PERINI CORPORATION



                                       and



                        THE FIRST NATIONAL BANK OF BOSTON


                                 as Rights Agent











                          Shareholder Rights Agreement

                         Dated as of September 23, 1988

                             as amended and restated

                               as of May 17, 1990












                                Table of Contents
                                -----------------


     SECTION                                                       PAGE

        1       Certain Definitions...........................       1

        2       Appointment of Rights Agent...................       5

        3       Issue of Right Certificates...................       6

        4       Form of Right Certificates....................       8

        5       Countersignature and Registration.............       9

        6       Transfer, Split Up, Combination and Exchange
                  of Right Certificates; Mutilated,
                  Destroyed, Lost or Stolen Right
                  Certificates................................      10

        7       Exercise of Rights; Exercise Price; Expiration
                  Date of Rights..............................      11

        8       Cancellation and Destruction of
                  Right Certificates..........................      13

        9       Reservation and Availability of
                  Preferred Stock.............................      13

   10   Preferred Stock Record Date...................              15

   11   Adjustment of Exercise Price, Number and Kind
                  of Shares or Number of Rights...............      15

   12   Certificate of Adjusted Exercise Price or
                  Number of Shares............................      25

   13   Consolidation, Merger or Sale or Transfer
                  of Assets or Earning Power..................      25

   14   Fractional Rights and Fractional Shares.......              28

   15   Rights of Action..............................              29


   16   Agreement of Right Holders....................              29

   17   Right Certificate Holder Not Deemed
                  a Shareholder...............................      30

   18   Concerning the Rights Agent...................              30

   19   Merger or Consolidation or Change of Name
                         of Rights Agent..........................  31

   20   Duties of Rights Agent........................              32

   21   Change of Rights Agent........................              34

   22   Issuance of New Right Certificates............              35

   23   Redemption and Termination....................              36

   24   Exchange  ....................................              38

   25   Notice of Certain Events......................              38

   26   Notices....................................                 39

   27   Supplements and Amendments....................              40

   28   Successors....................................              41

   29   Determinations and Actions by the
                         Board of Directors.......................  41

   30   Benefits of this Agreement....................              42

   31   Severability...............................                 42

   32   Governing Law.................................              42

   33   Counterparts..................................              42

   34   Descriptive Headings..........................              43



Exhibit A --    Form of Certificate of Vote of
                Directors Establishing
                Series A Junior Participating
                Cumulative Preferred Stock

Exhibit B --    Form of Right Certificate

Exhibit C --    Form of Summary of Rights


                          SHAREHOLDER RIGHTS AGREEMENT


         Agreement,  dated as of September  23, 1988, as amended and restated as
of May 17, 1990, between Perini  Corporation,  a Massachusetts  corporation (the
"Company"),   and  The  First  National  Bank  of  Boston,  a  national  banking
association (the "Rights
Agent").

                               W I T N E S S E T H

         WHEREAS,  on  September  23, 1988 the Board of Directors of the Company
authorized  and declared a dividend  distribution  of one Right (as  hereinafter
defined) for each outstanding  share of Common Stock, par value $1.00 per share,
of the Company (the "Common  Stock")  outstanding as of the close of business on
October 6, 1988 (the "Record Date"),  (other than shares of Common Stock held in
the Company's treasury on the Record Date), and contemplates the issuance of one
Right for each share of Common Stock of the Company issued  (whether  originally
issued or sold from the  Company's  treasury)  between  the Record  Date and the
earlier  of the  Distribution  Date and the  Expiration  Date (as such terms are
defined in Section 3 hereof),  each Right  initially  representing  the right to
purchase  one  one-hundredth  of  a  share  of  Series  A  Junior  Participating
Cumulative  Preferred  Stock  of the  Company  having  the  rights,  powers  and
preferences  set  forth  in  the  form  of  Certificate  of  Vote  of  Directors
Establishing a Series of a Class of Stock attached hereto as Exhibit A, upon the
terms and subject to the conditions hereinafter set forth (the "Rights");

         WHEREAS,  in  accordance  with  the  terms  of the  Shareholder  Rights
Agreement  dated as of September 23, 1988 (the "Rights  Agreement")  between the
Company and the Rights  Agent,  the Company  deems it advisable  and in the best
interests  of  its  shareholders  to  make  certain  amendments  to  the  Rights
Agreement;

         NOW,  THEREFORE,  in  consideration  of the  premises  and  the  mutual
agreements  herein set forth, the parties hereby agree that the Rights Agreement
is hereby amended and restated as follows:

         Section 1. Certain  Definitions.  For purposes of this  Agreement,  the
following terms have the meanings indicated:

                  (a) "Acquiring  Person" shall mean any Person (as such term is
hereinafter defined) who or which, together with all Affiliates (as such term is
hereinafter  defined) and Associates  (as such term is  hereinafter  defined) of
such Person, shall be the Beneficial Owner (as such term is hereinafter defined)
of 20% or more of the  shares of Common  Stock then  outstanding,  but shall not
include (i) the  Company,  (ii) any  Subsidiary  of the Company (as such term is
hereinafter  defined),  (iii) any  employee  benefit  plan of the Company or any
Subsidiary of the Company (as such term is hereinafter defined), (iv) any entity
or Person holding shares of Common Stock organized,  appointed or established by
the Company or any  Subsidiary  for or pursuant to the terms of any such plan or
(v) The Perini Memorial Foundation, Inc., The Joseph Perini Memorial Foundation,
or any of the various  trusts  established  under the Wills of Louis R.  Perini,
Sr., Joseph R. Perini,  Sr. or Charles B. Perini,  Sr. The Persons  described in
clauses  (i)  through  (v) above are  referred  to herein as  "Exempt  Persons."
Notwithstanding  the foregoing,  no Person shall become an "Acquiring Person" as
the result of an acquisition  of Common Stock by the Company which,  by reducing
the number of shares outstanding,  increases the proportionate  number of shares
beneficially  owned by such  Person  to 20% or more of the  Common  Stock of the
Company then outstanding;  provided,  however, that if a Person shall become the
Beneficial  Owner  of 20% or  more  of the  Common  Stock  of the  Company  then
outstanding  by reason of share  purchases by the Company and shall,  after such
share  purchases by the Company,  become the Beneficial  Owner of any additional
shares of Common Stock of the Company, then such Person shall be deemed to be an
"Acquiring Person".

                  (b) "Adverse  Person" shall mean any Person  declared to be an
Adverse  Person by the Board of Directors upon a  determination  of the Board of
Directors  that the  criteria  set forth in Section  11(a)(ii)(B)  apply to such
Person.

                  (c)  "Affiliate"  and  "Associate"  shall have the  respective
meanings  ascribed  to such  terms  in  Rule  12b-2  of the  General  Rules  and
Regulations under the Securities Exchange Act of 1934, as amended (the "Exchange
Act"), as in effect on the date of this Agreement;  provided,  however,  that no
Person who is a director or officer of the Company  shall be deemed an Affiliate
or an  Associate  of any other  director or officer of the  Company  solely as a
result of his or her position as director or officer of the Company.

                  (d) A Person  shall be deemed the  "Beneficial  Owner" of, and
shall be deemed to "beneficially own," any securities:


                    (i) which such Person or any of such Person's  Affiliates or
Associates, directly or indirectly, beneficially owns (as determined pursuant to
Rule 13d-3 of the General  Rules and  Regulations  under the Exchange Act, as in
effect on the date of this Agreement) or has the right to dispose of;

                    (ii) which such Person or any of such Person's Affiliates or
Associates, directly or indirectly, has

                    (A) the right to acquire  (whether such right is exercisable
immediately or after the passage of time) pursuant to any agreement, arrangement
or understanding  (whether or not in writing) or upon the exercise of conversion
rights, exchange rights, rights (other than these Rights),  warrants or options,
or  otherwise;  provided,  however,  that  a  Person  shall  not be  deemed  the
"Beneficial  Owner"  of,  or to  "beneficially  own,"  (1)  securities  tendered
pursuant  to a tender  or  exchange  offer  made by such  Person  or any of such
Person's  Affiliates or Associates  until such tendered  securities are accepted
for purchase or exchange; (2) securities issuable upon exercise of Rights at any
time prior to the occurrence of a Triggering  Event; or (3) securities  issuable
upon  exercise of Rights from and after the  occurrence  of a Triggering  Event,
which Rights were acquired by such Person or any of such Person's  Affiliates or
Associates prior to the Distribution Date or pursuant to Sections 3(a), 11(i) or
22 hereof; or

                    (B) the right to vote pursuant to any agreement, arrangement
or understanding (whether or not in writing);  provided,  however, that a Person
shall not be deemed the  "Beneficial  Owner" of, or to  "beneficially  own," any
security under this clause (B) if the agreement, arrangement or understanding to
vote such security (1) arises solely from a revocable proxy given in response to
a public proxy or consent solicitation made pursuant to, and in accordance with,
the  applicable  rules and  regulations  of the Exchange Act and (2) is not also
then  reportable  by such person on Schedule  13D under the Exchange Act (or any
comparable or successor report); or

                    (iii) which are beneficially owned,  directly or indirectly,
by any other  Person (or any  Affiliate or  Associate  thereof)  with which such
Person or any of such  Person's  Affiliates  or  Associates  has any  agreement,
arrangement  or  understanding  (whether or not in writing),  for the purpose of
acquiring, holding, voting (except pursuant to a revocable proxy as described in
clause (B) of Section  1(d)(ii)  hereof) or disposing of any  securities  of the
Company;  provided,  however,  that (1) no  Person  engaged  in  business  as an
underwriter of securities shall be deemed the Beneficial Owner of any securities
acquired through such Person's  participation as an underwriter in good faith in
a firm commitment underwriting until the expiration of 40 days after the date of
such  acquisition  and (2) no Person  who is a  director  or an  officer  of the
Company  shall be deemed,  solely as a result of his or her position as director
or officer of the Company, the Beneficial Owner of any securities of the Company
that are beneficially owned by any other director or officer of the Company.

                  (e)  "Business  Day" shall mean any day other than a Saturday,
Sunday,  or  a  day  on  which  banking  institutions  in  the  Commonwealth  of
Massachusetts are authorized or obligated by law or executive order to close.

                  (f)  "Close of  business"  on any given  date  shall mean 5:00
P.M., Boston time, on such date; provided,  however,  that if such date is not a
Business  Day it shall  mean 5:00  P.M.,  Boston  time,  on the next  succeeding
Business Day.

                  (g)  "Common  Stock"  shall mean the Common  Stock,  par value
$1.00 per share,  of the  Company,  except  that  "Common  Stock" when used with
reference to any Person other than the Company shall mean the capital stock with
the greatest  voting power, or the equity  securities or other equity  interests
having  power to control or direct the  management,  of such  Person or, if such
Person is a Subsidiary of another Person,  the Person which ultimately  controls
such  first-mentioned  Person and which has issued and outstanding  such capital
stock, equity securities or equity interests.

                  (h) "Disinterested  Director" shall mean (i) any member of the
Company's Board of Directors who is not an employee of the Company or any of its
Subsidiaries and is not an Acquiring  Person,  an Adverse Person or an Affiliate
or Associate of any such Person or a  representative  or nominee of an Acquiring
Person, an Adverse Person or any such Affiliate or Associate and was a member of
the Company's Board of Directors  prior to the date of this Agreement,  and (ii)
any person who subsequently becomes a member of the Company's Board of Directors
who is not an Acquiring  Person,  an Adverse Person or an Affiliate or Associate
of any such Person or a  representative  or nominee of an Acquiring  Person,  an
Adverse  Person  or of  any  such  Affiliate  or  Associate,  if  such  Person's
nomination  is  recommended  or  approved  by a  majority  of the  Disinterested
Directors.

                  (i)  "Distribution  Date"  shall have the  meaning  defined in
Section 3(a) hereof.

                  (j) "Exercise Price" shall have the meaning defined in Section
7(b) hereof.

                  (k) "Expiration  Date" and "Final  Expiration Date" shall have
the meanings defined in Section 7(a) hereof.

                  (l) "Fair Market Value" of any  securities  or other  property
shall be as determined in accordance with Section 11(d) hereof.

                  (m) "Person"  shall mean any  individual,  firm,  corporation,
partnership or other entity.

                  (n)  "Preferred  Stock"  shall mean  shares of Series A Junior
Participating  Cumulative  Preferred  Stock,  par value $1.00 per share,  of the
Company having the rights and  preferences  set forth in the form of Certificate
of Vote of Directors  Establishing a Series of a Class of Stock attached  hereto
as Exhibit A.

                  (o)  "Principal  Party"  shall  have the  meaning  defined  in
Section 13(b) hereof.

                  (p)  "Redemption  Price"  shall  have the  meaning  defined in
Section 23 hereof.

                  (q) "Section  11(a)(ii)  Event" shall mean any event described
in Section 11(a)(ii) hereof.

                  (r)  "Section  13 Event"  shall  mean any event  described  in
clauses (x), (y) or (z) of Section 13(a) hereof.

                  (s) "Stock  Acquisition Date" shall mean 5:00 p.m. Boston time
on the date of the  first  public  announcement  (which,  for  purposes  of this
definition shall include,  without limitation, a press release or a report filed
pursuant to Section 13(d) under the Exchange Act) by the Company or an Acquiring
Person that an Acquiring Person has become such.

                  (t) A  "Subsidiary"  of any Person shall mean any other Person
of which a majority  of the  voting  power of the voting  equity  securities  or
voting interests is owned,  directly or indirectly,  by such Person, or which is
otherwise controlled by such Person.

                  (u) "Triggering  Event" shall mean any Section 11(a)(ii) Event
or any Section 13 Event.

         Section 2. Appointment of Rights Agent. The Company hereby appoints the
Rights Agent to act as agent for the Company and the holders of the Rights (who,
in accordance with Section 3 hereof,  shall prior to the  Distribution  Date (as
hereinafter defined in Section 3(a)) also be the holders of the Common Stock) in
accordance  with the terms and  conditions  hereof,  and the Rights Agent hereby
accepts  such  appointment.  The  Company  may from  time to time  appoint  such
Co-Rights Agents as it may deem necessary or desirable. In the event the Company
appoints  one or more Co- Rights  Agents,  the  respective  duties of the Rights
Agent and any Co-Rights Agents shall be as the Company shall determine.

         Section 3.  Issue of Right Certificates.

                  (a) Until the  earlier  of (i) the  close of  business  on the
tenth day after the Stock  Acquisition  Date,  (ii) the close of business on the
tenth Business Day after the date of the commencement, by any Person, other than
an Exempt Person, of a tender or exchange offer if, upon  consummation  thereof,
such Person would be an Acquiring Person or (iii) the determination by the Board
of  Directors  of the  Company,  pursuant to the  criteria  set forth in Section
11(a)(ii)(B) hereof, that a Person is an Adverse Person (including any such date
which is after  the date of this  Agreement  and  prior to the  issuance  of the
Rights)  (the   earliest  of  such  dates  being  herein   referred  to  as  the
"Distribution  Date"),  (x)  the  Rights  will  be  evidenced  (subject  to  the
provisions  of  Section  3(b)  hereof)  by  certificates  for the  Common  Stock
registered  in the names of the holders of the Common Stock (which  certificates
for Common Stock shall be deemed also to be certificates  for Rights) and not by
separate  certificates,  and  (y)  the  Rights  will  be  transferable  only  in
connection  with the transfer of the underlying  shares of Common Stock. As soon
as practicable after the Company has notified the Rights Agent of the occurrence
of the Distribution  Date, the Rights Agent will send, by first-class,  insured,
postage  prepaid mail, to each record holder of the Common Stock as of the close
of business on the Distribution Date, at the address of such holder shown on the
records of the Company,  one or more certificates,  in substantially the form of
Exhibit B hereto (the "Right Certificates"), evidencing one Right for each share
of Common Stock so held. In the event that an adjustment in the number of Rights
per share of Common Stock has been made pursuant to Section  11(o)  hereof,  the
Company  shall make the  necessary  and  appropriate  rounding  adjustments  (in
accordance  with Section 14(a) hereof) at the time of  distribution of the Right
Certificates,  so that Right  Certificates  representing  only whole  numbers of
Rights are distributed and cash is paid in lieu of any fractional  Rights. As of
and after the close of business  on the  Distribution  Date,  the Rights will be
evidenced solely by such Right Certificates.

                  (b) Not later than ten days after the Record Date, the Company
will send a copy of a Summary  of Rights,  in  substantially  the form  attached
hereto as Exhibit C (the "Summary of Rights"),  by first-class,  postage prepaid
mail,  to each record  holder of the Common Stock as of the close of business on
the Record  Date,  at the  address of such  holder  shown on the  records of the
Company. With respect to certificates for the Common Stock outstanding as of the
Record Date, until the  Distribution  Date, the Rights will be evidenced by such
certificates  for the  Common  Stock  with or  without a copy of the  Summary of
Rights attached  thereto,  and the registered  holders of the Common Stock shall
also be the registered holders of the associated Rights.  Until the Distribution
Date (or earlier  redemption,  expiration  or  termination  of the Rights),  the
transfer of any of the  certificates  for the Common  Stock  outstanding  on the
Record  Date,  even  without a copy of the Summary of Rights  attached  thereto,
shall also  constitute  the  transfer of the Rights  associated  with the Common
Stock represented by such certificate.

                  (c)  Certificates for the Common Stock issued after the Record
Date, but prior to the earlier of the Distribution  Date or the Expiration Date,
shall be deemed also to be certificates for Rights, and shall bear the following
legend:

                           This  certificate  also  evidences  and  entitles the
                  holder hereof to certain  Rights as set forth in a Shareholder
                  Rights  Agreement  between  Perini  Corporation  and The First
                  National  Bank  of  Boston,  as  Rights  Agent,  dated  as  of
                  September  23, 1988,  as amended as of May , 1990 (the "Rights
                  Agreement"), the terms of which are hereby incorporated herein
                  by reference  and a copy of which is on file at the  principal
                  offices of Perini Corporation. Under certain circumstances, as
                  set  forth  in the  Rights  Agreement,  such  Rights  will  be
                  evidenced  by  separate  certificates  and will no  longer  be
                  evidenced by this certificate.  Perini  Corporation may redeem
                  the Rights at a redemption  price of $0.02 per Right,  subject
                  to adjustment, under the terms of the Rights Agreement. Perini
                  Corporation will mail to the holder of this certificate a copy
                  of the Rights Agreement,  as in effect on the date of mailing,
                  without  charge  promptly  after receipt of a written  request
                  therefor.  Under  certain  circumstances,  Rights issued to or
                  held by Acquiring  Persons,  Adverse Persons or any Affiliates
                  or Associates thereof (as defined in the Rights Agreement) and
                  any subsequent holder of such Rights may become null and void.

With respect to such  certificates  containing the foregoing  legend,  until the
earlier of the Distribution  Date or the Expiration Date, the Rights  associated
with the Common Stock  represented  by such  certificates  shall be evidenced by
such certificates alone, and the transfer of any of such certificates shall also
constitute  the  transfer  of  the  Rights  associated  with  the  Common  Stock
represented  by such  certificates.  In the event that the Company  purchases or
acquires  any  shares of Common  Stock  after the  Record  Date but prior to the
Distribution Date, any Rights associated with such Common Stock shall be deemed
cancelled  and retired so that the Company shall not be entitled to exercise any
Rights  associated  with  the  shares  of  Common  Stock  which  are  no  longer
outstanding.

         Section 4.  Form of Right Certificates.

                  (a) The  Right  Certificates  (and the  forms of  election  to
purchase  shares and of assignment and  certificate to be printed on the reverse
thereof)  shall  each be  substantially  in the form of Exhibit B hereto and may
have such marks of identification or designation and such legends,  summaries or
endorsements  printed thereon as the Company may deem appropriate and as are not
inconsistent  with the  provisions of this  Agreement,  or as may be required to
comply  with  any  applicable  law,  rule  or  regulation  or with  any  rule or
regulation  of any stock  exchange  on which the Rights may from time to time be
listed,  or to conform to usage.  Subject  to the  provisions  of Section 11 and
Section 22 hereof, the Right Certificates,  whenever distributed, shall be dated
as of the Record Date,  and on their face shall  entitle the holders  thereof to
purchase  such number of one  one-hundredths  of a share of  Preferred  Stock as
shall be set  forth  therein  at the  price set  forth  therein  (the  "Exercise
Price"),  but the number of such shares and the Exercise  Price shall be subject
to adjustment as provided herein.

                  (b) Any Right  Certificate  issued pursuant to Section 3(a) or
Section 22 hereof that represents Rights  beneficially owned by (i) an Acquiring
Person, an Adverse Person or any Associate or Affiliate of such a Person, (ii) a
transferee of an Acquiring Person or an Adverse Person (or of any such Associate
or Affiliate)  who becomes a transferee  after the  Acquiring  Person or Adverse
Person becomes such, or (iii) a transferee of an Acquiring  Person or an Adverse
Person (or of any such Associate or Affiliate) who becomes a transferee prior to
or  concurrently  with the Acquiring  Person or Adverse Person becoming such and
receives  such  Rights  pursuant  to either (A) a transfer  (whether  or not for
consideration)  from the Acquiring Person or Adverse Person to holders of equity
interests in such Acquiring  Person or Adverse Person or to any Person with whom
the Acquiring Person or Adverse Person has any continuing agreement, arrangement
or  understanding  regarding the transferred  Rights or (B) a transfer which the
Board of Directors of the Company has determined is part of a plan,  arrangement
or  understanding  which has as a primary  purpose  or effect the  avoidance  of
Section 7(e) hereof, and any Right Certificate issued pursuant to Section 6 or
Section 11 upon transfer, exchange, replacement or adjustment of any other Right
Certificate referred to in this sentence, shall contain the following legend:

                  The Rights  represented by this Right  Certificate are or were
                  beneficially  owned by a Person who was or became an Acquiring
                  Person,  an Adverse  Person or an Affiliate or an Associate of
                  an  Acquiring  Person or an Adverse  Person (as such terms are
                  defined in the Rights  Agreement).  This Right Certificate and
                  the Rights  represented  hereby may become null and void under
                  certain  circumstances  as  specified  in Section  7(e) of the
                  Rights Agreement.

The Company  shall give  notice to the Rights  Agent  promptly  after it becomes
aware of the existence and identity of any Acquiring Person or Adverse Person or
any Associate or Affiliate thereof.

         Section 5.  Countersignature and Registration.

                  (a) The Right  Certificates shall be executed on behalf of the
Company by its Chairman of the Board, its President or any Vice President and by
its  Treasurer  or any  Assistant  Treasurer,  either  manually or by  facsimile
signature,  and shall have  affixed  thereto the  Company's  seal or a facsimile
thereof  which  shall be  attested  by the Clerk or any  Assistant  Clerk of the
Company, either manually or by facsimile signature. The Right Certificates shall
be  manually  countersigned  by the Rights  Agent and shall not be valid for any
purpose  unless so  countersigned.  In case any officer of the Company who shall
have signed any of the Right  Certificates shall cease to be such officer of the
Company before countersignature by the Rights Agent and issuance and delivery by
the Company, such Right Certificates,  nevertheless, may be countersigned by the
Rights  Agent,  and issued and  delivered by the Company with the same force and
effect as though the person who signed such Right Certificates had not ceased to
be such  officer of the  Company;  and any Right  Certificates  may be signed on
behalf of the Company by any person who, at the actual date of the  execution of
such Right  Certificate,  shall be a proper  officer of the Company to sign such
Right  Certificate,  although  at the  date  of the  execution  of  this  Rights
Agreement any such person was not such an officer.

                  (b) Following  the  Distribution  Date,  the Rights Agent will
keep or cause to be kept, at one of its offices  designated  as the  appropriate
place for surrender of Right  Certificates upon exercise or transfer,  books for
registration and transfer of the Right Certificates issued hereunder. Such books
shall  show the names  and  addresses  of the  respective  holders  of the Right
Certificates,  the number of Rights  evidenced  on its face by each of the Right
Certificates and the date of each of the Right Certificates.

         Section  6.  Transfer,  Split Up,  Combination  and  Exchange  of Right
Certificates; Mutilated, Destroyed, Lost or Stolen Right Certificates.

                  (a) Subject to the  provisions of Section  4(b),  Section 7(e)
and  Section  14  hereof,  at any  time  after  the  close  of  business  on the
Distribution  Date,  and at or prior to the close of business on the  Expiration
Date,  any Right  Certificate  or  Certificates  may be  transferred,  split up,
combined or exchanged for another Right  Certificate or Certificates,  entitling
the registered holder to purchase a like number of one one-hundredths of a share
of Preferred  Stock (or  following a Triggering  Event,  Preferred  Stock,  cash
property, debt securities, common stock or any combination thereof) as the Right
Certificate or Certificates  surrendered  then entitled such holder to purchase.
Any registered  holder  desiring to transfer,  split up, combine or exchange any
Right  Certificate  shall make such  request in writing  delivered to the Rights
Agent,  and  shall  surrender  the  Right  Certificate  or  Certificates  to  be
transferred,  split up,  combined or exchanged,  with the form of assignment and
certificate  duly  executed,  at the  office  or  offices  of the  Rights  Agent
designated  for such purpose.  Neither the Rights Agent nor the Company shall be
obligated to take any action whatsoever with respect to the transfer of any such
surrendered  Right  Certificate until the registered holder shall have completed
and signed the  certificate  contained in the form of  assignment on the reverse
side of such Right Certificate and shall have provided such additional  evidence
of the  identity  of the  Beneficial  Owner  (or  former  Beneficial  Owner)  or
Affiliates  or  Associates  thereof as the  Company  shall  reasonably  request.
Thereupon  the Rights Agent  shall,  subject to Section  4(b),  Section 7(e) and
Section 14 hereof,  countersign  and  deliver to the Person  entitled  thereto a
Right  Certificate  or  Certificates,  as the case may be, as so requested.  The
Company may require payment of a sum sufficient to cover any tax or governmental
charge  that  may  be  imposed  in  connection  with  any  transfer,  split  up,
combination or exchange of Right Certificates.

                  (b)  Upon  receipt  by the  Company  and the  Rights  Agent of
evidence  reasonably  satisfactory  to them of the loss,  theft,  destruction or
mutilation of a Right  Certificate,  and, in case of loss, theft or destruction,
of indemnity or security  satisfactory to them, and reimbursement to the Company
and the Rights Agent of all reasonable  expenses  incidental  thereto,  and upon
surrender  to the Rights  Agent and  cancellation  of the Right  Certificate  if
mutilated,  the Company will execute and deliver a new Right Certificate of like
tenor to the Rights Agent for  countersignature  and delivery to the  registered
owner in lieu of the Right Certificate so lost, stolen, destroyed or mutilated.

         Section 7.  Exercise  of Rights;  Exercise  Price;  Expiration  Date of
Rights.

                  (a) Subject to Section 7(e) hereof,  the registered  holder of
any Right  Certificate  may exercise  the Rights  evidenced  thereby  (except as
otherwise  provided  herein)  in  whole  or  in  part  at  any  time  after  the
Distribution  Date upon  surrender  of the Right  Certificate,  with the form of
election to  purchase  and the  certificate  on the reverse  side  thereof  duly
executed,  to the Rights  Agent at the  office or  offices  of the Rights  Agent
designated  for such purpose,  together  with payment of the aggregate  Exercise
Price for the total number of one  one-hundredths  of a share of Preferred Stock
(or other securities, cash or other assets, as the case may be) as to which such
surrendered  Rights are then  exercised,  at or prior to the  earlier of (i) the
close of business on September  23, 1999 (the "Final  Expiration  Date") or (ii)
the time at which the Rights are  redeemed as provided in Section 23 hereof (the
earlier of (i) or (ii)  being  herein  referred  to as the  "Expiration  Date").
Except  as set  forth in  Section  7(e)  hereof  and  notwithstanding  any other
provision  of this  Agreement,  any  Person who prior to the  Distribution  Date
becomes a record holder of shares of Common Stock may exercise all of the rights
of a  registered  holder  of a Right  Certificate  with  respect  to the  Rights
associated with such shares of Common Stock in accordance with the provisions of
this Agreement,  as of the date such Person becomes a record holder of shares of
Common Stock.

                  (b) The Exercise Price for each one  one-hundredth  of a share
of  Preferred  Stock  pursuant to the  exercise of a Right  shall  initially  be
$100.00, shall be subject to adjustment from time to time as provided in Section
11 and Section  13(a)  hereof and shall be payable in lawful money of the United
States of America in accordance with Section 7(c) below.

                  (c)  Upon   receipt  of  a  Right   Certificate   representing
exercisable Rights, with the form of election to purchase and the certificate on
the reverse side thereof duly  executed,  accompanied by payment of the Exercise
Price for the  shares to be  purchased  and an  amount  equal to any  applicable
transfer tax (as determined by the Rights Agent) in cash, or by certified  check
or bank draft  payable to the order of the  Company,  the  Rights  Agent  shall,
subject to Section 20(k) hereof,  thereupon promptly (i)(A) requisition from any
transfer agent of Preferred Stock (or make available, if the Rights Agent is the
transfer agent therefor)  certificates for the number of one one-hundredths of a
share of Preferred  Stock to be  purchased  and the Company  hereby  irrevocably
authorizes its transfer  agent to comply with all such  requests,  or (B) if the
Company  shall have  elected to deposit the total  number of shares of Preferred
Stock issuable upon exercise of the Rights  hereunder  with a depositary  agent,
requisition  from the depositary  agent depositary  receipts  representing  such
number  of  one  one-hundredths  of a  share  of  Preferred  Stock  as are to be
purchased  (in  which  case  certificates  for the  shares  of  Preferred  Stock
represented  by such receipts  shall be deposited by the transfer agent with the
depositary  agent) and the Company  will direct the  depositary  agent to comply
with such  request,  (ii) when  appropriate,  requisition  from the  Company the
amount of cash, if any, to be paid in lieu of issuance of  fractional  shares in
accordance  with  Section  14  hereof,  (iii)  promptly  after  receipt  of such
certificates or depositary  receipts,  cause the same to be delivered to or upon
the order of the registered holder of such Right Certificate, registered in such
name or names as may be  designated  by such  holder and (iv) when  appropriate,
after receipt  promptly deliver such cash to or upon the order of the registered
holder of such Right Certificate.  In the event that the Company is obligated to
issue other  securities  (including  Common  Stock) of the Company,  pay cash or
distribute  other  property  pursuant to Section 11(a) hereof,  the Company will
make all  arrangements  necessary so that such other  securities,  cash or other
property  are  available  for  distribution  by the  Rights  Agent,  if and when
appropriate.

                  (d) In case the  registered  holder of any  Right  Certificate
shall  exercise  less  than  all  the  Rights  evidenced  thereby,  a new  Right
Certificate  evidencing  Rights  equivalent to the Rights remaining  unexercised
shall be issued by the Rights Agent and  delivered to the  registered  holder of
such  Right  Certificate  or to his  duly  authorized  assigns,  subject  to the
provisions of Section 14 hereof.

                  (e)   Notwithstanding   anything  in  this  Agreement  to  the
contrary,  from and after the first occurrence of a Section 11(a)(ii) Event, any
Rights  beneficially  owned by (i) an Acquiring Person, an Adverse Person or any
Associate or  Affiliate  of such a Person or (ii) a  transferee  of an Acquiring
Person or an Adverse  Person (or of any such Associate or Affiliate) who becomes
a transferee after the Acquiring Person becomes such or (iii) a transferee of an
Acquiring  Person or an Adverse  Person (or of any such  Associate or Affiliate)
who becomes a transferee  prior to or concurrently  with the Acquiring Person or
Adverse Person  becoming such and receives such Rights  pursuant to either (A) a
transfer (whether or not for consideration) from the Acquiring Person or Adverse
Person to holders of equity interests in such Acquiring Person or Adverse Person
or to any  Person  with whom the  Acquiring  Person or  Adverse  Person  has any
continuing  agreement,  arrangement or  understanding  regarding the transferred
Rights or (B) a  transfer  which  the  Board of  Directors  of the  Company  has
determined  is part of a  plan,  arrangement  or  understanding  which  has as a
primary purpose or effect the avoidance of this Section 7(e),  shall become null
and void without any further  action and no holder of such Rights shall have any
rights  whatsoever  with respect to such Rights,  whether under any provision of
this  Agreement or otherwise.  The Company shall use all  reasonable  efforts to
ensure that the  provisions  of this  Section  7(e) and Section  4(b) hereof are
complied with,  but shall have no liability to any holder of Right  Certificates
or other  Person  as a result of its  failure  to make any  determinations  with
respect  to an  Acquiring  Person,  an  Adverse  Person  or  any  Affiliates  or
Associates thereof or any transferee of any of them hereunder.

                  (f)   Notwithstanding   anything  in  this  Agreement  to  the
contrary,  neither  the  Rights  Agent nor the  Company  shall be  obligated  to
undertake  any action  with  respect to a  registered  holder of Rights upon the
occurrence of any purported  exercise as set forth in this Section 7 unless such
registered holder shall have (i) completed and signed the certificate  contained
in the form of election to purchase  set forth on the reverse  side of the Right
Certificate  surrendered  for such exercise,  and (ii) provided such  additional
evidence of the identity of the Beneficial Owner (or former Beneficial Owner) or
Affiliates or Associates thereof as the Company shall reasonably request.

         Section 8.  Cancellation  and  Destruction of Right  Certificates.  All
Right Certificates surrendered for the purpose of exercise,  transfer, split up,
combination  or  exchange  shall,  if  surrendered  to the Company or any of its
agents,  be delivered to the Rights Agent for cancellation or in cancelled form,
or, if surrendered  to the Rights Agent,  shall be cancelled by it, and no Right
Certificates  shall be issued in lieu thereof  except as expressly  permitted by
any of the provisions of this Agreement. The Company shall deliver to the Rights
Agent for cancellation and retirement,  and the Rights Agent shall so cancel and
retire,  any other  Right  Certificate  purchased  or  acquired  by the  Company
otherwise  than upon the exercise  thereof.  The Rights Agent shall  deliver all
cancelled Right Certificates to the Company, or shall, at the written request of
the Company,  destroy such cancelled Right Certificates,  and in such case shall
deliver a certificate of destruction thereof to the Company.

         Section 9.  Reservation and Availability of Preferred Stock.

                  (a) The Company  covenants and agrees that it will cause to be
reserved  and kept  available  out of its  authorized  and  unissued  shares  of
Preferred  Stock or any authorized and issued shares of Preferred  Stock held in
its treasury, the number of shares of Preferred Stock that will be sufficient to
permit the exercise in full of all outstanding and exercisable Rights.

                  (b) The Company shall use its best efforts to cause,  from and
after such time as the Rights become exercisable,  all shares of Preferred Stock
issued or reserved for issuance to be listed,  upon official notice of issuance,
upon the principal national securities  exchange,  if any, upon which the Common
Stock is listed or, if the  principal  market for the Common Stock is not on any
national  securities  exchange,  to be eligible  for  quotation  on the National
Association of Securities  Dealers Automated  Quotation System ("NASDAQ") or any
successor thereto or other comparable quotation system.

                  (c) The  Company  shall use its best  efforts to (i) file,  as
soon as  practicable  following  the  earliest  date after the  occurrence  of a
Section  11(a)(ii)  Event as of which the  consideration  to be delivered by the
Company  upon  exercise of the Rights has been  determined  in  accordance  with
Section  11(a)(iii)  hereof,  or as  soon  as  required  by  law  following  the
Distribution  Date,  as the case  may be, a  registration  statement  under  the
Securities Act of 1933, as amended (the "Securities  Act"),  with respect to the
securities  purchasable upon exercise of the Rights on an appropriate form, (ii)
cause such  registration  statement to become  effective as soon as  practicable
after  such  filing  and  (iii)  cause  such  registration  statement  to remain
effective  (with a prospectus  that at all times meets the  requirements  of the
Securities  Act) until the earlier of (A) the date as of which the Rights are no
longer exercisable for such securities, and (B) the Expiration Date. The Company
will also take such action as may be  appropriate  under,  and which will ensure
compliance  with,  the  securities  or "blue sky" laws of the various  states in
connection with the  exercisability  of the Rights.  The Company may temporarily
suspend  for a period of time not to exceed  ninety (90) days after the date set
forth  in  clause  (i)  of  the  first   sentence  of  this  Section  9(c),  the
exercisability  of the  Rights in order to  prepare  and file such  registration
statement and permit it to become effective.  Upon such suspension,  the Company
shall issue a public announcement  stating that the exercisability of the Rights
has been temporarily suspended, as well as a public announcement at such time as
the  suspension is no longer in effect.  Notwithstanding  any such  provision of
this  Agreement  to the  contrary,  the Rights shall not be  exercisable  in any
jurisdiction unless the requisite  qualification in such jurisdiction shall have
been obtained.

                  (d) The  Company  covenants  and agrees  that it will take all
such action as may be  necessary  to ensure that all shares of  Preferred  Stock
delivered  upon  exercise  of  Rights  shall,  at the  time of  delivery  of the
certificates for such shares (subject to payment of the Exercise Price), be duly
and validly authorized and issued and fully paid and nonassessable.

                  (e) The Company further  covenants and agrees that it will pay
when due and payable any and all  federal and state  transfer  taxes and charges
which may be  payable  in  respect  of the  issuance  or  delivery  of the Right
Certificates  or of any  certificates  for  shares of  Preferred  Stock upon the
exercise  of Rights.  The  Company  shall not,  however,  be required to pay any
transfer  tax which may be payable in respect of any  transfer  or  delivery  of
Right  Certificates  to a person  other than,  or in respect of the  issuance or
delivery of  securities in a name other than that of, the  registered  holder of
the Right Certificates evidencing Rights surrendered for exercise or to issue or
deliver  any  certificates  for  securities  in a name  other  than  that of the
registered holder upon the exercise of any Rights until such tax shall have been
paid (any such tax being payable by the holder of such Right  Certificate at the
time  of  surrender)  or  until  it  has  been   established  to  the  Company's
satisfaction that no such tax is due.

         Section 10.  Preferred Stock Record Date. Each Person in whose name any
certificate  for Preferred Stock is issued upon the exercise of Rights shall for
all  purposes  be deemed to have  become  the  holder of record of the shares of
Preferred Stock represented thereby on, and such certificate shall be dated, the
date  upon  which  the  Right  Certificate   evidencing  such  Rights  was  duly
surrendered  and  payment of the  Exercise  Price (and any  applicable  transfer
taxes)  was made;  provided,  however,  that if the date of such  surrender  and
payment is a date upon which the Preferred  Stock  transfer books of the Company
are closed, such person shall be deemed to have become the record holder of such
shares on, and such certificate shall be dated, the next succeeding Business Day
on which the Preferred  Stock transfer  books of the Company are open.  Prior to
the exercise of the Right evidenced  thereby,  the holder of a Right Certificate
shall not be entitled to any rights of a shareholder of the Company with respect
to  shares  for  which  the  Rights  shall be  exercisable,  including,  without
limitation, the right to vote, to receive dividends or other distributions or to
exercise any preemptive  rights, and shall not be entitled to receive any notice
of any proceedings of the Company, except as provided herein.

         Section 11. Adjustment of Exercise Price,  Number and Kind of Shares or
Number of Rights.  The Exercise Price,  the number and kind of shares covered by
each Right and the number of Rights  outstanding  are subject to adjustment from
time to time as provided in this Section 11.

                  (a)(i) In the event the  Company  shall at any time  after the
date of this Agreement (A) declare a dividend on the Preferred  Stock payable in
shares of Preferred  Stock,  (B) subdivide the outstanding  Preferred Stock, (C)
combine the  outstanding  Preferred Stock into a smaller number of shares or (D)
issue any shares of its capital  stock in a  reclassification  of the  Preferred
Stock (including any such reclassification in connection with a consolidation or
merger in which the Company is the continuing or surviving corporation),  except
as  otherwise  provided in this  Section  11(a) and  Section  7(e)  hereof,  the
Exercise  Price in effect at the time of the record date for such dividend or of
the effective date of such subdivision, combination or reclassification, and the
number  and kind of shares of capital  stock  issuable  on such  date,  shall be
proportionately  adjusted so that the holder of any Right  exercised  after such
time shall be  entitled to receive  the  aggregate  number and kind of shares of
capital stock which, if such Right had been exercised  immediately prior to such
date and at a time when the Preferred  Stock  transfer books of the Company were
open,  he would have owned upon such  exercise  and been  entitled to receive by
virtue of such dividend,  subdivision,  combination or  reclassification.  If an
event occurs which would require an adjustment  under both Section  11(a)(i) and
Section 11(a)(ii) hereof,  the adjustment  provided for in this Section 11(a)(i)
shall be in  addition  to, and shall be made prior to, any  adjustment  required
pursuant to Section 11(a)(ii) hereof.

             (ii) In the event

                  (A) any Person,  alone or  together  with its  Affiliates  and
Associates, shall become an Acquiring Person; or

                  (B) the Board of  Directors of the Company  shall  declare any
Person to be an Adverse  Person,  after (x) a  determination  that such  Person,
alone or together with its Affiliates and Associates,  has become the Beneficial
Owner  of 10% or  more of the  outstanding  shares  of  Common  Stock  and (y) a
determination  by  the  Board  of  Directors,   after  reasonable   inquiry  and
investigation,  including such  consultation,  if any, with such persons as such
directors shall deem  appropriate,  that (a) such  Beneficial  Ownership by such
Person is intended  to cause,  is  reasonably  likely to cause or will cause the
Company to repurchase the Common Stock  beneficially  owned by such Person or to
cause  pressure  on the Company to take  action or enter into a  transaction  or
series of transactions which would provide such Person with short-term financial
gain under circumstances  where the Board of Directors  determines that the best
long-term interests of the Company and its shareholders, but for the actions and
possible  actions of such  Person,  would not be served by taking such action or
entering into such  transactions  or series of  transactions at that time or (b)
such  Beneficial  Ownership is causing or reasonably  likely to cause a material
adverse impact (including,  but not limited to, impairment of relationships with
customers or  impairment of the  Company's  ability to maintain its  competitive
position) on the business or prospects of the Company;  provided,  however, that
the Board of  Directors of the Company may not declare a Person to be an Adverse
Person if, prior to the time that such Person acquired 10% or more of the shares
of Common Stock then outstanding, such Person provided to the Board of Directors
in writing a statement of such  Person's  purpose and  intentions  in connection
with  the  proposed  acquisition  of  Common  Stock,  together  with  any  other
information  reasonably requested of such Person by the Board of Directors,  and
the Board of  Directors,  based on such  statement  and  reasonable  inquiry and
investigation,  including  such  consultation,  if any, with such persons as the
directors shall deem appropriate,  determines to notify and notifies such Person
in  writing  that it will not  declare  such  Person  to be an  Adverse  Person;
provided  further,  that the Board of Directors may  expressly  condition in any
manner a  determination  not to  declare  a Person  an  Adverse  Person  on such
conditions as the Board of Directors may select,  including without  limitation,
such Person's not acquiring more than a specified amount of stock and/or on such
Person's  not taking  actions  inconsistent  with the  purposes  and  intentions
disclosed by such Person in the statement provided to the Board of Directors. No
delay or failure by the Board of  Directors to declare a Person to be an Adverse
Person  shall in any way  waive or  otherwise  affect  the power of the Board of
Directors subsequently to declare a Person to be an Adverse Person. In the event
that the  Board of  Directors  should  at any time  determine,  upon  reasonable
inquiry  and  investigation,  including  consultation  with such  persons as the
directors shall deem appropriate,  that such Person has not met or complied with
any condition specified by the Board of Directors, the Board of Directors may at
any time thereafter  declare such Person to be an Adverse Person pursuant to the
provisions of this Section 11(a)(ii)(B);

then,  and in each such case,  promptly  following any such  occurrence,  proper
provision  shall be made so that each  holder of a Right,  except as provided in
Section 7(e) hereof,  shall  thereafter  have a right to receive,  upon exercise
thereof at the then current  Exercise Price in accordance with the terms of this
Agreement,  such  number of shares of  Preferred  Stock of the  Company as shall
equal the result obtained by (x) multiplying the then current  Exercise Price by
the then number of one  one-hundredths of a share of Preferred Stock for which a
Right was  exercisable  immediately  prior to the first  occurrence of a Section
11(a)(ii)  Event and  dividing  that product by (y) 50% of the Fair Market Value
per one one-hundredth of a share of the Preferred Stock (determined  pursuant to
Section  11(d)) on the date of the  occurrence  of any one of the events  listed
above in this Section 11(a)(ii); provided, however, that if the transaction that
would  otherwise  give rise to the  foregoing  adjustment is also subject to the
provisions  of Section 13 hereof,  then only the  provisions of Section 13 shall
apply and no adjustment shall be made pursuant to this Section 11(a)(ii).

            (iii) In the  event  that  there  shall not be  sufficient  Treasury
shares or  authorized  but  unissued  shares of  Preferred  Stock to permit  the
exercise  in full  of the  Rights  in  accordance  with  the  foregoing  Section
11(a)(ii),  the Company  shall take all action as may be  necessary to authorize
and reserve for issuance such number of additional  shares of Preferred Stock as
may from time to time be required to be issued upon the  exercise in full of all
Rights  outstanding  and,  if  necessary,  shall use its best  efforts to obtain
shareholder  approval thereof.  Notwithstanding the foregoing provisions of this
Section  11(a)(iii),  in lieu of issuing shares of Preferred Stock in accordance
with Section 11(a)(ii) hereof, if a majority of the Disinterested Directors then
in office  determines  that such action is necessary or  appropriate  and is not
contrary to the interests of the holders of the Rights,  they may elect to cause
the Company to pay, and if sufficient shares of Preferred Stock cannot be issued
for such purpose in accordance  with the  provisions  hereof,  the Company shall
issue or pay upon the exercise of the Rights, cash,  property,  debt securities,
shares of Preferred Stock or Common Stock, or any combination thereof, having an
aggregate  Fair Market  Value  equal to the Fair  Market  Value of the shares of
Preferred  Stock which  otherwise  would have been issuable  pursuant to Section
11(a)(ii). Any such election by a majority of the Disinterested Directors of the
Company must be made and publicly  announced within 30 days of the date on which
any Section 11(a)(ii) Event first occurs following the Stock Acquisition Date.

                  (b) If the Company shall fix a record date for the issuance of
rights,  options or warrants to all holders of Preferred  Stock  entitling  them
(for a period  expiring  within 45  calendar  days  after such  record  date) to
subscribe for or purchase Preferred Stock (or securities having the same rights,
privileges and  preferences as the shares of Preferred Stock  ("preferred  stock
equivalents")) or securities convertible into Preferred Stock or preferred stock
equivalents  at a price per share of  Preferred  Stock or per share of preferred
stock  equivalents  (or  having a  conversion  price per  share,  if a  security
convertible into Preferred Stock or preferred stock  equivalents)  less than the
Fair Market Value (as determined  pursuant to Section 11(d) hereof) per share of
Preferred  Stock on such record date,  the Exercise  Price to be in effect after
such record date shall be determined by multiplying the Exercise Price in effect
immediately  prior to such  record date by a fraction,  the  numerator  of which
shall be the number of shares of  Preferred  Stock  outstanding  on such  record
date, plus the number of shares of Preferred Stock which the aggregate  offering
price of the total  number of shares of  Preferred  Stock to be offered (and the
aggregate  initial  conversion  price  of the  convertible  securities  so to be
offered) would  purchase at such Fair Market Value and the  denominator of which
shall be the number of shares of  Preferred  Stock  outstanding  on such  record
date,  plus the number of  additional  shares of Preferred  Stock and  preferred
stock  equivalents to be offered for subscription or purchase (or into which the
convertible securities so to be offered are initially convertible). In case such
subscription  price may be paid in a consideration part or all of which shall be
in a form  other than cash,  the value of such  consideration  shall be the Fair
Market Value thereof determined in accordance with Section 11(d) hereof.  Shares
of Preferred  Stock owned by or held for the account of the Company shall not be
deemed  outstanding for the purpose of any such  computation.  Such  adjustments
shall be made  successively  whenever  such a record  date is fixed;  and in the
event that such rights or warrants are not so issued,  the Exercise  Price shall
be  adjusted  to be the  Exercise  Price  which  would then be in effect if such
record date had not been fixed.

                  (c) If the Company shall fix a record date for the making of a
distribution to all holders of Preferred Stock (including any such  distribution
made in connection  with a  consolidation  or merger in which the Company is the
continuing corporation) of evidences of indebtedness, cash (other than a regular
periodic cash dividend out of the earnings or retained earnings of the Company),
assets  (other than a dividend  payable in Preferred  Stock,  but  including any
dividend payable in stock other than Preferred Stock) or subscription  rights or
warrants  (excluding those referred to in Section 11(b)),  the Exercise Price to
be in effect  after such  record date shall be  determined  by  multiplying  the
Exercise  Price in effect  immediately  prior to such record date by a fraction,
the numerator of which shall be the Fair Market Value (as determined pursuant to
Section 11(d)  hereof) per one  one-hundredth  of a share of Preferred  Stock on
such record date, less the Fair Market Value (as determined  pursuant to Section
11(d) hereof) of the portion of the cash, assets or evidences of indebtedness so
to be  distributed or of such  convertible  securities,  subscription  rights or
warrants  applicable to one  one-hundredth of a share of Preferred Stock and the
denominator of which shall be the Fair Market Value (as  determined  pursuant to
Section 11(d) hereof) per one  one-hundredth of a share of Preferred Stock. Such
adjustments shall be made successively whenever such a record date is fixed; and
in the event that such  distribution  is not so made,  the Exercise  Price shall
again be  adjusted  to be the  Exercise  Price  which would be in effect if such
record date had not been fixed.

                  (d) For the purpose of this Agreement, the "Fair Market Value"
of any share of Preferred Stock, Common Stock or any other stock or any Right or
other  security or any other  property  shall be  determined as provided in this
Section 11(d).

                  (i) In the case of a publicly-traded  stock or other security,
the Fair Market Value on any date shall be deemed to be the average of the daily
closing  prices per share of such stock or per unit of such other  security  for
the  30  consecutive  Trading  Days  (as  such  term  is  hereinafter   defined)
immediately prior to such date,  provided,  however,  that in the event that the
Fair Market Value per share of any share of stock is determined  during a period
following  the  announcement  by the issuer of such  stock of (x) a dividend  or
distribution  on such  stock  payable  in  shares  of such  stock or  securities
convertible  into shares of such stock or (y) any  subdivision,  combination  or
reclassification  of such stock,  and prior to the  expiration of the 30 Trading
Day period after the ex-dividend date for such dividend or distribution,  or the
record date for such subdivision, combination or reclassification,  then, and in
each such case,  the Fair Market  Value shall be properly  adjusted to take into
account  ex-dividend  trading.  The closing price for each day shall be the last
sale price,  regular  way, or, in case no such sale takes place on such day, the
average of the  closing  bid and asked  prices,  regular  way, in either case as
reported in the principal consolidated transaction reporting system with respect
to securities  listed or admitted to trading on the New York Stock  Exchange or,
if the  securities  are not listed or  admitted to trading on the New York Stock
Exchange, as reported in the principal consolidated transaction reporting system
with respect to securities listed on the principal national  securities exchange
on which such  security is listed or  admitted to trading;  or, if not listed or
admitted to trading on any national securities  exchange,  the last quoted price
(or,  if not so quoted,  the  average of the last  quoted high bid and low asked
prices) in the  over-the-counter  market,  as  reported  by NASDAQ or such other
system then in use; or, if on any such date no bids for such security are quoted
by any such  organization,  the average of the  closing bid and asked  prices as
furnished  by a  professional  market  maker  making a market  in such  security
selected by the Board of Directors of the Company. If on any such date no market
maker is  making a  market  in such  security,  the  Fair  Market  Value of such
security on such date shall be determined  reasonably and with utmost good faith
to the  holders  of the  Rights  by  the  Board  of  Directors  of the  Company,
including,  if at the time of such determination there is an Acquiring Person or
an Adverse Person, a majority of the Disinterested  Directors then in office, or
if there are no Disinterested  Directors,  by a nationally recognized investment
banking firm selected by the Board of Directors,  which  determination  shall be
described in a statement filed with the Rights Agent and shall be binding on the
Rights Agent and the holders of the Rights.  The term "Trading Day" shall mean a
day on which the principal national  securities  exchange on which such security
is listed or admitted to trading is open for the  transaction of business or, if
such  security is not listed or admitted to trading on any  national  securities
exchange, a Business Day.

                  (ii) If a security  is not  publicly  held or not so listed or
traded,  "Fair Market Value" shall mean the fair value per share of stock or per
other unit of such security, determined reasonably and with utmost good faith to
the holders of the Rights by the Board of Directors  of the Company,  including,
if at the time of such determination  there is an Acquiring Person or an Adverse
Person, a majority of the  Disinterested  Directors then in office,  or if there
are no Disinterested  Directors,  by a nationally  recognized investment banking
firm selected by the Board of Directors,  which determination shall be described
in a  statement  filed with the Rights  Agent and shall be binding on the Rights
Agent and the holders of the Rights; provided, however, that for the purposes of
making any adjustment  provided for by Section 11(a)(ii) hereof, the Fair Market
Value of a share of  Preferred  Stock  shall not be less than the product of the
then Fair Market  Value of a share of Common Stock  multiplied  by the higher of
the then Dividend  Multiple or Vote Multiple  applicable to the Preferred  Stock
(as defined in the Certificate of Vote of Directors  establishing  the Preferred
Stock  attached as Exhibit A hereto) and shall not exceed 105% of the product of
the then Fair Market Value of a share of Common Stock  multiplied  by the higher
of the then  Dividend  Multiple or Vote  Multiple  applicable  to the  Preferred
Stock.

                  (iii) In the case of property other than securities,  the Fair
Market Value thereof shall be determined  reasonably  and with utmost good faith
to the holders of Rights by the Board of Directors of the Company, including, if
at the time of such  determination  there is an Acquiring  Person, a majority of
the  Disinterested  Directors then in office,  or if there are no  Disinterested
Directors,  by a nationally  recognized  investment banking firm selected by the
Board of Directors,  which determination shall be described in a statement filed
with the Rights Agent and shall be binding upon the Rights Agent and the holders
of the Rights.

                  (e)  Anything  herein  to  the  contrary  notwithstanding,  no
adjustment in the Exercise Price shall be required unless such adjustment  would
require an increase or decrease of at least 1% in the Exercise Price;  provided,
however,  that any  adjustments  which by reason of this  Section  11(e) are not
required  to be made shall be  carried  forward  and taken  into  account in any
subsequent  adjustment.  All calculations under this Section 11 shall be made to
the nearest cent or to the nearest  ten-thousandth of a share of Common Stock or
one-millionth of a share of Preferred Stock, as the case may be. Notwithstanding
the first  sentence  of this  Section  11(e),  any  adjustment  required by this
Section 11 shall be made no later  than the  earlier of (i) three (3) years from
the  date  of the  transaction  which  mandates  such  adjustment  or  (ii)  the
Expiration Date.

                  (f) If as a result of any  provision of Section  11(a) hereof,
the holder of any Right  thereafter  exercised  shall become entitled to receive
any  shares  of  capital  stock  of the  Company  other  than  Preferred  Stock,
thereafter  the number of such other shares so  receivable  upon exercise of any
Right shall be subject to adjustment  from time to time in a manner and on terms
as nearly  equivalent  as  practicable  to the  provisions  with  respect to the
Preferred Stock  contained in Section 11(a),  (b), (c), (e), (g) through (k) and
(m),  inclusive,  and the provisions of Sections 7, 9, 10, 13 and 14 hereof with
respect  to the  Preferred  Stock  shall  apply on like  terms to any such other
shares.

                  (g) All Rights originally issued by the Company  subsequent to
any adjustment  made to the Exercise Price hereunder shall evidence the right to
purchase,  at the adjusted Exercise Price, the number of one one-hundredths of a
share of Preferred Stock  purchasable  from time to time hereunder upon exercise
of the Rights, all subject to further adjustment as provided herein.

                  (h) Unless the Company  shall have  exercised  its election as
provided in Section  11(i),  upon each  adjustment  of the  Exercise  Price as a
result of the calculations made in Section 11(b) and (c), each Right outstanding
immediately prior to the making of such adjustment shall thereafter evidence the
right  to  purchase,  at  the  adjusted  Exercise  Price,  that  number  of  one
one-hundredths  of a  share  of  Preferred  Stock  (calculated  to  the  nearest
one-millionth)  obtained by (i) multiplying (x) the number of one one-hundredths
of a share of Preferred  Stock for which a Right may be exercisable  immediately
prior to this adjustment by (y) the Exercise Price in effect  immediately  prior
to such  adjustment  of the  Exercise  Price and (ii)  dividing  the  product so
obtained by the Exercise Price in effect  immediately  after such  adjustment of
the Exercise Price.

                  (i)  The  Company  may  elect  on or  after  the  date  of any
adjustment of the Exercise Price to adjust the number of Rights, in substitution
for any adjustment in the number of shares of Preferred Stock  purchasable  upon
the exercise of a Right. Each of the Rights  outstanding after the adjustment in
the number of Rights shall be exercisable  for the number of one  one-hundredths
of a share of  Preferred  Stock for which a Right  was  exercisable  immediately
prior to such adjustment.  Each Right held of record prior to such adjustment of
the number of Rights  shall  become  that  number of Rights  (calculated  to the
nearest one ten-  thousandth)  obtained by dividing the Exercise Price in effect
immediately  prior to adjustment of the Exercise  Price by the Exercise Price in
effect  immediately  after  adjustment of the Exercise Price.  The Company shall
make a public  announcement  of its  election  to adjust  the  number of Rights,
indicating  the record date for the  adjustment,  and, if known at the time, the
amount of the  adjustment to be made.  This record date may be the date on which
the  Exercise  Price  is  adjusted  or any day  thereafter,  but,  if the  Right
Certificates  have been  issued,  shall be at least ten (10) days later than the
date of the public  announcement.  If Right Certificates have been issued,  upon
each  adjustment  of the number of Rights  pursuant to this Section  11(i),  the
Company shall, as promptly as practicable, cause to be distributed to holders of
record of Right Certificates on such record date Right Certificates  evidencing,
subject to Section 14 hereof,  the additional Rights to which such holders shall
be entitled as a result of such  adjustment,  or, at the option of the  Company,
shall cause to be  distributed  to such  holders of record in  substitution  and
replacement for the Right Certificates held by such holders prior to the date of
adjustment,  and upon surrender thereof,  if required by the Company,  new Right
Certificates  evidencing  all the Rights to which such holders shall be entitled
after such adjustment.  Right Certificates so to be distributed shall be issued,
executed and  countersigned  in the manner provided for herein (and may bear, at
the option of the Company,  the adjusted Exercise Price) and shall be registered
in the names of the holders of record of Right  Certificates  on the record date
specified in the public announcement.

                  (j)  Irrespective  of any adjustment or change in the Exercise
Price or the number of one one-hundredths of a share of Preferred Stock issuable
upon  the  exercise  of the  Rights,  the  Right  Certificates  theretofore  and
thereafter  issued may continue to express the Exercise  Price per share and the
number of shares which were expressed in the initial Right  Certificates  issued
hereunder.

                  (k) Before  taking any action that would  cause an  adjustment
reducing the Exercise  Price below the then stated value,  if any, of the number
of one  one-hundredths  of a share of Preferred  Stock issuable upon exercise of
the  Rights,  the  Company  shall take any  corporate  action  which may, in the
opinion of its  counsel,  be necessary in order that the Company may validly and
legally  issue fully paid and  nonassessable  shares of Preferred  Stock at such
adjusted Exercise Price.

                  (l) In any case in which this Section 11 shall require that an
adjustment  in the  Exercise  Price be made  effective as of a record date for a
specified  event,  the Company may elect to defer until the  occurrence  of such
event the  issuing to the holder of any Right  exercised  after such record date
the number of one  one-hundredths of a share of Preferred Stock or other capital
stock or securities of the Company, if any, issuable upon such exercise over and
above the number of one  one-hundredths  of a share of Preferred Stock and other
capital stock or securities of the Company,  if any, issuable upon such exercise
on the basis of the Exercise Price in effect prior to such adjustment; provided,
however,  that the  Company  shall  deliver  to such  holder a due bill or other
appropriate instrument evidencing such holder's right to receive such additional
shares upon the occurrence of the event requiring such adjustment.

                  (m)   Anything   in   this   Section   11  to   the   contrary
notwithstanding,  the Company  shall be entitled to make such  reductions in the
Exercise  Price,  in addition to those  adjustments  expressly  required by this
Section 11, as and to the extent that it in its sole discretion  shall determine
to be advisable in order that any  consolidation or subdivision of the Preferred
Stock,  issuance  wholly for cash of any shares of Preferred  Stock at less than
the Fair Market Value,  issuance wholly for cash of shares of Preferred Stock or
securities  which by their terms are convertible into or exchangeable for shares
of Preferred Stock,  stock dividends or issuance of rights,  options or warrants
referred to  hereinabove  in this Section 11,  hereafter  made by the Company to
holders of its Preferred Stock, shall not be taxable to such shareholders.

                  (n) The Company covenants and agrees that it shall not, at any
time after the Distribution Date, (i) consolidate with, (ii) merge with or into,
or (iii) sell or transfer (or permit any Subsidiary to sell or transfer), in one
transaction  or a series  of  related  transactions,  assets  or  earning  power
aggregating  50% or more of the assets or earning  power of the  Company and its
Subsidiaries taken as a whole, to any other Person or Persons if (x) at the time
of or immediately after such consolidation, merger or sale there are any rights,
warrants or other  instruments  outstanding  or  agreements or  arrangements  in
effect which would  substantially  diminish or otherwise  eliminate the benefits
intended to be afforded by the Rights, or (y) prior to,  simultaneously  with or
immediately  after  such  consolidation,  merger or sale the  shareholders  of a
Person who  constitutes,  or would  constitute,  the  "Principal  Party" for the
purposes of Section  13(a) hereof shall have received a  distribution  of Rights
previously  owned by such Person or any of its  Affiliates and  Associates.  The
Company further  covenants and agrees that after the  Distribution  Date it will
not, except as permitted by Section 23 or Section 27 hereof, take (or permit any
Subsidiary  to take)  any  action  if at the  time  such  action  is taken it is
reasonably foreseeable that such action will substantially diminish or otherwise
eliminate the benefits intended to be afforded by the Rights.

                  (o) In the event the Company  shall at any time after the date
of this Agreement and prior to the  Distribution  Date (i) declare a dividend on
the outstanding  Common Stock payable in shares of Common Stock,  (ii) subdivide
the outstanding  Common Stock, (iii) combine the outstanding Common Stock into a
smaller  number of shares or (iv)  issue any  shares of its  capital  stock in a
reclassification   of  the  outstanding  Common  Stock,  the  number  of  Rights
associated with each share of Common Stock shall be proportionately  adjusted so
that the number of Rights thereafter  associated with each share of Common Stock
following  any such event shall equal the result  obtained  by  multiplying  the
number of Rights associated with each share of Common Stock immediately prior to
such event by a fraction,  the  numerator  of which shall be the total number of
shares of Common Stock  outstanding  immediately  prior to the occurrence of any
such event listed in clauses (i), (ii),  (iii) or (iv) above and the denominator
of which  shall be the  total  number of  shares  of  Common  Stock  outstanding
immediately  following the occurrence of such event listed in clauses (i), (ii),
(iii) or (iv) above.

                  (p) The exercise of Rights under Section  11(a)(ii) shall only
result in the loss of rights under Section  11(a)(ii) to the extent so exercised
and shall not otherwise affect the rights of holders of Right Certificates under
this Rights Agreement,  including rights to purchase securities of the Principal
Party  following a Section 13 Event which has occurred or may thereafter  occur,
as set forth in Section 13 hereof.  Upon exercise of a Right  Certificate  under
Section  11(a)(ii),  the Rights Agent shall return such Right  Certificate  duly
marked to indicate that such exercise has occurred.

         Section 12. Certificate of Adjusted Exercise Price or Number of Shares.
Whenever an adjustment is made as provided in Section 11,  Section 13 or Section
23(d) hereof, the Company shall (a) promptly prepare a certificate setting forth
such  adjustment  and a  brief  statement  of  the  facts  accounting  for  such
adjustment, (b) promptly file with the Rights Agent and with each transfer agent
for the Preferred Stock and the Common Stock a copy of such  certificate and (c)
mail a brief summary thereof to each holder of a Right Certificate in accordance
with Section 26 hereof.  The Rights Agent shall be fully protected in relying on
any such  certificate and on any adjustment  contained  therein and shall not be
deemed to have knowledge of any such  adjustment  unless and until it shall have
received such certificate.

         Section  13.  Consolidation,  Merger or Sale or  Transfer  of Assets or
Earning Power.

                  (a) In the event that,  following the Stock  Acquisition Date,
directly or indirectly,  (x) the Company shall  consolidate  with, or merge with
and into,  any  other  Person  (other  than a  Subsidiary  of the  Company  in a
transaction  which is not prohibited by Section 11(n)  hereof),  and the Company
shall not be the continuing or surviving  corporation of such  consolidation  or
merger,  (y) any Person (other than a Subsidiary of the Company in a transaction
which is not  prohibited by Section 11(n)  hereof)  shall  consolidate  with the
Company,  or  merge  with  and into the  Company  and the  Company  shall be the
continuing or surviving  corporation of such merger and, in connection with such
merger,  all or part of the  shares of Common  Stock  shall be  changed  into or
exchanged for stock or other securities of any other Person or cash or any other
property,  or (z) the Company shall sell, mortgage or otherwise transfer (or one
or more of its Subsidiaries shall sell, mortgage or otherwise transfer),  in one
transaction  or a series  of  related  transactions,  assets  or  earning  power
aggregating  50% or more of the assets or earning  power of the  Company and its
Subsidiaries  (taken as a whole) to any other Person or Persons  (other than the
Company or any  Subsidiary of the Company in one or more  transactions,  each of
which is not prohibited by Section 11(n)  hereof),  then, and in each such case,
proper  provision  shall be made so that: (i) each holder of a Right,  except as
provided  in Section  7(e)  hereof,  shall have the right to  receive,  upon the
exercise thereof at the then current Exercise Price in accordance with the terms
of this Agreement,  such number of validly authorized and issued, fully paid and
nonassessable shares of freely tradeable Common Stock of the Principal Party (as
hereinafter defined in Section 13(b)), free and clear of rights of call or first
refusal,  liens,  encumbrances or other adverse claims, as shall be equal to the
result obtained by (1) multiplying  the number of such one  one-hundredths  of a
share  for  which  a  Right  was  exercisable  immediately  prior  to the  first
occurrence  of a  Section  11(a)(ii)  Event)  by the  Exercise  Price in  effect
immediately prior to such first occurrence, and dividing that product by (2) 50%
of the Fair Market Value (determined pursuant to Section 11(d) hereof) per share
of the Common Stock of such Principal  Party on the date of consummation of such
consolidation,  merger,  sale or  transfer;  (ii)  such  Principal  Party  shall
thereafter  be liable for, and shall  assume,  by virtue of such  consolidation,
merger, sale or transfer, all the obligations and duties of the Company pursuant
to this Agreement;  (iii) the term "Company" shall thereafter be deemed to refer
to such Principal Party, it being  specifically  intended that the provisions of
Section 11 hereof shall apply to such Principal  Party;  and (iv) such Principal
Party shall take such steps (including, but not limited to, the reservation of a
sufficient  number of  shares of its  Common  Stock to  permit  exercise  of all
outstanding  Rights in accordance  with this Section  13(a)) in connection  with
such consummation as may be necessary to assure that the provisions hereof shall
thereafter be  applicable,  as nearly as  reasonably  may be, in relation to its
shares of Common Stock thereafter deliverable upon the exercise of the Rights.

                  (b)      "Principal Party" shall mean

                  (i) in the case of any transaction  described in clause (x) or
(y) of the first sentence of Section 13(a), the Person that is the issuer of any
securities  into which  shares of Common  Stock of the Company are  converted in
such merger or  consolidation,  and if no securities  are so issued,  the Person
that is the other party to the merger or consolidation; and

                  (ii) in the case of any transaction described in clause (z) of
the first sentence of Section 13(a),  the Person that is the party receiving the
greatest  portion of the assets or earning  power  transferred  pursuant to such
transaction or transactions;

provided, however, that in any such case, (x) if the Common Stock of such Person
is not at such time and has not been  continuously  over the preceding  12-month
period  registered  under  Section 12 of the Exchange  Act, and such Person is a
direct or indirect Subsidiary of another Person the Common Stock of which is and
has been so registered,  "Principal Party" shall refer to such other Person; and
(y) in case such Person is a Subsidiary,  directly or  indirectly,  of more than
one  Person,  the  Common  Stocks  of two or more of which  are and have been so
registered,  "Principal  Party"  shall refer to whichever of such Persons is the
issuer of the Common Stock having the greatest  aggregate market value of shares
outstanding.

                  (c) The Company shall not consummate  any such  consolidation,
merger, sale or transfer unless prior thereto (x) the Principal Party shall have
a sufficient number of authorized shares of its Common Stock which have not been
issued or reserved  for issuance to permit the exercise in full of the Rights in
accordance  with this Section 13, and (y) the Company and each  Principal  Party
and each  other  Person  who may  become a  Principal  Party as a result of such
consolidation, merger, sale or transfer shall have executed and delivered to the
Rights  Agent a  supplemental  agreement  providing  for the  terms set forth in
Section 13(a) and (b) and further  providing that, as soon as practicable  after
the date of any consolidation,  merger,  sale or transfer of assets mentioned in
Section 13(a), the Principal Party at its own expense will

                  (i)  prepare  and  file a  registration  statement  under  the
Securities  Act with respect to the Rights and the securities  purchasable  upon
exercise of the Rights on an  appropriate  form,  use its best  efforts to cause
such  registration  statement to become  effective as soon as practicable  after
such filing and use its best  efforts to cause such  registration  statement  to
remain  effective (with a prospectus that at all times meets the requirements of
the Securities Act) until the Expiration Date;

                  (ii) use its best  efforts to qualify or  register  the Rights
and the  securities  purchasable  upon exercise of the Rights under the blue sky
laws of such jurisdictions as may be necessary or appropriate;

                  (iii) use its best  efforts to list (or  continue  the listing
of) the Rights and the securities  purchasable  upon exercise of the Rights on a
national  securities  exchange  or to  meet  the  eligibility  requirements  for
quotation on NASDAQ; and

                  (iv)  deliver to holders  of the Rights  historical  financial
statements for the Principal  Party and each of its  Affiliates  which comply in
all material  respects with the  requirements  for registration on Form 10 under
the Exchange Act.

The provisions of this Section 13 shall similarly apply to successive mergers or
consolidations or sales or other transfers.

         Section 14.  Fractional Rights and Fractional Shares.

                  (a) The Company  shall not be required to issue  fractions  of
Rights,  except  prior to the  Distribution  Date as provided  in Section  11(o)
hereof, or to distribute Right Certificates which evidence fractional Rights. If
the Company elects not to issue such fractional  Rights,  the Company shall pay,
in lieu of such  fractional  Rights,  to the  registered  holders  of the  Right
Certificates  with regard to which such  fractional  Rights  would  otherwise be
issuable,  an amount in cash equal to the same fraction of the Fair Market Value
of a whole Right, as determined pursuant to Section 11(d) hereof.

                  (b) The Company  shall not be required to issue  fractions  of
shares of Preferred Stock (other than fractions which are integral  multiples of
one  one-hundredth of a share of Preferred Stock) upon exercise of the Rights or
to distribute  certificates which evidence  fractional shares of Preferred Stock
(other than fractions  which are integral  multiples of one  one-hundredth  of a
share of Preferred  Stock).  If the Company elects not to issue such  fractional
shares,  the Company shall pay, in lieu of fractional  shares of Preferred Stock
that are not  integral  multiples of one  one-hundredth  of a share of Preferred
Stock, to the registered  holders of Right  Certificates at the time such Rights
are exercised as herein provided an amount in cash equal to the same fraction of
the Fair Market Value of one  one-hundredth  of a share of Preferred  Stock. For
purposes of this Section 14(b), the Fair Market Value of one  one-hundredth of a
share of Preferred  Stock shall be  determined  pursuant to Section 11(d) hereof
for the Trading Day immediately prior to the date of such exercise.

                  (c) The  holder  of a Right by the  acceptance  of the  Rights
expressly  waives his right to receive any  fractional  Rights or any fractional
shares upon exercise of a Right, except as permitted by this Section 14.

         Section 15.  Rights of Action.  All rights of action in respect of this
Agreement,  other than rights of action  vested in the Rights Agent  pursuant to
Sections 18 and 20 hereof,  are vested in the respective  registered  holders of
the Right  Certificates  (and,  prior to the  Distribution  Date, the registered
holders of the Common Stock); and any registered holder of any Right Certificate
(or, prior to the Distribution  Date, of the Common Stock),  without the consent
of the Right Agent or of the holder of any other Right Certificate (or, prior to
the Distribution Date, of the Common Stock),  may, in his own behalf and for his
own  benefit,  enforce,  and may  institute  and  maintain  any suit,  action or
proceeding  against the Company to enforce,  or otherwise act in respect of, his
right to exercise the Right  evidenced by such Right  Certificate  in the manner
provided in such Right  Certificate and in this Agreement.  Without limiting the
foregoing or any remedies available to the holders of Rights, it is specifically
acknowledged that the holders of Rights would not have an adequate remedy at law
for any breach of this  Agreement and shall be entitled to specific  performance
of the obligations  hereunder and injunctive relief against actual or threatened
violations of the obligations hereunder of any Person subject to this Agreement.
Holders  of  Rights  shall be  entitled  to  recover  the  reasonable  costs and
expenses,  including  attorneys' fees, incurred by them in any action to enforce
the provisions of this Agreement.

         Section 16.  Agreement of Right  Holders.  Every holder of a Right,  by
accepting  the same,  consents  and agrees with the Company and the Rights Agent
and with every other holder of a Right that:

                  (a)  prior  to the  Distribution  Date,  each  Right  will  be
transferable  only  simultaneously  and together  with the transfer of shares of
Common Stock;

                  (b) after the  Distribution  Date, the Right  Certificates are
transferable  only on the registry  books of the Rights Agent if  surrendered at
the office or offices of the Rights  Agent  designated  for such  purpose,  duly
endorsed or accompanied by a proper instrument of transfer;

                  (c) the  Company  and the Rights  Agent may deem and treat the
person in whose name a Right  Certificate (or, prior to the  Distribution  Date,
the  associated  Common Stock  certificate)  is registered as the absolute owner
thereof and of the Rights evidenced  thereby  (notwithstanding  any notations of
ownership or writing on the Right  Certificates  or the associated  Common Stock
certificate  made by anyone other than the Company or the Rights  Agent) for all
purposes  whatsoever,  and neither  the  Company  nor the Rights  Agent shall be
affected by any notice to the contrary; and 

                  (d)   notwithstanding   anything  in  this  Agreement  to  the
contrary,  neither the Company nor the Rights Agent shall have any  liability to
any holder of a Right or other Person as the result of its  inability to perform
any of its  obligations  under this  Agreement by reason of any  preliminary  or
permanent  injunction  or other  order,  decree or  ruling  issued by a court of
competent jurisdiction or by a governmental, regulatory or administrative agency
or commission,  or any statute,  rule, regulation or executive order promulgated
or enacted by any governmental  authority  prohibiting or otherwise  restraining
performance of such obligations;  provided,  however,  that the Company must use
its best  efforts to have any such order,  decree or ruling  lifted or otherwise
overturned as soon as possible.

         Section  17.  Right  Certificate  Holder Not Deemed a  Shareholder.  No
holder,  as such, of any Right  Certificate  shall be entitled to vote,  receive
dividends  or be deemed for any  purpose  the holder of the shares of  Preferred
Stock or any other  securities  of the Company which may at any time be issuable
on the exercise of the Rights represented  thereby, nor shall anything contained
herein or in any Right Certificate be construed to confer upon the holder of any
Right Certificate, as such, any of the rights of a shareholder of the Company or
any right to vote for the election of directors or upon any matter  submitted to
shareholders  at any  meeting  thereof,  or to give or  withhold  consent to any
corporate  action,  or to receive notice of meetings or other actions  affecting
shareholders  (except as provided in Section 25 hereof), or to receive dividends
or subscription  rights,  or otherwise,  until the Right or Rights  evidenced by
such  Right  Certificate  shall  have  been  exercised  in  accordance  with the
provisions hereof.

         Section 18.  Concerning the Rights Agent.

                  (a) The Company  agrees to pay to the Rights Agent  reasonable
compensation  for all services  rendered by it hereunder and, from time to time,
on demand of the Rights  Agent,  its  reasonable  expenses  and counsel fees and
disbursements  and  other  disbursements  incurred  in  the  administration  and
execution  of this  Agreement  and the exercise  and  performance  of its duties
hereunder.  The Company  also agrees to  indemnify  the Rights Agent for, and to
hold it harmless  against,  any loss,  liability,  or expense,  incurred without
negligence, bad faith or willful misconduct on the part of the Rights Agent, for
anything done or omitted by the Rights Agent in connection  with the  acceptance
and  Administration  of this  Agreement,  including  the costs and  expenses  of
defending  against  any  claim  of  liability  arising  therefrom,  directly  or
indirectly.  The indemnity  provided for herein shall survive the  expiration of
the Rights and the termination of this Agreement.

                  (b) The Rights  Agent  shall be  protected  and shall incur no
liability  for or in respect of any action  taken,  suffered or omitted by it in
connection with its  administration of this Agreement in reliance upon any Right
Certificate  or  certificate  for  Common  Stock,   Preferred  Stock,  or  other
securities  of the Company,  instrument  of  assignment  or  transfer,  power of
attorney,   endorsement,   affidavit,   letter,  notice,   direction,   consent,
certificate,  statement, or other paper or document believed by it to be genuine
and to be signed,  executed and, where necessary,  verified or acknowledged,  by
the proper Person or Persons.

         Section 19. Merger or Consolidation or Change of Name of Rights Agent.

                  (a)  Any  corporation  into  which  the  Rights  Agent  or any
successor  Rights Agent may be merged or with which it may be  consolidated,  or
any corporation  resulting from any merger or  consolidation to which the Rights
Agent  or any  successor  Rights  Agent  shall be a  party,  or any  corporation
succeeding to the corporate trust or shareholder services business of the Rights
Agent or any successor Rights Agent,  shall be the successor to the Rights Agent
under this Agreement without the execution or filing of any paper or any further
act on the part of any of the parties  hereto,  provided  that such  corporation
would be  eligible  for  appointment  as a  successor  Rights  Agent  under  the
provisions of Section 21 hereof. In case at the time such successor Rights Agent
shall  succeed  to the  agency  created  by  this  Agreement,  any of the  Right
Certificates shall have been countersigned but not delivered, any such successor
Rights Agent may adopt the  countersignature of the predecessor Rights Agent and
deliver such Right  Certificates so countersigned;  and in case at that time any
of the  Right  Certificates  shall not have been  countersigned,  any  successor
Rights Agent may countersign such Right  Certificates  either in the name of the
predecessor or in the name of the successor  Rights Agent; and in all such cases
such  Right  Certificates  shall  have  the full  force  provided  in the  Right
Certificates and in this Agreement.

                  (b) In case at any time the name of the Rights  Agent shall be
changed  and at  such  time  any of  the  Right  Certificates  shall  have  been
countersigned but not delivered, the Rights Agent may adopt the countersignature
under its prior name and deliver Right  Certificates  so  countersigned;  and in
case  at  that  time  any  of  the  Right   Certificates  shall  not  have  been
countersigned,  the Rights Agent may countersign such Right Certificates  either
in its prior  name or in its  changed  name;  and in all such  cases  such Right
Certificates shall have the full force provided in the Right Certificates and in
this Agreement.

         Section 20. Duties of Rights  Agent.  The Rights Agent  undertakes  the
duties and  obligations  imposed by this Agreement upon the following  terms and
conditions,  by all of which the Company and the holders of Right  Certificates,
by their acceptance thereof, shall be bound:

                  (a) The Rights Agent may consult with legal  counsel  selected
by it (who  may be legal  counsel  for the  Company),  and the  opinion  of such
counsel shall be full and complete  authorization  and  protection to the Rights
Agent as to any action  taken or  omitted by it in good faith and in  accordance
with such opinion.

                  (b)  Whenever  in the  performance  of its  duties  under this
Agreement the Rights Agent shall deem it necessary or desirable that any fact or
matter (including,  without limitation, the identity of any Acquiring Person and
the  determination  of "Fair  Market  Value")  be proved or  established  by the
Company prior to taking or suffering any action  hereunder,  such fact or matter
(unless other evidence in respect thereof be herein specifically prescribed) may
be deemed to be conclusively proved and established by a certificate signed by a
person  believed by the Rights  Agent to be the  Chairman  of the Board,  a Vice
Chairman of the Board,  the President,  a Vice  President,  the  Treasurer,  any
Assistant Treasurer,  the Secretary or an Assistant  Secretary,  the Clerk or an
Assistant  Clerk of the  Company and  delivered  to the Rights  Agent.  Any such
certificate shall be full authorization to the Rights Agent for any action taken
or  suffered  in good  faith by it under the  provisions  of this  Agreement  in
reliance upon such certificate.

                  (c) The Rights  Agent shall be liable  hereunder  only for its
own negligence, bad faith or willful misconduct.

                  (d) The Rights  Agent  shall not be liable for or by reason of
any of the statements of fact or recitals  contained in this Agreement or in the
Right  Certificates  (except  its  countersignature  thereof)  or be required to
verify the same, but all such statements and recitals are and shall be deemed to
have been made by the Company only.

                  (e) The Rights Agent shall not be under any  responsibility in
respect of the validity of this  Agreement or the execution and delivery  hereof
(except  the due  execution  hereof by the  Rights  Agent) or in  respect of the
validity or  execution  of any Right  Certificate  (except its  countersignature
thereof);  nor shall it be  responsible  for any  breach by the  Company  of any
covenant or condition  contained in this Agreement or in any Right  Certificate;
nor shall it be responsible for any change in the  exercisability  of the Rights
(including  the Rights  becoming  void  pursuant to Section  7(e) hereof) or any
adjustment  required  under the provisions of Sections 11, 13 or 23(c) hereof or
responsible  for the  manner,  method or amount  of any such  adjustment  or the
ascertaining  of the existence of facts that would  require any such  adjustment
(except with respect to the exercise of Rights  evidenced by Right  Certificates
after  receipt of a  certificate  describing  any such  adjustment  furnished in
accordance  with  Section  12  hereof),  nor  shall  it be  responsible  for any
determination  by the Board of Directors of the Company of current  market value
of the  Rights or  Preferred  Stock  pursuant  to the  provisions  of Section 14
hereof;  nor shall it by any act hereunder be deemed to make any  representation
or warranty as to the authorization or reservation of any shares of Common Stock
or  Preferred  Stock  to be  issued  pursuant  to this  Agreement  or any  Right
Certificate or as to whether any shares of Common Stock or Preferred Stock will,
when so issued, be validly authorized and issued, fully paid and nonassessable.

                  (f)  The  Company  agrees  that  it  will  perform,   execute,
acknowledge  and deliver or cause to be performed,  executed,  acknowledged  and
delivered  all such further and other acts,  instruments  and  assurances as may
reasonably be required by the Rights Agent for the carrying out or performing by
the Rights Agent of the provisions of this Agreement.

                  (g) The Rights  Agent is hereby  authorized  and  directed  to
accept  instructions with respect to the performance of its duties hereunder and
certificates delivered pursuant to any provision hereof from any person believed
by the Rights  Agent to be the Chairman of the Board,  any Vice  Chairman of the
Board, the President, a Vice President, the Secretary or an Assistant Secretary,
the Clerk, an Assistant  Clerk,  the Treasurer or an Assistant  Treasurer of the
Company,  and is authorized to apply to such officers for advice or instructions
in connection  with its duties,  and it shall not be liable for any action taken
or suffered to be taken by it in good faith in accordance  with  instructions of
any such officer.  Any application by the Rights Agent for written  instructions
from the Company  may, at the option of the Rights  Agent,  set forth in writing
any  action  proposed  to be taken or omitted  by the  Rights  Agent  under this
Agreement  and the date on or after  which  such  action  shall be taken or such
omission shall be effective. The Rights Agent shall not be liable for any action
taken by, or  omission  of,  the  Rights  Agent in  accordance  with a  proposal
included in such  application on or after the date specified in such application
(which date shall not be less than five Business Days after the date any officer
of the Company actually receives such application, unless any such officer shall
have  consented in writing to an earlier date) unless,  prior to taking any such
action (or the  effective  date in the case of an  omission),  the Rights  Agent
shall  have  received  written  instructions  in  response  to such  application
specifying the action to be taken or omitted.

                  (h) The Rights Agent and any shareholder, director, officer or
employee of the Rights Agent may buy, sell or deal in any of the Rights or other
securities of the Company or become pecuniarily interested in any transaction in
which the  Company  may be  interested,  or  contract  with or lend money to the
Company  or  otherwise  act as fully and freely as though it were not the Rights
Agent under this Agreement.  Nothing herein shall preclude the Rights Agent from
acting in any other capacity for the Company or for any other legal entity.

                  (i) The  Rights  Agent may  execute  and  exercise  any of the
rights or powers hereby vested in it or perform any duty hereunder either itself
or by or through  its  attorneys  or agents,  and the Rights  Agent shall not be
answerable or accountable for any act, omission,  default, neglect or misconduct
of any such attorneys or agents or for any loss to the Company or to the holders
of the  Rights  resulting  from any such  act,  omission,  default,  neglect  or
misconduct,  provided  reasonable  care  was  exercised  in  the  selection  and
continued employment thereof.

                  (j) No provision of this  Agreement  shall  require the Rights
Agent to expend or risk its own funds or otherwise incur any financial liability
in the  performance  of any of its duties  hereunder  or in the  exercise of its
rights if there shall be reasonable grounds for believing that repayment of such
funds  or  adequate  indemnification  against  such  risk  or  liability  is not
reasonably assured to it.

                  (k) If, with respect to any Right  Certificate  surrendered to
the Rights Agent for exercise or transfer,  the certificate attached to the form
of  assignment  or form of election to purchase,  as the case may be, has either
not been completed or indicates an affirmative  response to clause (1) or clause
(2) thereof,  the Rights Agent shall not take any further action with respect to
such requested exercise or transfer without first consulting with the Company.

         Section 21. Change of Rights  Agent.  The Rights Agent or any successor
Rights Agent may resign and be discharged  from its duties under this  Agreement
upon  thirty (30) days'  notice in writing  mailed to the  Company,  and to each
transfer  agent of the Common Stock and the  Preferred  Stock,  by registered or
certified  mail,  and to the holders of the Right  Certificates  by  first-class
mail.  The Company may remove the Rights  Agent or any  successor  Rights  Agent
(with or without cause) upon thirty (30) days' notice in writing,  mailed to the
Rights Agent or successor Rights Agent, as the case may be, and to each transfer
agent of the Common Stock and Preferred  Stock by registered or certified  mail,
and to the holders of the Right  Certificates by first-class mail. If the Rights
Agent shall resign or be removed or shall otherwise  become incapable of acting,
the Company shall appoint a successor to the Rights Agent.  If the Company shall
fail to make such  appointment  within a period of thirty (30) days after giving
notice  of such  removal  or after  it has  been  notified  in  writing  of such
resignation or incapacity by the resigning or  incapacitated  Rights Agent or by
the holder of a Right Certificate (who shall, with such notice, submit his Right
Certificate for inspection by the Company),  then the incumbent  Rights Agent or
the  registered  holder  of any  Right  Certificate  may  apply to any  court of
competent  jurisdiction for the appointment of a new Rights Agent. Any successor
Rights Agent,  whether appointed by the Company or by such a court, shall be (a)
a corporation  organized and doing  business under the laws of the United States
or of the  Commonwealth  of  Massachusetts  or the  State of New York (or of any
other state of the United States so long as such corporation is authorized to do
business as a banking  institution in the  Commonwealth of  Massachusetts or the
State of New York),  in good  standing,  which is authorized  under such laws to
exercise stock transfer or corporate  trust powers and is subject to supervision
or  examination  by federal or state  authority and which has at the time of its
appointment  as  Rights  Agent  a  combined  capital  and  surplus  of at  least
$50,000,000 or (b) an Affiliate of a corporation described in clause (a) of this
sentence. After appointment, the successor Rights Agent shall be vested with the
same powers,  rights,  duties and  responsibilities as if it had been originally
named as Rights Agent without  further act or deed; but the  predecessor  Rights
Agent shall deliver and transfer to the  successor  Rights Agent any property at
the time held by it  hereunder,  and execute and deliver any further  assurance,
conveyance,  act or deed necessary for the purpose. Not later than the effective
date of any such  appointment,  the Company shall file notice thereof in writing
with the  predecessor  Rights Agent and each transfer  agent of the Common Stock
and the Preferred  Stock, and mail a notice thereof in writing to the registered
holders of the Right  Certificates.  Failure to give any notice  provided for in
this Section 21, however,  or any defect therein,  shall not affect the legality
or validity of the resignation or removal of the Rights Agent or the appointment
of the successor Rights Agent, as the case may be.

         Section 22. Issuance of New Right Certificates.  Notwithstanding any of
the provisions of this  Agreement or of the Rights to the contrary,  the Company
may, at its option, issue new Right Certificates  evidencing Rights in such form
as may be approved by its Board of Directors to reflect any adjustment or change
in the  Exercise  Price per  share and the  number or kind or class of shares of
stock or other securities or property  purchasable under the Right  Certificates
made in  accordance  with the  provisions  of this  Agreement.  In addition,  in
connection  with the  issuance or sale of shares of Common Stock  following  the
Distribution  Date and prior to the redemption or expiration of the Rights,  the
Company  (a) shall,  with  respect  to shares of Common  Stock so issued or sold
pursuant  to the  exercise  of stock  options  or  under  any  employee  plan or
arrangement,  or  upon  the  exercise,  conversion  or  exchange  of  securities
hereafter  issued by the  Company,  and (b) may,  in any other  case,  if deemed
necessary or appropriate  by the Board of Directors of the Company,  issue Right
Certificates  representing  the appropriate  number of Rights in connection with
such issuance or sale;  provided,  however,  that (i) no such Right  Certificate
shall be issued if,  and to the extent  that,  the  Company  shall be advised by
counsel that such issuance would create a significant  risk of material  adverse
tax  consequences  to the  Company or the person to whom such Right  Certificate
would be issued,  and (ii) no such Right  Certificate shall be issued if, and to
the extent that, appropriate  adjustments shall otherwise have been made in lieu
of the issuance thereof.

         Section 23.  Redemption and Termination.

                  (a) The Board of  Directors of the Company may, at its option,
redeem all but not less than all of the then outstanding  Rights at a redemption
price of $0.02 per Right,  subject to  adjustments  as provided in Section 23(d)
hereof (such redemption price being  hereinafter  referred to as the "Redemption
Price").  The Rights may be redeemed  only until the  earliest of (i) 5:00 p.m.,
Boston  time,  on the  tenth day after  the  Stock  Acquisition  Date,  (ii) the
declaration  by the Board of  Directors  that any Person is an  Adverse  Person,
(iii) the occurrence of a Section 13 Event, or (iv) the Final  Expiration  Date.
The Rights may not be redeemed at any time while there is an Acquiring Person or
an  Adverse  Person or at any time on or after  the date of a change  (resulting
from one or more proxy or consent  solicitations) in a majority of the directors
in office at the  commencement  of any such  solicitation if any Person who is a
participant in any such  solicitation is an Adverse Person or has stated (or, if
upon the commencement of such  solicitation a majority of the Board of Directors
of the  Company  has  determined  in good faith) that such Person (or any of its
Affiliates or Associates)  intends to take, or may consider  taking,  any action
which would result in such person  becoming an  Acquiring  Person or which would
cause the  occurrence  of a  Triggering  Event  unless  there are  Disinterested
Directors then in office and redemption of the Rights is authorized by the Board
of Directors, including at least a majority of the Disinterested Directors.

                  (b)  Immediately  upon the action of the Board of Directors of
the Company  ordering  the  redemption  of the  Rights,  and without any further
action and without any notice,  the right to exercise the Rights will  terminate
and the only right  thereafter  of the holders of Rights shall be to receive the
Redemption Price for each Right so held.  Promptly after the action of the Board
of  Directors  ordering the  redemption  of the Rights,  the Company  shall give
notice  of such  redemption  to the  Rights  Agent and the  holders  of the then
outstanding  Rights by mailing  such notice to the Rights  Agent and to all such
holders at their last  addresses as they appear upon the  registry  books of the
Rights Agent or, prior to the  Distribution  Date, on the registry  books of the
Transfer  Agent for the Common  Stock.  Any notice which is mailed in the manner
herein  provided shall be deemed given,  whether or not the holder  receives the
notice.  Each  such  notice of  redemption  will  state the  method by which the
payment of the Redemption Price will be made. Neither the Company nor any of its
Affiliates or Associates may redeem, acquire or purchase for value any Rights at
any time in any manner  other than that  specifically  set forth in this Section
23, or in connection  with the purchase,  acquisition or redemption of shares of
Common Stock prior to the Distribution Date.

                  (c) The Company may, at its option,  pay the Redemption  Price
in cash,  shares of Common  Stock  (based on the Fair Market Value of the Common
Stock as of the time of  redemption) or any other form of  consideration  deemed
appropriate by the Board.

                  (d) In the event the Company  shall at any time after the date
of this  Rights  Agreement  (i) pay any  dividend  on Common  Stock in shares of
Common  Stock,  (ii)  subdivide  the  outstanding  shares of Common Stock into a
greater number of shares or (iii) combine the outstanding shares of Common Stock
into a smaller number of shares of the outstanding  shares of Common Stock, then
and in each such event the  Redemption  Price  after such event  shall equal the
Redemption Price immediately  prior to such event multiplied by a fraction,  the
numerator  of  which  is the  number  of  shares  of  Common  Stock  outstanding
immediately  prior to such event and the  denominator  of which is the number of
shares of Common  Stock  outstanding  immediately  after such  event;  provided,
however, that in each case such adjustment to the Redemption Price shall be made
only if the amount of the  Redemption  Price  shall be reduced or  increased  by
$0.002 per Right.

         Section 24.  Exchange

                  (a) The Company may, only if there are Disinterested Directors
then in  office  and such  action  is  authorized  by the  Board  of  Directors,
including at least a majority of the Disinterested  Directors then in office, at
any time on or after the occurrence of a Section  11(a)(ii) Event,  exchange all
or part of the then outstanding and exercisable  Rights (which shall not include
Rights that have become void pursuant to the  provisions of Section 7(e) hereof)
for shares of Common Stock or Preferred Stock (or any combination thereof) at an
exchange ratio of one share of Common Stock or one  one-hundredth  of a share of
Preferred  Stock per Right,  appropriately  adjusted to reflect any stock split,
stock  dividend or similar  transaction  occurring  after the date hereof  (such
exchange ratio being hereinafter referred to as the "Exchange Ratio").

                  (b)  Immediately  upon the action of the Company  ordering the
exchange of any Rights pursuant to subsection (a) of this Section 24 and without
any further  action and without  any notice,  the right to exercise  such Rights
shall  terminate and the only right  thereafter of a holder of such Rights shall
be to receive that number of shares of Common Stock or one  one-hundredths  of a
share of Preferred  Stock (or any  combination  thereof)  equal to the number of
such Rights held by such holder  multiplied by the Exchange  Ratio.  The Company
shall  promptly give notice of any such  exchange in accordance  with Section 26
hereof;  provided,  however,  that the  failure to give,  or any defect in, such
notice  shall not affect the  validity  of such  exchange.  Each such  notice of
exchange  will  state the method by which the  exchange  of the shares of Common
Stock or  Preferred  Stock for Rights will be effected  and, in the event of any
partial  exchange,  the number of Rights  which will be  exchanged.  Any partial
exchange  shall be effected  pro rata based on the number of Rights  (other than
Rights which have become void pursuant to the provisions of Section 7(e) hereof)
held by each holder of Rights.

         Section 25.  Notice of Certain Events.

                  (a) In case the Company shall  propose,  at any time after the
Distribution  Date, (i) to pay any dividend payable in stock of any class to the
holders of Preferred  Stock or to make any other  distribution to the holders of
Preferred Stock (other than a regular  periodic cash dividend out of earnings or
retained  earnings  of the  Company),  or (ii) to offer to the holders of Common
Stock or Preferred  Stock rights or warrants to subscribe for or to purchase any
additional  shares of Common Stock or Preferred  Stock or shares of stock of any
class or any  other  securities,  rights  or  options,  or (iii) to  effect  any
reclassification   of  its  Common  Stock  or  Preferred  Stock  (other  than  a
reclassification  involving only the subdivision of outstanding shares of Common
Stock or Preferred Stock), or (iv) to effect any consolidation or merger into or
with,  or to effect any sale,  mortgage or other  transfer  (or to permit one or
more of its Subsidiaries to effect any sale, mortgage or other transfer), in one
transaction or a series of related transactions, of 50% or more of the assets or
earning  power of the  Company and its  Subsidiaries  (taken as a whole) to, any
other Person (other than a Subsidiary of the Company in one or more transactions
each of which is not prohibited by Section 11(n)  hereof),  or (v) to effect the
liquidation,  dissolution or winding up of the Company, then, in each such case,
the Company shall give to each holder of a Right Certificate, in accordance with
Section 26 hereof,  a notice of such  proposed  action,  which shall specify the
record date for the purposes of such stock  dividend,  distribution of rights or
warrants,  or the date on which such  reclassification,  consolidation,  merger,
sale, transfer, liquidation, dissolution, or winding up is to take place and the
date of  participation  therein by the holders of the shares of Preferred Stock,
if any such date is to be fixed,  and such notice  shall be so given in the case
of any action  covered by clause  (i) or (ii)  above at least  twenty  (20) days
prior to the  record  date for  determining  holders  of the shares of Common or
Preferred  Stock for purposes of such action,  and in the case of any such other
action,  at least  twenty  (20)  days  prior to the date of the  taking  of such
proposed  action or the date of  participation  therein  by the  holders  of the
shares of Common or Preferred Stock, whichever shall be the earlier.

                  (b) In case any Section  11(a)(ii) Event shall occur, then the
Company shall as soon as practicable  thereafter give to each registered  holder
of a Right  Certificate,  in accordance with Section 26 hereof,  a notice of the
occurrence of such event,  which shall specify the event and the consequences of
the event to holders of Rights under Section 11(a)(ii) hereof.

         Section 26. Notices. Notices or demands authorized by this Agreement to
be given or made by the Rights  Agent or by the holder of any Right  Certificate
to or on the Company shall be sufficiently  given or made if sent by first-class
mail, postage prepaid, addressed (until another address is filed in writing with
the Rights Agent) as follows:

                  Perini Corporation
                  73 Mt. Wayte Avenue
                  Framingham, Massachusetts  01701
                  Attention:  Corporate Secretary

Subject to the provisions of Section 21, any notice or demand authorized by this
Agreement  to be given or made by the  Company  or by the  holder  of any  Right
Certificate  to or on the Rights  Agent shall be  sufficiently  given or made if
sent by first-class mail,  postage prepaid,  addressed (until another address is
filed in writing with the Company) as follows:

                  The First National Bank of Boston
                  P.O. Box 1865
                  Boston, MA 02105-1865
                  Attention:  Shareholder Services Division

Notices  or  demands  authorized  by this  Agreement  to be given or made by the
Company or the Rights Agent to the holder of any Right Certificate (or, prior to
the Distribution Date, to the holder of any certificate  representing  shares of
Common Stock) shall be sufficiently  given or made if sent by first-class  mail,
postage prepaid, addressed to such holder at the address of such holder as shown
on the registry books of the Company.

         Section 27. Supplements and Amendments.  Prior to the Distribution Date
and subject to the penultimate  sentence of this Section 27, the Company and the
Rights Agent shall, if the Company so directs, supplement or amend any provision
of this  Agreement as the Company may deem  necessary  or desirable  without the
approval of any holders of  certificates  representing  shares of Common  Stock.
From and after the Distribution Date and subject to the penultimate  sentence of
this  Section  27, the  Company and the Rights  Agent  shall,  if the Company so
directs,  supplement or amend this Agreement  without the approval of any holder
of Right  Certificates  in order (i) to cure any  ambiguity,  (ii) to correct or
supplement any provision contained herein which may be defective or inconsistent
with any other provisions  herein,  (iii) to shorten or lengthen any time period
hereunder (which  shortening or lengthening shall be effective only if there are
Disinterested Directors then in office and shall require the concurrence of such
Disinterested  Directors if (A) such supplement or amendment  occurs at or after
the time a Person  becomes an Acquiring  Person or an Adverse Person or (B) such
supplement or amendment occurs on or after the date of a change  (resulting from
one or more proxy or consent  solicitations) in a majority of the directors then
in  office at the  commencement  of such  solicitation  if any  Person  who is a
participant in such solicitation is an Adverse Person or has stated (or, if upon
the commencement of such  solicitation,  a majority of the Board of Directors of
the  Company  has  determined  in good  faith)  that such  Person (or any of its
Affiliates or Associates)  intends to take, or may consider  taking,  any action
which would result in such Person  becoming an  Acquiring  Person or which would
cause the occurrence of a Triggering Event), or (iv) to change or supplement the
provisions  hereof  in any  manner  which  the  Company  may deem  necessary  or
desirable and which shall not  adversely  affect the interests of the holders of
Right  Certificates  (other than an Acquiring  Person,  an Adverse Person or any
Affiliate or Associate of such a Person); provided, however, that this Agreement
may not be supplemented or amended to lengthen, pursuant to clause (iii) of this
sentence,  (A) a time period relating to when the Rights may be redeemed at such
time as the Rights are not then  redeemable  or (B) any other time period unless
such  lengthening is for the purpose of protecting,  enhancing or clarifying the
rights of, and the benefits to, the holders of Rights. Upon the delivery of such
certificate  from an  appropriate  officer of the Company  which states that the
proposed supplement or amendment is in compliance with the terms of this Section
27, the Rights Agent shall execute such supplement or amendment. Notwithstanding
anything contained in this Agreement to the contrary, no supplement or amendment
shall be made on or after the  Distribution  Date which  changes the  Redemption
Price,  the Final  Expiration  Date,  the  Exercise  Price or the  number of one
one-hundredths of a share of Preferred Stock for which a Right is exercisable or
which  affects any right vested in the Rights Agent.  Prior to the  Distribution
Date, the interests of the holders of Rights shall be deemed coincident with the
interests of the holders of Common Stock.

         Section  28.  Successors.  All the  covenants  and  provisions  of this
Agreement  by or for the benefit of the  Company or the Rights  Agent shall bind
and inure to the benefit of their respective successors and assigns hereunder.

         Section 29.  Determinations and Actions by the Board of Directors.  For
all  purposes  of this  Agreement,  any  calculation  of the number of shares of
Common Stock  outstanding  at any  particular  time,  including  for purposes of
determining the particular percentage of such outstanding shares of Common Stock
of which any Person is the Beneficial  Owner,  shall be made in accordance  with
the last sentence of Rule  13d-3(d)(1)(i)  of the General Rules and  Regulations
under the Exchange  Act as in effect on the date hereof.  The Board of Directors
of the Company (with, where specifically provided for herein, the concurrence of
the  Disinterested  Directors)  shall have the exclusive  power and authority to
administer  this  Agreement  and to exercise all rights and powers  specifically
granted  to the  Board  (with,  where  specifically  provided  for  herein,  the
concurrence  of the  Disinterested  Directors)  or to the Company,  or as may be
necessary  or  advisable  in the  administration  of this  Agreement,  including
without limitation,  the right and power to (i) interpret the provisions of this
Agreement and (ii) make all determinations deemed necessary or advisable for the
administration  of this Agreement  (including a  determination  to redeem or not
redeem the Rights or to amend the  Agreement).  All such actions,  calculations,
interpretations and determinations (including, for purposes of clause (y) below,
all omissions with respect to the foregoing) which are done or made by the Board
of Directors (or, where  specifically  provided for herein, by the Disinterested
Directors)  in good  faith  shall (x) be final,  conclusive  and  binding on the
Company,  the Rights Agent, the holders of the Rights and all other parties, and
(y) not subject any member of the Board of Directors or any of the Disinterested
Directors to any liability to the holders of the Rights or to any other person.

         Section 30. Benefits of this Agreement. Nothing in this Agreement shall
be construed to give to any person or  corporation  other than the Company,  the
Rights Agent and the registered holders of the Right Certificates (and, prior to
the Distribution Date, the Common Stock) any legal or equitable right, remedy or
claim  under  this  Agreement;  but  this  Agreement  shall  be for the sole and
exclusive benefit of the Company, the Rights Agent and the registered holders of
the Right Certificates (and, prior to the Distribution Date,  registered holders
of the Common Stock).

         Section  31.  Severability.   If  any  term,  provision,   covenant  or
restriction  of this Agreement is held by a court of competent  jurisdiction  or
other  authority  to be invalid,  void or  unenforceable,  the  remainder of the
terms, provisions,  covenants and restrictions of this Agreement shall remain in
full force and effect and shall in no way be affected,  impaired or invalidated;
provided,  however,  that  notwithstanding  anything  in this  Agreement  to the
contrary, if any such term,  provision,  covenant or restriction is held by such
court  or  authority  to be  invalid,  void or  unenforceable  and the  Board of
Directors of the Company (including, if at the time of such determination, there
is an Acquiring  Person or an Adverse  Person,  a majority of the  Disinterested
Directors  then in office)  determines in its good faith  judgment that severing
the invalid  language from the Agreement would  adversely  affect the purpose or
effect of the Agreement,  the right of redemption set forth in Section 23 hereof
shall be  reinstated  and shall not expire  until the close of  business  on the
tenth day following the date of such determination by the Board of Directors.

         Section 32.  Governing Law. This  Agreement,  each Right and each Right
Certificate  issued  hereunder  shall be deemed to be a contract  made under the
laws of the Commonwealth of Massachusetts and for all purposes shall be governed
by and construed in accordance with the laws of such Commonwealth  applicable to
contracts to be made and to be performed entirely within Massachusetts.

         Section 33. Counterparts.  This Agreement may be executed in any number
of counterparts and each of such  counterparts  shall for all purposes be deemed
to be an original,  and all such counterparts shall together  constitute but one
and the same instrument.

         Section 34. Descriptive  Headings.  Descriptive headings of the several
Sections of this  Agreement  are  inserted  for  convenience  only and shall not
control or affect the meaning or construction of any of the provisions hereof.

         IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
duly executed and their respective  corporate seals to be hereunto affixed,  all
as of the day and year first above written.

[Corporate Seal]
                                         PERINI CORPORATION


                                         By
                                             Name:
                                             Title:


[Corporate Seal]


                                         THE FIRST NATIONAL
                                         BANK OF BOSTON, as
                                         Rights Agent


                                         By
                                             Name:
                                             Title: