CERTIFICATE OF AMENDMENT

                                          OF

                             CERTIFICATE OF INCORPORATION

                                          OF

                               TORREY INVESTMENTS INC.

         Torrey Investments, Inc., a Delaware corporation, hereby certifies as
follows:

         FIRST.  The Board of Directors of said corporation duly adopted a
resolution setting forth and declaring advisable the amendment of Article Fourth
of the certificate of incorporation of said corporation to increase the total
number of shares which the corporation shall have authority to issue, to create
a new class of capital stock of the corporation to be known as Class B Common
Stock and to set forth the powers, preferences and rights of the Common Stock
and the Class B Common Stock of the corporation, and the qualifications,
limitations or restrictions thereof, so that, as amended, said Article shall
read as follows:

         "FOURTH.  The total number of shares of all classes of stock which the
corporation shall have authority to issue is 1,100 shares, of which 1,000
shares of the par value of $.01 per share shall be designated as "Common Stock"
and 100 shares of the par value of $.01 per share shall be designated as
"Class B Common Stock."  The powers, preferences and rights of the Common Stock
and the Class B Common Stock, and the qualifications, limitations or
restrictions thereof, shall be identical in all respects, except as otherwise
required by law and except as follows:

         (a) Except as otherwise required by law, the holders of the Common
    Stock shall be entitled to one (1) vote per share and the holders of the
    Class B Com-



    mon Stock shall be entitled to ten (10) votes per share on all matters on
    which stockholders are entitled to vote.  Except as otherwise set forth
    herein the Common Stock and the Class B Common Stock shall vote together as
    a single class on all matters on which stockholders are entitled to vote.

              (b) The Common Stock and the Class B Common Stock shall each be
         entitled to vote separately as a class with respect to (i) amendments
         of this certificate of incorporation authorizing the corporation to
         issue additional shares of Common Stock or Class B Common Stock and
         (ii) other amendments of this certificate of incorporation that alter
         or change the powers, preferences or rights, or the qualifications,
         limitations or restrictions thereof, of their respective class of
         stock so as to affect them adversely and (iii) such other matters as
         may require class votes under the General Corporation Law of Delaware.

              (c) The holders of the Common Stock and the Class B Common Stock
         shall be entitled to share equally, on a per share basis, in all
         dividends declared from time to time by the Board of Directors of the
         corporation and in all distributions to stockholders upon any
         liquidation, dissolution or winding up of the corporation.

              (d) Each holder of a share of Class B Common Stock shall have the
         right at any time, or from time to time, to convert such share into
         one fully paid and nonassessable share of Common Stock.  In order to
         exercise such conversion privilege, such holder shall surrender the
         certificate or certificates representing the shares of Class B Common
         Stock to be converted during usual business hours to the corporation
         at its principal office or at any office or agency of the corpora-


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         tion maintained for the transfer of the Common Stock together with a
         written notice of the election of such holder to convert the shares
         represented by such certificate or certificates or any portion thereof
         specified in such notice into Common Stock and stating the name(s) and
         address(es) in which the certificate(s) for shares of Common Stock
         issuable upon such conversion shall be registered.  As promptly as
         practicable thereafter, the corporation shall issue and deliver to or
         upon the order of such holder a certificate or certificates for the
         number of shares of Common Stock issuable upon such conversion.  In
         case any certificate for shares of Class.  Common Stock shall be
         surrendered for conversion of only a part of the shares represented
         thereby, the corporation shall deliver to such holder a certificate or
         certificates for the number of shares of Class B Common Stock
         represented by such surrendered certificate which are not being
         converted.  Upon any conversion of shares of Class B Common Stock into
         shares of Common Stock, any dividends or other distributions payable
         to holders of records of shares of Class B Common Stock prior to the
         date of surrender of such certificate or certificates shall remain
         payable to such surrendering holder, and any dividends or other
         distributions payable to holders of record of shares of Common Stock
         prior to the date of surrender of such certificate or certificates
         shall remain payable to such holders.

              (e) No holder of any share of Class B Common Stock may transfer,
         and the corporation shall not register the transfer of, any share of
         Class B Common Stock, whether by sale, assignment, gift, bequest,
         appointment or otherwise.  In the event of any purported or attempted
         transfer of any share of Class B Common


                                         -3-



    Stock or upon the death or adjudication of bankruptcy or incompetency of
    the holder of any share of Class B Common Stock, such share shall be deemed
    to have been converted into a share of Common Stock as of the date of such
    death or adjudication.  There shall be noted conspicuously on the face of
    each certificate representing shares of Class B Common Stock that transfer
    and registration of transfer thereof are restricted as provided in this
    certificate of incorporation.

         (f) Shares of Class B Common Stock converted into Common Stock as
    provided herein shall resume the status of authorized but unissued shares
    of Class B Common Stock but shall not thereafter be issued except upon the
    affirmative vote or consent of the holders of a majority of the shares of
    Common Stock at the time outstanding."

         SECOND.  In lieu of a vote of stockholders, written consent to the
foregoing amendment had been given by the holders of all of the outstanding
stock entitled vote to thereon in accordance with the provisions of Section 228
of the General Coporation Law of Delaware, and such amendment has been duly 
adopted in accordance with the provisions of Section 242 of the General 
Corporation Law of Delaware.

         IN WITNESS WHEREOF, Torrey Investments Inc. has caused this
certificate to be signed by Terence J. Gooding, its President, and attested by
Shirlee A. Ewell, its Secretary, on the 25th day of June, 1991.

                                            TORREY INVESTMENTS INC.



Attest:                                     By /s/ Terence J. Gooding
                                               --------------------------
                                               Terence J. Gooding
By /s/ Shirlee A. Ewell
   ----------------------------
   Shirlee A. Ewell



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