that a nomination was not made in
accordance with the foregoing procedure, and if he should so determine, he shall
so declare to the meeting and the defective nomination shall be disregarded.

       Section 2.4.  Election of Directors.  The initial board of directors
       -----------   ---------------------
shall be elected by the incorporator(s) at the first meeting thereof and
thereafter by the stockholders at their annual meeting or at any special meeting
the notice of which specifies the election of directors as an item of business
for such meeting.

       Section 2.5.  Vacancies; Reduction of the Board.  Any vacancy in the
       -----------   ---------------------------------
board of directors, however occurring, including a vacancy resulting from the
enlargement of the board of directors, may be filled by the stockholders or by
the directors then in office or by a sole remaining director. In lieu of filling
any such vacancy the stockholders or board of directors may reduce the number of
directors, but not to a number less than 3. When one or more directors shall
resign from the board of directors, effective at a future date, a majority of
the directors then in office, including those who have so resigned, shall have
power to fill such vacancy or vacancies, the vote thereon to take effect when
such resignation or resignations shall become effective.

       Section 2.6.  Enlargement of the Board.  The board of directors may be
       -----------   ------------------------
enlarged by the stockholders at any meeting or by vote of a majority of the
directors then in office.

                                       4

 
       Section 2.7.  Tenure and Resignation.  Except as otherwise provided by
       -----------   ----------------------
law, by the Certificate of Incorporation or by these By-laws, directors shall
hold office until the next annual meeting of stockholders and thereafter until
their successors are chosen and qualified. Any director may resign by delivering
or mailing postage prepaid a written resignation to the corporation at its
principal office or to the chairman of the board of directors, president,
secretary or assistant secretary, if any. Such resignation shall be effective
upon receipt unless it is specified to be effective at some other time or upon
the happening of some other event.

       Section 2.8.  Removal.  A director, whether elected by the stockholders
       -----------   -------
or directors, may be removed from office only for cause, either at any annual or
any special meeting of stockholders, by vote of a majority of the stockholders
entitled to vote in the election of such directors, or to the extent permitted
by law, by a vote of a majority of the directors then in office; provided,
however, that a director may be removed for cause only after reasonable notice
and opportunity to be heard before the body proposing to remove him.

       Section 2.9.  Meetings.  Regular meetings of the board of directors may
       -----------   --------
be held without call or notice at such times and such places within or without
the State of Delaware as the Board may, from time to time, determine, provided
that notice of the first regular meeting following any such determination shall
be given to directors absent from such determination. A regular meeting of the
board of directors shall be held without notice immediately after, and at the
same place as, the annual meeting of the stockholders or the special meeting of
the stockholders held in place of such annual meeting, unless a quorum of the
directors is not then present. Special meetings of the board of directors may be
held at any time and at any place designated in the call of the meeting when
called by the president, treasurer, or one or more directors. Members of the
board of directors or any committee elected thereby may participate in a meeting
of such board or committee by means of a conference telephone or similar
communications equipment by means of which all persons participating in the
meeting can hear each other at the same time, and participation by such means
shall constitute presence in person at the meeting.

       Section 2.10. Notice of Meeting.  It shall be sufficient notice to a
       ------------  -----------------
director to send notice by mail at least seventy-two (72) hours before the
meeting addressed to such person at his usual or last known business or
residence address or to give notice to such person in person or by telephone at
least twenty-four (24) hours before the meeting. Notice shall be given by the
secretary, assistant secretary, if any, or by the officer or directors calling
the meeting. The requirement of notice to any director may be waived by a
written waiver of notice, executed by such person before or after the meeting or
meetings, and filed with the records of the meeting, or by attendance at the
meeting without protesting prior thereto or at its commencement the lack of
notice. A notice or waiver of notice of a directors' meeting need not specify
the purposes of the meeting.

       Section 2.11. Agenda.  Any lawful business may be transacted at a
       ------------  ------
meeting of the board of directors, notwithstanding the fact that the nature of
the business may not have been specified in the notice or waiver of notice of
the meeting.

                                       5

 
       Section 2.12.  Quorum.  At any meeting of the board of directors, a
       ------------   ------
majority of the directors then in office shall constitute a quorum for the
transaction of business. Any meeting may be adjourned by a majority of the votes
cast upon the question, whether or not a quorum is present, and the meeting may
be held as adjourned without further notice.

       Section 2.13.  Action at Meeting.  Any motion adopted by 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, except where a different vote is
required by law, by the Certificate of Incorporation or by these By-laws. The
assent in writing of any director to any vote or action of the directors taken
at any meeting, whether or not a quorum was present and whether or not the
director had or waived notice of the meeting, shall have the same effect as if
the director so assenting was present at such meeting and voted in favor of such
vote or action.

       Section 2.14.  Action Without Meeting.  Any action by the directors may
       ------------   ----------------------
be taken without a meeting if all of the directors consent to the action in
writing and the consents are filed with the records of the directors' meetings.
Such consent shall be treated for all purposes as a vote of the directors at a
meeting.

       Section 2.15.  Committees.  The board of directors may, by the
       ------------   ----------
affirmative vote of a majority of the directors then in office, appoint an
executive committee or other committees consisting of one or more directors and
may by vote delegate to any such committee some or all of their powers except
those which by law, the Certificate of Incorporation or these By-laws they may
not delegate. Unless the board of directors shall otherwise provide, any such
committee may make rules for the conduct of its business, but unless otherwise
provided by the board of directors or such rules, its meetings shall be called,
notice given or waived, its business conducted or its action taken as nearly as
may be in the same manner as is provided in these By-laws with respect to
meetings or for the conduct of business or the taking of actions by the board of
directors. The board of directors shall have power at any time to fill vacancies
in, change the membership of, or discharge any such committee at any time. The
board of directors shall have power to rescind any action of any committee, but
no such rescission shall have retroactive effect.

                                 ARTICLE III.
                                 ------------

                                   Officers
                                   --------

       Section 3.1.  Enumeration.  The officers shall consist of a chairman of
       -----------   -----------
the board of directors, president, executive vice-president, a treasurer, a
secretary and such other officers and agents (including one or more additional
vice-presidents, assistant treasurers and assistant secretaries), as the board
of directors may, in their discretion, determine.

                                       6

 
       Section 3.2.  Election.  The chairman of the board of directors,
       -----------   --------
president, executive vice-president, treasurer and secretary shall be elected
annually by the directors at their first meeting following the annual meeting of
the stockholders or any special meeting held in lieu of the annual meeting.
Other officers may be chosen by the directors at such meeting or at any other
meeting.

       Section 3.3.  Qualification.  An officer may, but need not, be a director
       -----------   -------------
or stockholder. Any two or more offices may be held by the same person. Any
officer may be required by the directors to give bond for the faithful
performance of his duties to the corporation in such amount and with such
sureties as the directors may determine. The premiums for such bonds may be paid
by the corporation.

       Section 3.4.  Tenure.  Except as otherwise provided by the Certificate of
       -----------   ------
Incorporation or these By-laws, the term of office of each officer shall be for
one year or until his successor is elected and qualified or until his earlier
resignation or removal.

       Section 3.5.  Removal.  Any officer may be removed from office, with or
       -----------   -------
without cause, by the affirmative vote of a majority of the directors then in
office; provided, however, that an officer may be removed for cause only after
reasonable notice and opportunity to be heard by the board of directors prior to
action thereon.

       Section 3.6.  Resignation.  Any officer may resign by delivering or
       -----------   -----------
mailing postage prepaid a written resignation to the corporation at its
principal office or to the chairman of the board of directors, president,
secretary, or assistant secretary, if any, and such resignation shall be
effective upon receipt unless it is specified to be effective at some other time
or upon the happening of some event.

       Section 3.7.  Vacancies.  A vacancy in any office arising from any cause
       -----------   ---------
may be filled for the unexpired portion of the term by the board of directors.

       Section 3.8.  Chairman of the Board.  The chairman of the board of
       -----------   ---------------------
directors shall be the chief executive officer of the corporation and shall have
such duties and powers as are commonly incident to such office, and shall have
such other duties and powers as the board of directors may from time to time
determine. He shall preside at all meetings of the board of directors.

       Section 3.9.  President.  The president shall be the chief operating
       -----------   ---------
officer of the corporation. Except as otherwise voted by the board of directors,
the president shall preside at all meetings of the stockholders, and at meetings
of the board of directors in the absence of the chairman of the board. The
president shall have such duties and powers as are commonly incident to the
office of chief operating officer and such duties and powers as the board of
directors shall from time to time designate.

                                       7

 
       Section 3.10. Executive Vice-President; Vice-President(s).  In the
       ------------  -------------------------------------------
absence of either the chairman of the board of directors or the president, the
executive vice-president shall have and may exercise all of the powers of the
officer who is absent. The executive vice-president and any additional vice-
presidents, shall have such other powers and perform such duties as the board of
directors may from time to time determine.

       Section 3.11. Treasurer and Assistant Treasurers.  The treasurer, subject
       ------------  ----------------------------------
to the direction and under the supervision and control of the board of
directors, shall have general charge of the financial affairs of the
corporation. The treasurer shall have custody of all funds, securities and
valuable papers of the corporation, except as the board of directors may
otherwise provide. The treasurer shall keep or cause to be kept full and
accurate records of account which shall be the property of the corporation, and
which shall be always open to the inspection of each elected officer and
director of the corporation. The treasurer shall deposit or cause to be
deposited all funds of the corporation in such depository or depositories as may
be authorized by the board of directors. The treasurer shall have the power to
endorse for deposit or collection all notes, checks, drafts, and other
negotiable instruments payable to the corporation. The treasurer shall perform
such other duties as are incidental to the office, and such other duties as may
be assigned by the board of directors.

       Assistant treasurers, if any, shall have such powers and perform such
duties as the board of directors may from time to time determine.

       Section 3.12. Secretary and Assistant Secretaries.  The secretary shall
       ------------  -----------------------------------
record, or cause to be recorded, all proceedings of the meetings of the
stockholders and directors (including committees thereof) in the book of records
of this corporation. The record books shall be open at reasonable times to the
inspection of any stockholder, director, or officer. The secretary shall notify
the stockholders and directors, when required by law or by these By-laws, of
their respective meetings, and shall perform such other duties as the directors
and stockholders may from time to time prescribe. The secretary shall have the
custody and charge of the corporate seal, and shall affix the seal of the
corporation to all instruments requiring such seal, and shall certify under the
corporate seal the proceedings of the directors and of the stockholders, when
required. In the absence of the secretary at any such meeting, a temporary
secretary shall be chosen who shall record the proceedings of the meeting in the
aforesaid books.

       Assistant secretaries, if any, shall have such powers and perform such
duties as the board of directors may from time to time designate.

       Section 3.13. Other Powers and Duties.  Subject to these By-laws and to
       ------------  -----------------------
such limitations as the board of directors may from time to time prescribe, the
officers of the corporation shall each have such powers and duties as generally
pertain to their respective offices, as well as such powers and duties as from
time to time may be conferred by the board of directors.

                                       8

 
                                  ARTICLE IV.
                                  -----------

                                 Capital Stock
                                 -------------

       Section 4.1.  Stock Certificates.  Each stockholder shall be entitled to
       -----------   ------------------
a certificate representing the number of shares of the capital stock of the
corporation owned by such person in such form as shall, in conformity to law, be
prescribed from time to time by the board of directors. Each certificate shall
be signed by the chairman of the board of directors, the president or any vice-
president and by the secretary, assistant secretary or treasurer or assistant
treasurer, or such other officers designated by the board of directors from time
to time as permitted by law, shall bear the seal of the corporation, and shall
express on its face its number, date of issue, class, the number of shares for
which, and the name of the person to whom, it is issued. The corporate seal and
any or all of the signatures of corporation officers may be facsimile if the
stock certificate is manually counter-signed by an authorized person on behalf
of a transfer agent or registrar other than the corporation or its employee.

       If an officer, transfer agent or registrar who has signed, or whose
facsimile signature has been placed on, a certificate shall have ceased to be
such before the 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
time of its issue.

       Section 4.2.  Transfer of Shares.  Title to a certificate of stock and to
       -----------   ------------------
the shares represented thereby shall be transferred only on the books of the
corporation by delivery to the corporation or its transfer agent of the
certificate properly endorsed, or by delivery of the certificate accompanied by
a written assignment of the same, or a properly executed written power of
attorney to sell, assign or transfer the same or the shares represented thereby.
Upon surrender of a certificate for the shares being transferred, a new
certificate or certificates shall be issued according to the interests of the
parties.

       Section 4.3.  Record Holders.  Except as otherwise may be required by
       -----------   --------------
law, by the Certificate of Incorporation or by these By-laws, the corporation
shall be entitled to treat the record holder of stock as shown on its books as
the owner of such stock for all purposes, including the payment of dividends and
the right to vote with respect thereto, regardless of any transfer, pledge or
other disposition of such stock, until the shares have been transferred on the
books of the corporation in accordance with the requirements of these By-laws.

       It shall be the duty of each stockholder to notify the corporation of his
post office address.

       Section 4.4.  Record Date.  In order that the corporation may determine
       -----------   -----------
the stockholders entitled to receive notice of or to vote at any meeting of
stockholders or any adjournments thereof, or to express consent to corporate
action in writing without a meeting, or entitled to receive payment of any
dividend or other distribution or allotment of any rights, or entitled to
exercise any rights in respect of any change, conversion or exchange of stock or
for the purpose

                                       9


 
of any other lawful action, the board of directors may fix, in advance, a record
date, which shall not be more than sixty days prior to any other action. In such
case only stockholders of record on such record date shall be so entitled
notwithstanding any transfer of stock on the books of the corporation after the
record date.

       If no record date is fixed: (i) the record date for determining
stockholders entitled to receive 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; (ii) the record
date for determining stockholders entitled to express consent to corporate
action in writing without a meeting, when no prior action by the board of
directors is necessary, shall be the day on which the first written consent is
expressed; and (iii) the record date for determining stockholders for any other
purpose shall be at the close of business on the day on which the board of
directors adopts the resolution relating thereto.

       Section 4.5.  Transfer Agent and Registrar for Shares of Corporation.  
       -----------   ------------------------------------------------------
The board of directors may appoint a transfer agent and a registrar of the
certificates of stock of the corporation. Any transfer agent so appointed shall
maintain, among other records, a stockholders' ledger, setting forth the names
and addresses of the holders of all issued shares of stock of the corporation,
the number of shares held by each, the certificate numbers representing such
shares, and the date of issue of the certificates representing such shares. Any
registrar so appointed shall maintain, among other records, a share register,
setting forth the total number of shares of each class of shares which the
corporation is authorized to issue and the total number of shares actually
issued. The stockholders' ledger and the share register are hereby identified as
the stock transfer books of the corporation; but as between the stockholders'
ledger and the share register, the names and addresses of stockholders, as they
appear on the stockholders' ledger maintained by the transfer agent shall be the
official list of stockholders of record of the corporation. The name and address
of each stockholder of record, as they appear upon the stockholders' ledger,
shall be conclusive evidence of who are the stockholders entitled to receive
notice of the meetings of stockholders, to vote at such meetings, to examine a
complete list of the stockholders entitled to vote at meetings, and to own,
enjoy and exercise any other property or rights deriving from such shares
against the corporation. Stockholders, but not the corporation, its directors,
officers, agents or attorneys, shall be responsible for notifying the transfer
agent, in writing, of any changes in their names or addresses from time to time,
and failure to do so will relieve the corporation, its other stockholders,
directors, officers, agents and attorneys, and its transfer agent and registrar,
of liability for failure to direct notices or other documents, or pay over or
transfer dividends or other property or rights, to a name or address other than
the name and address appearing in the stockholders' ledger maintained by the
transfer agent.

       Section 4.6.  Loss of Certificates.  In case of the loss, destruction or
       -----------   --------------------
mutilation of a certificate of stock, a replacement certificate may be issued in
place thereof upon such terms as the board of directors may prescribe,
including, in the discretion of the board of directors, a requirement of bond
and indemnity to the corporation.

                                      10


 
       Section 4.7.  Restrictions on Transfer.  Every certificate for shares of
       -----------   ------------------------
stock which are subject to any restriction on transfer, whether pursuant to the
Certificate of Incorporation, the By-laws or any agreement to which the
corporation is a party, shall have the fact of the restriction noted
conspicuously on the certificate and shall also set forth on the face or back
either the full text of the restriction or a statement that the corporation will
furnish a copy to the holder of such certificate upon written request and
without charge.

       Section 4.8.  Multiple Classes of Stock.  The amount and classes of the
       -----------   -------------------------
capital stock and the par value, if any, of the shares, shall be as fixed in the
Certificate of Incorporation. At all times when there are two or more classes of
stock, the several classes of stock shall conform to the description and the
terms and have the respective preferences, voting powers, restrictions and
qualifications set forth in the Certificate of Incorporation and these By-laws.
Every certificate issued when the corporation is authorized to issue more than
one class or series of stock shall set forth on its face or back either (i) the
full text of the preferences, voting powers, qualifications and special and
relative rights of the shares of each class and series authorized to be issued,
or (ii) a statement of the existence of such preferences, powers, qualifications
and rights, and a statement that the corporation will furnish a copy thereof to
the holder of such certificate upon written request and without charge.

                                  ARTICLE V.
                                  ----------

                                   Dividends
                                   ---------

       Section 5.1.  Declaration of Dividends.  Except as otherwise required by
       -----------   ------------------------
law or by the Certificate of Incorporation, the board of directors may, in its
discretion, declare what, if any, dividends shall be paid from the surplus or
from the net profits of the corporation upon the stock of the corporation;
provided, however, that no dividend shall be declared or paid the payment of
which would diminish the amount of the paid-in capital of the corporation.
Dividends may be paid in cash, in property, in shares of the corporation's
stock, or in any combination thereof. Dividends shall be payable upon such dates
as the board of directors may designate.

       Section 5.2.  Reserves.  Before the payment of any dividend and before
       -----------   --------
making any distribution of profits, the board of directors, from time to time
and in its absolute discretion, shall have power to set aside out of the surplus
or net profits of the corporation such sum or sums as the board of directors
deems proper and sufficient as a reserve fund to meet contingencies or for such
other purpose as the board of directors shall deem to be in the best interests
of the corporation, and the board of directors may modify or abolish any such
reserve.

                                      11

 
                                  ARTICLE VI.
                                  -----------

                        Powers of Officers to Contract
                        ------------------------------

                             With the Corporation
                             --------------------

       Any and all of the directors and officers of the corporation,
notwithstanding their official relations to it, may enter into and perform any
contract or agreement of any nature between the corporation and themselves, or
any and all of the individuals from time to time constituting the board of
directors of the corporation, or any firm or corporation in which any such
director may be interested, directly or indirectly, whether such individual,
firm or corporation thus contracting with the corporation shall thereby derive
personal or corporate profits or benefits or otherwise; provided, that (i) the
material facts of such interest are disclosed or are known to the board of
directors or committee thereof which authorizes such contract or agreement; (ii)
if the material facts as to such person's relationship or interest are disclosed
or are known to the stockholders entitled to vote thereon, and the contract is
specifically approved in good faith by a vote or the stockholders; or (iii) the
contract or agreement is fair as to the corporation as of the time it is
authorized, approved or ratified by the board of directors, a committee thereof,
or the stockholders. Any director of the corporation who is interested in any
transaction as aforesaid may nevertheless be counted in determining the
existence of a quorum at any meeting of the board of directors which shall
authorize or ratify any such transaction. This Article shall not be construed to
invalidate any contract or other transaction which would otherwise be valid
under the common or statutory law applicable thereto.

                                  ARTICLE VII
                                  -----------

                                Indemnification
                                ---------------

       Section 7.1.  Definitions.  For purposes of this Article VII the
       -----------   -----------
following terms shall have the meanings indicated:

       (a)   "Code of Conduct" means the corporation's Code of Conduct for
Directors, Officers and Employees as in effect from time to time.

       (b)   "Corporate Status" describes the status of a person who is or was a
director, officer, employee, agent, trustee or fiduciary of the Corporation or
of any other corporation, partnership, joint venture, trust, employee benefit
plan or other Enterprise which such person is or was serving at the express
written request of the corporation.

       (c)   "Court" means the Court of Chancery of the State of Delaware, the
court in which the Proceeding in respect of which indemnification is sought by a
Covered Person shall have been brought or is pending, or another court having
subject jurisdiction and personal jurisdiction over the parties.

                                      12 

 
       (d)   "Covered Person" means a person who is a present or former director
or officer of the corporation and shall include such person's legal
representatives, heirs, executors and administrators.

       (e)   "Disinterested Director" means a director of the corporation who is
not and was not a party to the Proceeding in respect of which indemnification is
sought by a Covered Person.

       (f)   "Enterprise" shall mean the corporation and any other corporation,
partnership, joint venture, trust, employee benefit plan or other enterprise of
which a Covered Person is or was serving at the express written request of the
corporation as a director, officer, employee, agent, trustee or fiduciary.

       (g)   "Expenses" shall include, without limitation, all reasonable
attorneys' fees, retainers, court costs, transcript costs, fees of experts,
witness fees, travel expenses, duplicating costs, printing and binding costs,
telephone charges, postage, delivery service fees, and all other disbursements
or expenses of the types customarily incurred in connection with prosecuting,
defending, preparing to prosecute or defend, investigating or being or preparing
to be a witness in a Proceeding.

       (h)   "Good Faith" shall mean a Covered Person having acted in good faith
and in a manner such Covered Person reasonably believed to be in or not opposed
to the best interests of the corporation or, in the case of an Enterprise which
is an employee benefit plan, the best interests of the participants or
beneficiaries of said plan, as the case may be, and, with respect to any
Proceeding which is criminal in nature, having had no reasonable cause to
believe such Covered Person's conduct was unlawful.

       (i)   "Independent Counsel" means a law firm, or a member of a law firm,
that is experienced in matters of corporation law and may include law firms or
members thereof that are regularly retained by the corporation but not any other
party to the Proceeding giving rise to a claim for indemnification hereunder.
Notwithstanding the foregoing, the term "Independent Counsel" shall not include
any person who, under the standards of professional conduct then prevailing and
applicable to such counsel, would have a conflict of interest in representing
either the corporation or Covered Person in an action to determine Covered
Person's rights under this Article.

       (j)   "Proceeding" includes any action, suit, arbitration, alternate
dispute resolution mechanism, investigation (including any internal corporate
investigation), administrative hearing or any other actual, threatened or
completed proceeding whether civil, criminal, administrative or investigative,
other than one initiated by the Covered Person. For purposes of the foregoing
sentence, a "Proceeding" shall not be deemed to have been initiated by the
Covered Person where such Covered Person seeks to enforce such Covered Person's
rights under this Article.

                                      13

 
       Section 7.2.  Right to Indemnification in General.  
       -----------   -----------------------------------

       (a)   Covered Persons. In connection with any Proceeding, the corporation
             ---------------
shall indemnify, and advance Expenses, to each Covered Person as provided in
this Article and to the fullest extent permitted by applicable law in effect on
the date hereof and to such greater extent as applicable law may hereafter from
time to time permit. The indemnification provisions in this Article shall be
deemed to be a contract between the corporation and each Covered Person who
serves in any such Corporate Status at any time while these provisions as well
as the relevant provisions of the Delaware General Corporation Law are in effect
and any repeal or modification thereof shall not affect any right or obligation
then existing with respect to any state of facts then or previously existing or
any Proceeding previously or thereafter brought or threatened based in whole or
in part upon any such state of facts. Such a "contract right" may not be
modified retroactively without the consent of such Covered Person.

       (b)   Employees and Agents. The corporation may, to the extent authorized
             --------------------
from time to time by the board of directors, grant indemnification and the
advancement of Expenses to any employee or agent of the corporation to the
fullest extent of the provisions of this Article with respect to the
indemnification and advancement of Expenses of Covered Person.

       Section 7.3.  Proceedings Other Than Proceedings by or in the Right of 
       -----------   --------------------------------------------------------
the Corporation.  Each Covered Person shall be entitled to the rights of
- ---------------
indemnification provided in this Section 7.3 if, by reason of such Covered
Person's Corporate Status, such Covered Person is, or is threatened to be made,
a party to or is otherwise involved in any Proceeding, other than a Proceeding
by or in the right of the corporation. Each Covered Person shall be indemnified
against Expenses, judgments, penalties, fines and amounts paid in settlements,
actually and reasonably incurred by such Covered Person or on such Covered
Person's behalf in connection with such Proceeding or any claim, issue or matter
therein, if such Covered Person did not violate the corporation's Code of
Conduct and acted in Good Faith. Notwithstanding the foregoing, if such Covered
Person shall have been found to have violated the corporation's Code of Conduct
then in effect, the corporation may, to the extent authorized by the board of
directors, indemnify such Covered Person against Expenses, judgments, penalties,
fines and amounts paid in settlement, actually and reasonably incurred by such
Covered Person or on such Covered Person's behalf.

       Section 7.4.  Proceedings by or in the Right of the Corporation.  
       -----------   -------------------------------------------------

       (a)   Each Covered Person shall be entitled to the rights of
indemnification provided in this Section 7.4 if, by reason of such Covered
Person's Corporate Status, such Covered Person is, or is threatened to be made,
a party to or is otherwise involved in any Proceeding brought by or in the right
of the corporation to procure a judgment in its favor. Such Covered Person shall
be indemnified against Expenses, judgments, penalties, and amounts paid in
settlement, actually and reasonably incurred by such Covered Person or on such
Covered Person's behalf in connection with such Proceeding if such Covered
Person acted in Good

                                      14

 
Faith. Notwithstanding the foregoing, no such indemnification shall be made in
respect of any claim, issue or matter in such Proceeding as to which such
Covered Person shall have been adjudged to be liable to the corporation if
applicable law prohibits such indemnification; provided, however, that, if
applicable law so permits, indemnification shall nevertheless be made by the
corporation in such event if and only to the extent that the Court which is
considering the matter shall determine.

       (b)   Notwithstanding any provision to the contrary in this Section, if
the board of directors, Independent Counsel or the stockholders, as the case may
be, making the determination with respect to indemnification as provided under
Section 7.9 hereof, or the Court considering the matter determines that the act
or omission which forms the basis for the claim which is the subject of the
Proceeding violated the corporation's Code of Conduct then in effect, then,
notwithstanding that fact, the corporation may, to the extent authorized by the
board of directors, indemnify such Covered Person against all Expenses,
judgments, penalties and amounts paid in settlement, actually and reasonably
incurred by such Covered Person or on such Covered Person's behalf in connection
with such proceeding if such Covered Person acted in Good Faith.

       Section 7.5.  Indemnification of a Party Who is Wholly or Partly 
       -----------   --------------------------------------------------
Successful.  Notwithstanding any other provision of this Article, to the extent
- ----------
that a Covered Person is, by reason of such Covered Person's Corporate Status, a
party to or is otherwise involved in and is successful, on the merits or
otherwise, in any Proceeding, such Covered Person shall be indemnified to the
maximum extent permitted by law, against all Expenses, judgments, penalties,
fines, and amounts paid in settlement, actually and reasonably incurred by such
Covered Person or on such Covered Person's behalf in connection therewith. If
such Covered Person is not wholly successful in such Proceeding but is
successful, on the merits or otherwise, as to one or more but less than all
claims, issues or matters in such Proceeding, the corporation shall indemnify
such Covered Person to the maximum extent permitted by law, against all
Expenses, judgments, penalties, fines, and amounts paid in settlement, actually
and reasonably incurred by such Covered Person or on such Covered Person's
behalf in connection with each successfully resolved claim, issue or matter. For
purposes of this Section 7.5 and without limitation, the termination of any
claim, issue or matter in such a Proceeding by dismissal, with or without
prejudice, shall be deemed to be a successful result as to such claim, issue or
matter.

       Section 7.6.  Indemnification for Expenses of a Witness.  Notwithstanding
       -----------   -----------------------------------------
any other provision of this Article, to the extent that a Covered Person is, by
reason of such Covered Person's Corporate Status, a witness in any Proceeding,
such Covered Person shall be indemnified against all Expenses actually and
reasonably incurred by such Covered Person or on such Covered Person's behalf in
connection therewith.

       Section 7.7.  Advancement of Expenses.  Notwithstanding any provision to
       -----------   -----------------------
the contrary in this Article, the corporation (acting through the chairman of
the board, president, executive vice president or any vice president of the
corporation) shall advance all reasonable Expenses which, by reason of a Covered
Person's Corporate Status, were incurred by or on behalf of such

                                      15

 
Covered Person in connection with any Proceeding, within twenty (20) days after
the receipt by the corporation of a statement or statements from such Covered
Person requesting such advance or advances, whether prior to or after final
disposition of such Proceeding. Such statement or statements shall reasonably
evidence the Expenses incurred by the Covered Person and shall include or be
preceded or accompanied by an undertaking by or on behalf of the Covered Person
to repay any Expenses if it shall ultimately be determined that such Covered
Person is not entitled to be indemnified against such Expenses. Any advance and
undertakings to repay pursuant to this Section 7.7 shall be unsecured and
interest free. Advancement of Expenses pursuant to this Section 7.7 shall not
require approval of the board of directors or the stockholders of the
corporation, or of any other person or body. The Secretary of the corporation
shall promptly advise the Board in writing of the request for advancement of
Expenses, of the amount and other details of the advance and of the undertaking
to make repayment pursuant to this Section 7.7.

       Section 7.8.  Notification and Defense of Claim.  Promptly after receipt
       -----------   ---------------------------------
by an Covered Person of notice of the commencement of any Proceeding, such
Covered Person shall, if a claim is to be made against the corporation under
this Article, notify the corporation of the commencement of the Proceeding. The
omission so to notify the corporation will not relieve it from any liability
which it may have to such Covered Person otherwise than under this Article. With
respect to any such Proceedings to which such Covered Person notifies the
corporation:

       (a)   The corporation will be entitled to participate in the defense at
its own expense.

       (b)   Except as otherwise provided below, the corporation jointly with
any other indemnifying party similarly notified will be entitled to assume the
defense with counsel reasonably satisfactory to the Covered Person. After notice
from the corporation to the Covered Person of its election to assume the defense
of a suit, the corporation will not be liable to the Covered Person under this
Article for any legal or other expenses subsequently incurred by the Covered
Person in connection with the defense of the Proceeding other than reasonable
costs of investigation or as otherwise provided below. The Covered Person shall
have the right to employ his own counsel in such Proceeding but the fees and
expenses of such counsel incurred after notice from the corporation of its
assumption of the defense shall be at the expense of the Covered Person unless
(i) the employment of counsel by the Covered Person has been authorized by the
corporation, (ii) the Covered Person shall have concluded reasonably that there
may be a conflict of interest between the corporation and the Covered Person in
the conduct of the defense of such action and such conclusion is confirmed in
writing by the corporation's outside counsel regularly employed by it in
connection with corporate matters, or (iii) the corporation shall not in fact
have employed counsel to assume the defense of such Proceeding, in each of which
cases the fees and expenses of counsel shall be at the expense of the
corporation. The corporation shall not be entitled to assume the defense of any
Proceeding brought by or in the right of the corporation or as to which the
Covered Person shall have made the conclusion provided for in (ii) above and
such conclusion shall have been so confirmed by the corporation's said outside
counsel.

                                      16

 
       (c)   Notwithstanding any provision of this Article to the contrary, the
corporation shall not be liable to indemnify the Covered Person under this
Article for any amounts paid in settlement of any Proceeding or claim effected
without its written consent. The corporation shall not settle any Proceeding or
claim in any manner which would impose any penalty, limitation or
disqualification of the Covered Person for any purpose without such Covered
Person's written consent. Neither the corporation nor the Covered Person will
unreasonably withhold their consent to any proposed settlement.

       (d)   If it is determined that the Covered Person is entitled to
indemnification not covered by defense of the claim afforded under subparagraph
(b) above, payment to the Covered Person of the additional amounts to be
indemnified shall be made within ten (10) days after determination.

       Section 7.9.  Method of Determination.  A determination (if required by
       -----------   -----------------------
applicable law in the specific case) with respect to a Covered Person's
entitlement to indemnification shall be made (a) by the board of directors by a
majority vote of a quorum consisting of Disinterested Directors, or (b) in the
event that a quorum of the Board consisting of Disinterested Directors is not
obtainable or, even if obtainable, such quorum of Disinterested Directors so
directs, by Independent Counsel in a written opinion to the board of directors,
a copy of which shall be delivered to the Covered Person seeking
indemnification, or (c) by the holders of a majority of the votes of the
outstanding stock at the time entitled to vote on matters other than the
election or removal of directors, voting as a single class, including the stock
of the Covered Person seeking indemnification.

       Section 7.10.  Presumptions and Effect of Certain Proceedings. 
       ------------   ----------------------------------------------

       (a)   Burden of Proof. In making a determination with respect to
             ---------------
entitlement to indemnification hereunder, the person or persons or entity making
such determination shall presume that the Covered Person is entitled to
indemnification under this Article if such Covered Person has submitted a
request for indemnification including such documentation and information as is
reasonably available to such Covered Person and is reasonably necessary to
determine whether and to what extent such Covered Person is entitled to
indemnification and the corporation shall have the burden of proof to overcome
that presumption in connection with the making by any person, persons or entity
of any determination contrary to that presumption.

       (b)   Effect of Other Proceedings. The termination of any Proceeding or
             ---------------------------
of any claim, issue or matter therein, by judgment, order, settlement or
conviction, or upon a plea of guilty or of nolo contendere or its equivalent,
                                           ---------------
shall not (except as otherwise expressly provided in this Article) of itself
adversely affect the right of an Covered Person to indemnification or create a
presumption that an Covered Person violated the corporation's Code of Conduct or
did not act in Good Faith.

                                      17

 
       (c)   Actions of Others. The knowledge and/or actions, or failure to act,
             -----------------
of any director, officer, employee, agent, trustee or fiduciary of the
Enterprise shall not be imputed to a Covered Person for purposes of determining
the right to indemnification under this Article.

       Section 7.11.  Non-Exclusivity.  The rights of indemnification and to
       ------------   ---------------
receive advancement of Expenses as provided by this Article shall not be deemed
exclusive of any other rights to which a Covered Person may at any time be
entitled under applicable law, the Certificate of Incorporation, these By-Laws,
any agreement, a vote of stockholders or a resolution of the board of directors,
or otherwise. No amendment, alteration, rescission or replacement of this
Article or any provision hereof shall be effective as to an Covered Person with
respect to any action taken or omitted by such Covered Person in such Covered
Person's Corporate Status prior to such amendment, alteration, rescission or
replacement.

       Section 7.12.  Insurance.  The corporation may maintain, at its expense,
       ------------   ---------
an insurance policy or policies to protect itself and any Covered Person,
officer, employee or agent of the corporation or another Enterprise against
liability arising out of this Article or otherwise, whether or not the
corporation would have the power to indemnify any such person against such
liability under the Delaware General Corporation Law.

       Section 7.13.  No Duplicative Payment.  The corporation shall not be
       ------------   ----------------------
liable under this Article to make any payment of amounts otherwise indemnifiable
hereunder if and to the extent that a Covered Person has otherwise actually
received such payment under any insurance policy, contract, agreement or
otherwise.

       Section 7.14.  Severability.  If any provision or provisions of this
       ------------   ------------
Article shall be held to be invalid, illegal or unenforceable for any reason
whatsoever:

       (a)   the validity, legality and enforceability of the remaining
             provisions of this Article (including without limitation, each
             portion of any Section of this Article containing any such
             provision held to be invalid, illegal or unenforceable, that is not
             itself invalid, illegal or unenforceable) shall not in any way be
             affected or impaired thereby; and

             (b)   to the fullest extent possible, the provisions of this
             Article (including, without limitation, each portion of any Section
             of this Article containing any such provision held to be invalid,
             illegal or unenforceable, that is not itself invalid, illegal or
             unenforceable) shall be construed so as to give effect to the
             intent manifested by the provision held invalid, illegal or
             unenforceable.

                                      18

 
                                 ARTICLE VIII.
                                 -------------

                           Miscellaneous Provisions
                           ------------------------

       Section 8.1.  Certificate of Incorporation.  All references in these By-
       -----------   ----------------------------
laws to the Certificate of Incorporation shall be deemed to refer to the
Certificate of Incorporation of the corporation, as amended and in effect from
time to time.

       Section 8.2.  Fiscal Year.  Except as from time to time otherwise
       -----------   -----------
provided by the board of directors, the fiscal year of the corporation shall end
on the 31st day of March of each year.

       Section 8.3.  Corporate Seal.  The board of directors shall have the
       -----------   --------------
power to adopt and alter the seal of the corporation.

       Section 8.4.  Execution of Instruments.  All deeds, leases, transfers,
       -----------   ------------------------
contracts, bonds, notes, and other obligations authorized to be executed by an
officer of the corporation on its behalf shall be signed by the chairman of the
board of directors, the president or the treasurer except as the board of
directors may generally or in particular cases otherwise determine.

       Section 8.5.  Voting of Securities.  Unless the board of directors
       -----------   --------------------
otherwise provides, the chairman of the board of directors, the president or the
treasurer may waive notice of and act on behalf of this corporation, or appoint
another person or persons to act as proxy or attorney in fact for this
corporation with or without discretionary power and/or power of substitution, at
any meeting of stockholders or shareholders of any other corporation or
organization, any of whose securities are held by this corporation.

       Section 8.6.  Evidence of Authority.  A certificate by the secretary or
       -----------   ---------------------
any assistant secretary as to any action taken by the stockholders, directors or
any officer or representative of the corporation shall, as to all persons who
rely thereon in good faith, be conclusive evidence of such action. The exercise
of any power which by law, by the Certificate of Incorporation, or by these By-
laws, or under any vote of the stockholders or the board of directors, may be
exercised by an officer of the corporation only in the event of absence of
another officer or any other contingency shall bind the corporation in favor of
anyone relying thereon in good faith, whether or not such absence or contingency
existed.

       Section 8.7.  Corporate Records.  The original, or attested copies, of
       -----------   -----------------
the Certificate of Incorporation, By-laws, records of all meetings of the
incorporators and stockholders, and the stock transfer books (which shall
contain the names of all stockholders and the record address and the amount of
stock held by each) shall be kept in Delaware at the principal office of the
corporation, or at an office of the corporation, or at an office of its transfer
agent or of the secretary or of the assistant secretary, if any. Said copies and
records need not all be kept in the same office. They shall be available at all
reasonable times to inspection of any stockholder for any purpose but not to
secure a list of stockholders for the purpose of selling said list or copies

                                      19

 
thereof or for using the same for a purpose other than in the interest of the
applicant, as a stockholder, relative to the affairs of the corporation.

       Section 8.8.  Charitable Contributions.  The board of directors from time
       -----------   ------------------------
to time may authorize contributions to be made by the corporation in such
amounts as it may determine to be reasonable to corporations, trusts, funds or
foundations organized and operated exclusively for charitable, scientific or
educational purposes, no part of the net earning of which inures to the private
benefit of any stockholder or individual.

                                  ARTICLE IX.
                                  -----------

                                  Amendments
                                  ----------

       Section 9.1.  Amendment by Stockholders.  Prior to the issuance of stock,
       -----------   -------------------------
these By-laws may be amended, altered or repealed by the incorporator(s) by
majority vote. After stock has been issued, these By-laws may be amended altered
or repealed by the stockholders at any annual or special meeting by vote or a
majority of all shares outstanding and entitled to vote, except that where the
effect of the amendment would be to reduce any voting requirement otherwise
required by law, the Certificate of Incorporation or these By-laws, such
amendment shall require the vote that would have been required by such
provision. Notice and a copy of any proposal to amend these By-laws must be
included in the notice of meeting of stockholders at which action is taken upon
such amendment.

       Section 9.2.  Amendment by Board of Directors.  These By-laws may be
       -----------   -------------------------------
amended or altered by the board of directors at a meeting duly called for the
purpose by majority vote of the directors then in office, except that directors
shall not amend the By-laws in a manner which:

       (a)   changes the stockholder voting requirements for any action;

       (b)   alters or abolishes any preferential right or right of redemption
applicable to a class or series of stock with shares already outstanding;

       (c)   alters the provisions of this Article IX hereof; or

       (d)   permits the board of directors to take any action which under law,
the Certificate of Incorporation, or these By-laws is required to be taken by
the stockholders.

       Any amendment of these By-laws by the board of directors may be altered
or repealed by the stockholders at any annual or special meeting of
stockholders.

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