EXHIBIT 3.26





                                     BY-LAWS

                                       OF

                         MAXUM HEALTH MANAGEMENT CORP.

                             A DELAWARE CORPORATION











                                TABLE OF CONTENTS

                              ARTICLE ONE: OFFICES



                                                                                                      Page
                                                                                                      ----
                                                                                                  
            1.1     Registered Office and Agent .......................................................  1
            1.2     Other Offices .....................................................................  1

                    ARTICLE TWO: MEETINGS OF STOCKHOLDERS

            2.1     Annual Meeting ....................................................................  1
            2.2     Special Meeting ...................................................................  2
            2.3     Place of Meetings .................................................................  2
            2.4     Notice ............................................................................  2
            2.5     Voting List .......................................................................  2
            2.6     Quorum ............................................................................  2
            2.7     Required Vote; Withdrawal of Quorum ...............................................  3
            2.8     Method of Voting; Proxies .........................................................  3
            2.9     Record Date .......................................................................  3
            2.10    Conduct of Meeting ................................................................  4
            2.11    Inspectors ........................................................................  5

                    ARTICLE THREE: DIRECTORS

            3.1     Management.........................................................................  5
            3.2     Number; Qualification; Election; Term .............................................  5
            3.3     Change in Number ..................................................................  6
            3.4     Removal ...........................................................................  6
            3.5     Vacancies .........................................................................  6
            3.6     Meetings of Directors .............................................................  6
            3.7     First Meeting .....................................................................  7
            3.8     Election of Officers ..............................................................  7
            3.9     Regular Meetings ..................................................................  7
            3.10    Special Meetings ..................................................................  7
            3.11    Notice ............................................................................  7
            3.12    Quorum; Majority Vote .............................................................  7
            3.13    Procedure .........................................................................  7
            3.14    Presumption of Assent .............................................................  8
            3.15    Compensation ......................................................................  8



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                    ARTICLE FOUR: COMMITTEES

            4.1     Designation .......................................................................   8
            4.2     Number; Qualification; Term .......................................................   8
            4.3     Authority .........................................................................   8
            4.4     Committee Changes .................................................................   8
            4.5     Alternate Members of Committees ...................................................   9
            4.6     Regular Meetings ..................................................................   9
            4.7     Special Meetings...................................................................   9
            4.8     Quorum; Majority Vote .............................................................   9
            4.9     Minutes ...........................................................................   9
            4.10    Compensation.......................................................................   9
            4.11    Responsibility ....................................................................   9

                    ARTICLE FIVE: NOTICE

            5.1     Method ............................................................................  10
            5.2     Waiver ............................................................................  10

                    ARTICLE SIX: OFFICERS

            6.1     Number; Titles; Term of Office ....................................................  10
            6.2     Removal ...........................................................................  10
            6.3     Vacancies .........................................................................  11
            6.4     Authority .........................................................................  11
            6.5     Compensation ......................................................................  11
            6.6     Chairman of the Board .............................................................  11
            6.7     President .........................................................................  11
            6.8     Vice Presidents ...................................................................  11
            6.9     Treasurer .........................................................................  12
            6.10    Assistant Treasurers ..............................................................  12
            6.11    Secretary .........................................................................  12
            6.12    Assistant Secretaries .............................................................  12

                    ARTICLE SEVEN: CERTIFICATES AND SHAREHOLDERS

            7.1     Certificates for Shares ...........................................................  12
            7.2     Replacement of Lost or Destroyed Certificates .....................................  13
            7.3     Transfer of Shares ................................................................  13
            7.4     Registered Stockholders ...........................................................  13
            7.5     Regulations .......................................................................  13
            7.6     Legends ...........................................................................  13


                                      iii




                                                                                                   
                    ARTICLE EIGHT: MISCELLANEOUS PROVISIONS

             8.1    Dividends .........................................................................  14
             8.2    Reserves ..........................................................................  14
             8.3    Books and Records .................................................................  14
             8.4    Fiscal Year .......................................................................  14
             8.5    Seal ..............................................................................  14
             8.6    Resignations ......................................................................  14
             8.7    Securities of Other Corporations ..................................................  14
             8.8    Telephone Meetings ................................................................  15
             8.9    Action Without a Meeting ..........................................................  15
             8.10   Invalid Provisions ................................................................  16
             8.11   Mortgages, etc. ...................................................................  16
             8.12   Headings ..........................................................................  16
             8.13   References ........................................................................  16
             8.14   Amendments ........................................................................  16



                                       iv









                                     BY-LAWS

                                       OF

                          MAXUM HEALTH MANAGEMENT CORP.

                             A Delaware Corporation

                                    PREAMBLE

        These by-laws are subject to, and governed by, the General Corporation
Law of the State of Delaware (the "Delaware General Corporation Law") and the
certificate of incorporation of Maxum Health Management Corp., a Delaware
corporation (the "Corporation"). In the event of a direct conflict between the
provisions of these by-laws and the mandatory provisions of the Delaware General
Corporation Law or the provisions of the certificate of incorporation of the
Corporation, such provisions of the Delaware General Corporation Law or the
certificate of incorporation of the Corporation, as the case may be, will be
controlling.

                              ARTICLE ONE: OFFICES

        1.1     Registered Office and Agent. The registered office and
registered agent of the Corporation shall be as designated from time to time by
the appropriate filing by the Corporation in the office of the Secretary of
State of the State of Delaware.

        1.2     Other Offices. The Corporation may also have offices at such
other places, both within and without the State of Delaware, as the board of
directors may from time to time determine or as the business of the Corporation
may require.

                      ARTICLE TWO: MEETINGS OF STOCKHOLDERS

        2.1     Annual Meeting. An annual meeting of stockholders of the
Corporation shall be held each calendar year on such date and at such time as
shall be designated from time to time by the board of directors and stated in
the notice of the meeting or in a duly executed waiver of notice of such
meeting. At such meeting, the stockholders shall elect directors and transact
such other business as may properly be brought before the meeting.

        2.2     Special Meeting. A special meeting of the stockholders may be
called at any time by the Chairman of the Board, the President, the board of
directors, and shall be called by the President or the Secretary at the request
in writing of the stockholders of record of not less than ten percent of all
shares entitled to vote at such meeting or as otherwise provided by the
certificate of incorporation of the Corporation. A special meeting shall be held
on such date and at such time as shall be designated by the person(s) calling
the meeting and stated in the notice of


                                        1



the meeting or in a duly executed waiver of notice of such meeting. Only such
business shall be transacted at a special meeting as may be stated or indicated
in the notice of such meeting or in a duly executed waiver of notice of such
meeting.

        2.3     Place of Meetings. An annual meeting of stockholders may be held
at any place within or without the State of Delaware designated by the board of
directors. A special meeting of stockholders may be held at any place within or
without the State of Delaware designated in the notice of the meeting or a duly
executed waiver of notice of such meeting. Meetings of stockholders shall be
held at the principal office of the Corporation unless another place is
designated for meetings in the manner provided herein.

        2.4     Notice. Written or printed notice stating the place, day, and
time of each meeting of the stockholders and, in case-of a special meeting, the
purpose or purposes for which the meeting is called shall be delivered not less
than ten nor more than 60 days before the date of the meeting, either personally
or by mail, by or at the direction of the President, the Secretary, or the
officer or person(s) calling the meeting, to each stockholder of record entitled
to vote at such meeting. If such notice is to be sent by mail, it shall be
directed to such stockholder at his address as it appears on the records of the
Corporation, unless he shall have filed with the Secretary of the Corporation a
written request that notices to him be mailed to some other address, in which
case it shall be directed to him at such other address. Notice of any meeting of
stockholders shall not be required to be given to any stockholder who shall
attend such meeting in person or by proxy and shall not, at the beginning of
such meeting, object to the transaction of any business because the meeting is
not lawfully called or convened, or who shall, either before or after the
meeting, submit a signed waiver of notice, in person or by proxy.

        2.5     Voting List. At least ten days before each meeting of
stockholders, the Secretary or other officer of the Corporation who has charge
of the Corporation's stock ledger, either directly or through another officer
appointed by him or through a transfer agent appointed by the board of
directors, shall prepare a complete list of stockholders entitled to vote
thereat, arranged in alphabetical order and showing the address of each
stockholder and number of shares registered in the name of each stockholder. For
a period of ten days prior to such meeting, such list shall be kept on file at a
place within the city where the meeting is to be held, which place shall be
specified in the notice of meeting or a duly executed waiver of notice of such
meeting or, if not so specified, at the place where the meeting is to be held
and shall be open to examination by any stockholder during ordinary business
hours. Such list shall be produced at such meeting and kept at the meeting at
all times during such meeting and may be inspected by any stockholder who is
present.

        2.6     Quorum. The holders of a majority of the outstanding shares
entitled to vote on a matter, present in person or by proxy, shall constitute a
quorum at any meeting of stockholders, except as otherwise provided by law, the
certificate of incorporation of the


                                        2



Corporation, or these by-laws. If a quorum shall not be present, in person or by
proxy, at any meeting of stockholders, the stockholders entitled to vote thereat
who are present, in person or by proxy, or, if no stockholder entitled to vote
is present, any officer of the Corporation may adjourn the meeting from time to
time, without notice other than announcement at the meeting (unless the board of
directors, after such adjournment, fixes a new record date for the adjourned
meeting), until a quorum shall be present, in person or by proxy. At any
adjourned meeting at which a quorum shall be present, in person or by proxy, any
business may be transacted which may have been transacted at the original
meeting had a quorum been present; provided that, if the adjournment is for
more than 30 days or if after the adjournment a new record date is fixed for the
adjourned meeting, a notice of the adjourned meeting shall be given to each
stockholder of record entitled to vote at the adjourned meeting.

        2.7     Required Vote; Withdrawal of Quorum. When a quorum is present at
any meeting, the vote of the holders of at least a majority of the outstanding
shares entitled to vote who are present, in person or by proxy, shall decide any
question brought before such meeting, unless the question is one on which, by
express provision of statute, the certificate of incorporation of the
Corporation, or these by-laws, a different vote is required, in which case such
express provision shall govern and control the decision of such question. The
stockholders present at a duly constituted meeting may continue to transact
business until adjournment, notwithstanding the withdrawal of enough
stockholders to leave less than a quorum.

        2.8     Method of Voting: Proxies. Except as otherwise provided in the
certificate of incorporation of the Corporation or by law, each outstanding
share, regardless of class, shall be entitled to one vote on each matter
submitted to a vote at a meeting of stockholders. Elections of directors need
not be by written ballot. At any meeting of stockholders, every stockholder
having the right to vote may vote either in person or by a proxy executed in
writing by the stockholder or by his duly authorized attorney-in-fact. Each such
proxy shall be filed with the Secretary of the Corporation before or at the time
of the meeting. No proxy shall be valid after three years from the date of its
execution, unless otherwise provided in the proxy. If no date is stated in a
proxy, such proxy shall be presumed to have been executed on the date of the
meeting at which it is to be voted. Each proxy shall be revocable unless
expressly provided therein to be irrevocable and coupled with an interest
sufficient in law to support an irrevocable power or unless otherwise made
irrevocable by law.

        2.9     Record Date. (a) For the purpose of determining stockholders
entitled to notice of or to vote at any meeting of stockholders, or any
adjournment thereof, 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 of
any other lawful action, the board of directors may fix a record date, which
record date shall not precede the date upon which the resolution fixing the
record date is adopted by the board of directors, for any such determination of


                                        3



stockholders, such date in any case to be not more than 60 days and not less
than ten days prior to such meeting nor more than 60 days prior to any other
action. If no record date is fixed:

                (i)     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.

                (ii)    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.

                (iii)   A determination of stockholders of record entitled to
        notice of or to vote at a meeting of stockholders shall apply to any
        adjournment of the meeting; provided, however, that the board of
        directors may fix a new record date for the adjourned meeting.

        (b)     In order that the Corporation may determine the stockholders
entitled to consent to corporate action in writing without a meeting, the board
of directors may fix a record date, which record date shall not precede the date
upon which the resolution fixing the record date is adopted by the board of
directors, and which date shall not be more than ten days after the date upon
which the resolution fixing the record date is adopted by the board of
directors. If no record date has been fixed by the board of directors, the
record date for determining stockholders entitled to consent to corporate action
in writing without a meeting, when no prior action by the board of directors is
required by law or these by-laws, 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 the State
of Delaware, 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
in the State of Delaware, principal place of business, or such officer or agent
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 law or these by-laws, the record date for
determining stockholders entitled to consent to corporate action in writing
without a meeting shall be at the close of business on the day on which the
board of directors adopts the resolution taking such prior action.

        2.10    Conduct of Meeting. The Chairman of the Board, if such office
has been filled, and, if not or if the Chairman of the Board is absent or
otherwise unable to act, the President shall preside at all meetings of
stockholders. The Secretary shall keep the records of each meeting of
stockholders. In the absence or inability to act of any such officer, such
officer's duties shall be performed by the officer given the authority to act


                                       4

for such absent or non-acting officer under these by-laws or by some person
appointed by the meeting.

        2.11 Inspectors. The board of directors may, in advance of any meeting
of stockholders, appoint one or more inspectors to act at such meeting or any
adjournment thereof. If any of the inspectors so appointed shall fail to appear
or act, the chairman of the meeting shall, or if inspectors shall not have been
appointed, the chairman of the meeting may, appoint one or more inspectors.
Each inspector, before entering upon the discharge of his 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 shall determine the number of shares of capital stock of the
Corporation outstanding and the voting power of each, the number of shares
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
results, and do such acts as are proper to conduct the election or vote with
fairness to all stockholders. On request of the chairman of the meeting, the
inspectors shall make a report in writing of any challenge, request, or matter
determined by them and shall execute a certificate of any fact found by them.
No director or candidate for the office of director shall act as an inspector
of an election of directors. Inspectors need not be stockholders.

                            ARTICLE THREE: DIRECTORS

        3.1 Management. The business and property of the Corporation shall be
managed by the board of directors. Subject to the restrictions imposed by law,
the certificate of incorporation of the Corporation, or these by-laws, the board
of directors may exercise all the powers of the Corporation.

        3.2 Number: Qualification: Election: Term. The number of directors which
shall constitute the entire board of directors shall be not less than one. The
first board of directors shall consist of the number of directors named in the
certificate of incorporation of the Corporation or, if no directors are so
named, shall consist of the number of directors elected by the incorporator(s)
at an organizational meeting or by unanimous written consent in lieu thereof.
Thereafter, within the limits above specified, the number of directors which
shall constitute the entire board of directors shall be determined by resolution
of the board of directors or by resolution of the stockholders at the annual
meeting thereof or at a special meeting thereof called for that purpose. Except
as otherwise required by law, the certificate of incorporation of the
Corporation, or these by-laws, the directors shall be elected at an annual
meeting of stockholders at which a quorum is present. Directors shall be elected
by a plurality of the votes of the shares present in person or represented by
proxy and entitled to vote on the election of directors. Each director so chosen
shall hold office until the first annual meeting of stockholders held after his
election and until his successor is elected and qualified or, if earlier, until

                                        5







his death, resignation, or removal from office. None of the directors need be a
stockholder of the Corporation or a resident of the State of Delaware. Each
director must have attained the age of majority.

        3.3 Change in Number. No decrease in the number of directors
constituting the entire board of directors shall have the effect of shortening
the term of any incumbent director.

        3.4 Removal. Except as otherwise provided in the certificate of
incorporation of the Corporation or these by-laws, at any meeting of
stockholders called expressly for that purpose, any director or the entire board
of directors may be removed, with or without cause, by a vote of the holders of
a majority of the shares then entitled to vote on the election of directors;
provided, however, that so long as stockholders have the right to cumulate votes
in the election of directors pursuant to the certificate of incorporation of the
Corporation, if less than the entire board of directors is to be removed, no one
of the directors may be removed if the votes cast against his removal would be
sufficient to elect him if then cumulatively voted at an election of the entire
board of directors.

        3.5 Vacancies. Vacancies and newly-created directorships resulting from
any increase in the authorized number of directors may be filled by a majority
of the directors then in office, though less than a quorum, or by the sole
remaining director, and each director so chosen shall hold office until the
first annual meeting of stockholders held after his election and until his
successor is elected and qualified or, if earlier, until his death, resignation,
or removal from office. If there are no directors in office, an election of
directors may be held in the manner provided by statute. If, at the time of
filling any vacancy or any newly-created directorship, the directors then in
office shall constitute less than a majority of the whole board of directors (as
constituted immediately prior to any such increase), the Court of Chancery may,
upon application of any stockholder or stockholders holding at least 10% of the
total number of the shares at the time outstanding having the right to vote for
such directors, summarily order an election to be held to fill any such
vacancies or newly created directorships or to replace the directors chosen by
the directors then in office. Except as otherwise provided in these by-laws,
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 the power to fill such vacancy or vacancies,
the vote thereon to take effect when such resignation or resignations shall
become effective, and each director so chosen shall hold office as provided in
these by-laws with respect to the filling of other vacancies.

        3.6 Meetings of Directors. The directors may hold their meetings and may
have an office and keep the books of the Corporation, except as otherwise
provided by statute, in such place or places within or without the State of
Delaware as the board of directors may from time to time determine or as shall
be specified in the notice of such meeting or duly executed waiver of notice of
such meeting.



                                        6







        3.7 First Meeting. Each newly elected board of directors may hold its
first meeting for the purpose of organization and the transaction of business,
if a quorum is present, immediately after and at the same place as the annual
meeting of stockholders, and no notice of such meeting shall be necessary.

        3.8 Election of Officers. At the first meeting of the board of directors
after each annual meeting of stockholders at which a quorum shall be present,
the board of directors shall elect the officers of the Corporation.

        3.9 Regular Meetings. Regular meetings of the board of directors shall
be held at such times and places as shall be designated from time to time by
resolution of the board of directors. Notice of such regular meetings shall not
be required.

        3.10 Special Meetings. Special meetings of the board of directors shall
be held whenever called by the Chairman of the Board, the President, or any
director.

        3.11 Notice. The Secretary shall give notice of each special meeting to
each director at least 24 hours before the meeting. Notice of any such meeting
need not be given to any director who shall, either before or after the meeting,
submit a signed waiver of notice or who shall attend such meeting without
protesting, prior to or at its commencement, the lack of notice to him. Neither
the business to be transacted at, nor the purpose of, any regular or special
meeting of the board of directors need be specified in the notice or waiver of
notice of such meeting.

        3.12 Quorum; Majority Vote. At all meetings of the board of directors, a
majority of the directors fixed in the manner provided in these by-laws shall
constitute a quorum for the transaction of business. If at any meeting of the
board of directors there be less than a quorum present, a majority of those
present or any director solely present may adjourn the meeting from time to time
without further notice. Unless the act of a greater number is required by law,
the certificate of incorporation of the Corporation, or these by-laws, the act
of a majority of the directors present at a meeting at which a quorum is in
attendance shall be the act of the board of directors. At any time that the
certificate of incorporation of the Corporation provides that directors elected
by the holders of a class or series of stock shall have more or less than one
vote per director on any matter, every reference in these by-laws to a majority
or other proportion of directors shall refer to a majority or other proportion
of the votes of such directors.

        3.13 Procedure. At meetings of the board of directors, business shall be
transacted in such order as from time to time the board of directors may
determine. The Chairman of the Board, if such office has been filled, and, if
not or if the Chairman of the Board is absent or otherwise unable to act, the
President shall preside at all meetings of the board of directors. In the
absence or inability to act of either such officer, a chairman shall be chosen
by the board of directors from among the directors present. The


                                        7







Secretary of the Corporation shall act as the secretary of each meeting of the
board of directors unless the board of directors appoints another person to act
as secretary of the meeting. The board of directors shall keep regular minutes
of its proceedings which shall be placed in the minute book of the Corporation.

        3.14 Presumption of Assent. A director of the Corporation who is present
at the meeting of the board of directors at which action on any corporate matter
is taken shall be presumed to have assented to the action unless his dissent
shall be entered in the minutes of the meeting or unless he shall file his
written dissent to such action with the person acting as secretary of the
meeting before the adjournment thereof or shall forward any dissent by certified
or registered mail to the Secretary of the Corporation immediately after the
adjournment of the meeting. Such right to dissent shall not apply to a director
who voted in favor of such action.

        3.15 Compensation. The board of directors shall have the authority to
fix the compensation, including fees and reimbursement of expenses, paid to
directors for attendance at regular or special meetings of the board of
directors or any committee thereof; provided, that nothing contained herein
shall be construed to preclude any director from serving the Corporation in any
other capacity or receiving compensation therefor.

                            ARTICLE FOUR: COMMITTEES

        4.1 Designation. The board of directors may, by resolution adopted by a
majority of the entire board of directors, designate one or more committees.

        4.2 Number: Qualification-Term. Each committee shall consist of one or
more directors appointed by resolution adopted by a majority of the entire board
of directors. The number of committee members may be increased or decreased from
time to time by resolution adopted by a majority of the entire board of
directors. Each committee member shall serve as such until the earliest of (i)
the expiration of his term as director, (ii) his resignation as a committee
member or as a director, or (iii) his removal as a committee member or as a
director.

        4.3 Authority. Each committee, to the extent expressly provided in the
resolution establishing such committee, shall have and may exercise all of the
authority of the board of directors in the management of the business and
property of the Corporation except to the extent expressly restricted by law,
the certificate of incorporation of the Corporation, or these by-laws.

        4.4 Committee Changes. The board of directors shall have the power at
any time to fill vacancies in, to change the membership of, and to discharge any
committee.




                                        8







         4.5      Alternate Members of Committees. The board of directors may
designate one or more directors as alternate members of any committee. Any
such alternate member may replace any absent or disqualified member at any
meeting of the committee. If no alternate committee members have been so
appointed to a committee or each such alternate committee member is absent or
disqualified, the member or members of such committee present at any meeting
and not disqualified from voting, whether or not he or they constitute a
quorum, may unanimously appoint another member of the board of directors to
act at the meeting in the place of any such absent or disqualified member.

         4.6      Regular Meetings. Regular meetings of any committee may be
held without notice at such time and place as may be designated from time to
time by the committee and communicated to all members thereof.

         4.7      Special Meetings. Special meetings of any committee may be
held whenever called by any committee member. The committee member calling any
special meeting shall cause notice of such special meeting, including therein
the time and place of such special meeting, to be given to each committee
member at least two days before such special meeting. Neither the business to
be transacted at, nor the purpose of, any special meeting of any committee
need be specified in the notice or waiver of notice of any special meeting.

         4.8      Quorum: Majority Vote. At meetings of any committee, a
majority of the number of members designated by the board of directors shall
constitute a quorum for the transaction of business. If a quorum is not
present at a meeting of any committee, a majority of the members present may
adjourn the meeting from time to time, without notice other than an
announcement at the meeting, until a quorum is present. The act of a majority
of the members present at any meeting at which a quorum is in attendance shall
be the act of a committee, unless the act of a greater number is required by
law, the certificate of incorporation of the Corporation, or these by-laws.

         4.9      Minutes. Each committee shall cause minutes of its
proceedings to be prepared and shall report the same to the board of directors
upon the request of the board of directors. The minutes of the proceedings of
each committee shall be delivered to the Secretary of the Corporation for
placement in the minute books of the Corporation.

         4.10     Compensation. Committee members may, by resolution of the
board of directors, be allowed a fixed sum and expenses of attendance, if any,
for attending any committee meetings or a stated salary.

         4.11     Responsibility. The designation of any committee and the
delegation of authority to it shall not operate to relieve the board of
directors or any director of any responsibility imposed upon it or such
director by law.

                                      9


                             ARTICLE FIVE: NOTICE

         5.1      Method. Whenever by statute, the certificate of
incorporation of the Corporation, or these by-laws, notice is required to be
given to any committee member, director, or stockholder and no provision is made
as to how such notice shall be given, personal notice shall not be required and
any such notice may be given (a) in writing, by mail, postage prepaid, addressed
to such committee member, director, or stockholder at his address as it appears
on the books or (in the case of a stockholder) the stock transfer records of the
Corporation, or (b) by any other method permitted by law (including but not
limited to overnight courier service, telegram, telex, or telefax). Any notice
required or permitted to be given by mail shall be deemed to be delivered and
given at the time when the same is deposited in the United States mail as
aforesaid. Any notice required or permitted to be given by overnight courier
service shall be deemed to be delivered and given at the time delivered to such
service with all charges prepaid and addressed as aforesaid. Any notice required
or permitted to be given by telegram, telex, or telefax shall be deemed to be
delivered and given at the time transmitted with all charges prepaid and
addressed as aforesaid.

         5.2      Waiver. Whenever any notice is required to be given to any
stockholder, director, or committee member of the Corporation by statute, the
certificate of incorporation of the Corporation, or these by-laws, a waiver
thereof in writing signed by the person or persons entitled to such notice,
whether before or after the time stated therein, shall be equivalent to the
giving of such notice. Attendance of a stockholder, director, or committee
member at a meeting shall constitute a waiver of notice of such meeting, except
where such person attends for the express purpose of objecting to the
transaction of any business on the ground that the meeting is not lawfully
called or convened.

                             ARTICLE SIX: OFFICERS

         6.1      Number: Titles: Term of Office. The officers of the
Corporation shall be a President, a Secretary, and such other officers as the
board of directors may from time to time elect or appoint, including a Chairman
of the Board, one or more Vice Presidents (with each Vice President to have such
descriptive title, if any, as the board of directors shall determine), and a
Treasurer. Each officer shall hold office until his successor shall have been
duly elected and shall have qualified, until his death, or until he shall resign
or shall have been removed in the manner hereinafter provided. Any two or more
offices may be held by the same person. None of the officers need be a
stockholder or a director of the Corporation or a resident of the State of
Delaware.

         6.2      Removal.  Any  officer  or agent  elected  or  appointed  by
the board of directors may be removed by the board of directors whenever in its
judgment the best interest of the Corporation will be served thereby, but such
removal shall be without


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prejudice to the contract rights, if any, of the person so removed. Election or
appointment of an officer or agent shall not of itself create contract rights.

         6.3      Vacancies. Any vacancy occurring in any office of the
Corporation (by death, resignation, removal, or otherwise) may be filled by the
board of directors.

         6.4      Authority. Officers shall have such authority and perform such
duties in the management of the Corporation as are provided in these by-laws or
as may be determined by resolution of the board of directors not inconsistent
with these by-laws.

         6.5      Compensation. The compensation, if any, of officers and agents
shall be fixed from time to time by the board of directors; provided, however,
that the board of directors may delegate the power to determine the compensation
of any officer and agent (other than the officer to whom such power is
delegated) to the Chairman of the Board or the President.

         6.6      Chairman of the Board. The Chairman of the Board, if elected
by the board of directors, shall have such powers and duties as may be
prescribed by the board of directors. Such officer shall preside at all meetings
of the stockholders and of the board of directors. Such officer may sign all
certificates for shares of stock of the Corporation.

         6.7      President. The President shall be the chief executive officer
of the Corporation and, subject to the board of directors, he shall have general
executive charge, management, and control of the properties and operations of
the Corporation in the ordinary course of its business, with all such powers
with respect to such properties and operations as may be reasonably incident to
such responsibilities. If the board of directors has not elected a Chairman of
the Board or in the absence or inability to act of the Chairman of the Board,
the President shall exercise all of the powers and discharge all of the duties
of the Chairman of the Board. As between the Corporation and third parties, any
action taken by the President in the performance of the duties of the Chairman
of the Board shall be conclusive evidence that there is no Chairman of the Board
or that the Chairman of the Board is absent or unable to act.

         6.8      Vice Presidents. Each Vice President shall have such powers
and duties as may be assigned to him by the board of directors, the Chairman of
the Board, or the President, and (in order of their seniority as determined by
the board of directors or, in the absence of such determination, as determined
by the length of time they have held the office of Vice President) shall
exercise the powers of the President during that officer's absence or inability
to act. As between the Corporation and third parties, any action taken by a Vice
President in the performance of the duties of the President shall be conclusive
evidence of the absence or inability to act of the President at the time such
action was taken.


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         6.9      Treasurer. The Treasurer shall have custody of the
Corporation's funds and securities, shall keep full and accurate account of
receipts and disbursements, shall deposit all monies and valuable effects in the
name and to the credit of the Corporation in such depository or depositories as
may be designated by the board of directors, and shall perform such other duties
as may be prescribed by the board of directors, the Chairman of the Board, or
the President.

         6.10     Assistant Treasurers. Each Assistant Treasurer shall have such
powers and duties as may be assigned to him by the board of directors, the
Chairman of the Board, or the President. The Assistant Treasurers (in the order
of their seniority as determined by the board of directors or, in the absence of
such a determination, as determined by the length of time they have held the
office of Assistant Treasurer) shall exercise the powers of the Treasurer during
that officer's absence or inability to act.

         6.11     Secretary. Except as otherwise provided in these bylaws, the
Secretary shall keep the minutes of all meetings of the board of directors and
of the stockholders in books provided for that purpose, and he shall attend to
the giving and service of all notices. He may sign with the Chairman of the
Board or the President, in the name of the Corporation, all contracts of the
Corporation and affix the seal of the Corporation thereto. He may sign with the
Chairman of the Board or the President all certificates for shares of stock of
the Corporation, and he shall have charge of the certificate books, transfer
books, and stock papers as the board of directors may direct, all of which shall
at all reasonable times be open to inspection by any director upon application
at the office of the Corporation during business hours. He shall in general
perform all duties incident to the office of the Secretary, subject to the
control of the board of directors, the Chairman of the Board, and the President.

         6.12     Assistant Secretaries. Each Assistant Secretary shall have
such powers and duties as may be assigned to him by the board of directors, the
Chairman of the Board, or the President. The Assistant Secretaries (in the order
of their seniority as determined by the board of directors or, in the absence of
such a determination, as determined by the length of time they have held the
office of Assistant Secretary) shall exercise the powers of the Secretary during
that officer's absence or inability to act.

                 ARTICLE SEVEN: CERTIFICATES AND SHAREHOLDERS

         7.1      Certificates for Shares. Certificates for shares of stock of
the Corporation shall be in such form as shall he approved by the board of
directors. The certificates shall be signed by the Chairman of the Board or the
President or a Vice President and also by the Secretary or an Assistant
Secretary or by the Treasurer or an Assistant Treasurer. Any and all signatures
on the certificate may be a facsimile and may be sealed with the seal of the
Corporation or a facsimile thereof. If any officer, transfer agent, or registrar
who has signed, or whose facsimile signature has been placed upon, a certificate
has ceased to be such officer, transfer agent, or registrar before such
certificate is issued,

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such certificate may be issued by the Corporation with the same effect as if he
were such officer, transfer agent, or registrar at the date of issue. The
certificates shall be consecutively numbered and shall be entered in the books
of the Corporation as they are issued and shall exhibit the holder's name and
the number of shares.

        7.2 Replacement Of Lost or Destroyed Certificates. The board of
directors may direct a new certificate or certificates to be issued in place of
a certificate or certificates theretofore issued by the Corporation and alleged
to have been lost or destroyed, upon the making of an affidavit of that fact by
the person claiming the certificate or certificates representing shares to be
lost or destroyed. When authorizing such issue of a new certificate or
certificates the board of directors may, in its discretion and as a condition
precedent to the issuance thereof, require the owner of such lost or destroyed
certificate or certificates or his legal representative, to advertise the same
in such manner as it shall require and/or to give the Corporation a bond with a
surety or sureties satisfactory to the Corporation in such sum as It may direct
as indemnity against any claim, or expense resulting from a claim, that may be
made against the Corporation with respect to the certificate or certificates
alleged to have been lost or destroyed.

        7.3 Transfer of Shares. Shares of stock of the Corporation shall be
transferable only on the books of the Corporation by the holders thereof in
person or by their duly authorized attorneys or legal representatives. Upon
surrender to the Corporation or the transfer agent of the Corporation of a
certificate representing shares duly endorsed or accompanied by proper evidence
of succession, assignment, or authority to transfer, the Corporation or its
transfer agent shall issue a new certificate to the person entitled thereto,
cancel the old certificate, and record the transaction upon its books.

        7.4 Registered Stockholders. The Corporation shall be entitled to treat
the holder of record of any share or shares of stock as the holder in fact
thereof and, accordingly, shall not be bound to recognize any equitable or other
claim to or interest in such share or shares on the part of any other person,
whether or not it shall have express or other notice thereof, except as
otherwise provided by law.

        7.5 Regulations. The board of directors shall have the power and
authority to make all such rules and regulations as they may deem expedient
concerning the issue, transfer, and registration or the replacement of
certificates for shares of stock of the Corporation.

        7.6 Legends. The board of directors shall have the power and authority
to provide that certificates representing shares of stock bear such legends as
the board of directors deems appropriate to assure that the Corporation does not
become liable for violations of federal or state securities laws or other
applicable law.





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                     ARTICLE EIGHT: MISCELLANEOUS PROVISIONS

        8.1 Dividends. Subject to provisions of law and the certificate of
incorporation of the Corporation, dividends may be declared by the board of
directors at any regular or special meeting and may be paid in cash, in
property, or in shares of stock of the Corporation. Such declaration and payment
shall be at the discretion of the board of directors.

        8.2 Reserves. There may be created by the board of directors out of
funds of the Corporation legally available therefor such reserve or reserves as
the directors from time to time, in their discretion, consider proper to provide
for contingencies, to equalize dividends, or to repair or maintain any property
of the Corporation, or for such other purpose as the board of directors shall
consider beneficial to the Corporation, and the board of directors may modify or
abolish any such reserve in the manner in which it was created.

        8.3 Books and Records. The Corporation shall keep correct and complete
books and records of account, shall keep minutes of the proceedings of its
stockholders and board of directors and shall keep at its registered office or
principal place of business, or at the office of its transfer agent or
registrar, a record of its stockholders, giving the names and addresses of all
stockholders and the number and class of the shares held by each.

        8.4 Fiscal Year. The fiscal year of the Corporation shall he fixed by
the board of directors; provided, that if such fiscal year is not fixed by the
board of directors and the selection of the fiscal year is not expressly
deferred by the board of directors, the fiscal year shall be the calendar year.

        8.5 Seal. The seal of the Corporation shall be such as from time to time
may be approved by the board of directors.

        8.6 Resignations. Any director, committee member, or officer may resign
by so stating at any meeting of the board of directors or by giving written
notice to the board of directors, the Chairman of the Board, the President, or
the Secretary. Such resignation shall take effect at the time specified therein
or, if no time is specified therein, immediately upon its receipt. Unless
otherwise specified therein, the acceptance of such resignation shall not be
necessary to make it effective.

        8.7 Securities of Other Corporations. The Chairman of the Board, the
President, or any Vice President of the Corporation shall have the power and
authority to transfer, endorse for transfer, vote, consent, or take any other
action with respect to any securities of another issuer which may be held or
owned by the Corporation and to make, execute, and deliver any waiver, proxy,
or consent with respect to any such securities.



                                       14










        8.8 Telephone Meetings. Stockholders (acting for themselves or through a
proxy), members of the board of directors, and members of a committee of the
board of directors may participate in and hold a meeting of such stockholders,
board of directors, or committee by means of a conference telephone or similar
communications equipment by means of which persons participating in the meeting
can hear each other, and participation in a meeting pursuant to this section
shall constitute presence in person at such meeting, except where a person
participates in the meeting for the express purpose of objecting to the
transaction of any business on the ground that the meeting is not lawfully
called or convened.

        8.9 Action Without a Meeting. (a) Unless otherwise provided in the
certificate of incorporation of the Corporation, any action required by the
Delaware General Corporation Law to be taken at an annual or special meeting of
the stockholders, or any action which may be taken at any annual or special
meeting of the stockholders, may be taken without a meeting, without prior
notice, and without a vote, if a consent or consents in writing, setting forth
the action so taken, shall be signed by the holders (acting for themselves or
through a proxy) of outstanding stock having not less than the minimum number of
votes that would be necessary to authorize or take such action at a meeting at
which the holders of all shares entitled to vote thereon were present and voted
and shall be delivered to the Corporation by delivery to its registered office
in the State of Delaware, 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. Every written consent of stockholders
shall bear the date of signature of each stockholder who signs the consent and
no written consent shall be effective to take the corporate action referred to
therein unless, within sixty days of the earliest dated consent delivered in the
manner required by this Section 8.9(a) to the Corporation, written consents
signed by a sufficient number of holders to take action are delivered to the
Corporation by delivery to its registered office in the State of Delaware, 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, principal place
of business, or such officer or agent shall be by hand or by certified or
registered mail, return receipt requested.

        (b)     Unless otherwise restricted by the certificate of incorporation
of the Corporation or by these by-laws, any action required or permitted to be
taken at a meeting of the board of directors, or of any committee of the board
of directors, may be taken without a meeting if a consent or consents in
writing, setting forth the action so taken, shall be signed by all the directors
or all the committee members, as the case may be, entitled to vote with respect
to the subject matter thereof, and such consent shall have the same force and
effect as a vote of such directors or committee members, as the case may be, and
may be stated as such in any certificate or document filed with the Secretary
of State of the State of Delaware or in any certificate delivered to any person.
Such consent or consents shall be filed with the minutes of proceedings of the
board or committee, as the case may be.


                                       15









        8.10 Invalid Provisions. If any part of these by-laws shall be held
invalid or inoperative for any reason, the remaining parts, so far as it is
possible and reasonable, shall remain valid and operative.

        8.11 Mortgages. etc.. With respect to any deed, deed of trust, mortgage,
or other instrument executed by the Corporation through its duly authorized
officer or officers, the attestation to such execution by the Secretary of the
Corporation shall not be necessary to constitute such deed, deed of trust,
mortgage, or other instrument a valid and binding obligation against the
Corporation unless the resolutions, if any, of the board of directors
authorizing such execution expressly state that such attestation is necessary.

        8.12 Headings. The headings used in these by-laws have been inserted for
administrative convenience only and do not constitute matter to be construed in
interpretation.

        8.13 References. Whenever herein the singular number is used, the same
shall include the plural where appropriate, and words of any gender should
include each other gender where appropriate.

        8.14 Amendments. These by-laws may be altered, amended, or repealed or
new by-laws may be adopted by the stockholders or by the board of directors at
any regular meeting of the stockholders or the board of directors or at any
special meeting of the stockholders or the board of directors if notice of such
alteration, amendment, repeal, or adoption of new by-laws be contained in the
notice of such special meeting.

        The undersigned, the Assistant Secretary of the Corporation, hereby
certifies that the foregoing by-laws were adopted by unanimous consent by the
directors of the Corporation on June 20, 1996, effective as of March 1, 1993.



                                          /s/ DON G. HICKS
                                        ----------------------------------------
                                        Don G. Hicks, Assistant Secretary











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