UNITED STATIONERS INC
SC 13D/A, 2000-04-14
PAPER & PAPER PRODUCTS
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                       SECURITIES AND EXCHANGE COMMISSION
                              Washington, DC 20549

                                  SCHEDULE 13D
                                 (Rule 13d-101)

           INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT
          TO RULE 13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO
                                  RULE 13d-2(a)

                               (Amendment No. 1)

                             United Stationers Inc.
                                (Name of Issuer)

                     Common Stock, par value $0.10 per share
                         (Title of Class of Securities)

                                    913004107
                                 (CUSIP Number)

                                 Mark C. Wehrly
                       Farallon Capital Management, L.L.C.
                         One Maritime Plaza, Suite 1325
                         San Francisco, California 94111
                                 (415) 421-2132
                  (Name, Address and Telephone Number of Person
                Authorized to Receive Notices and Communications)

                                 April 10, 2000
             (Date of Event which Requires Filing of this Statement)

     If the filing  person has  previously  filed a statement on Schedule 13G to
report the  acquisition  that is the subject of this Schedule 13D, and is filing
this  schedule  because  of Rule  13d-1(e),  13d-1(f)  or  13d-1(g),  check  the
following box [ ].

          Note.  Schedules filed in paper format shall include a signed original
     and five copies of the schedule,  including all exhibits. See Rule 13d-7(b)
     for other parties to whom copies are to be sent.



                         (Continued on following pages)
                               Page 1 of 41 Pages

- -------------
     1 The  remainder  of this cover  page  shall be filled out for a  reporting
person's  initial  filing on this  form with  respect  to the  subject  class of
securities,  and for any subsequent amendment containing information which would
alter disclosures provided in a prior cover page.

     The  information  required on the remainder of this cover page shall not be
deemed to be "filed"  for the purpose of Section 18 of the  Securities  Exchange
Act of 1934 or otherwise  subject to the  liabilities of that section of the Act
but  shall be  subject  to all other  provisions  of the Act  (however,  see the
Notes).


<PAGE>


                                       13D
===============================
CUSIP No. 913004107
===============================
- ---------======================================================================
   1     NAMES OF REPORTING PERSONS
         I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

         Farallon Capital Partners, L.P.
- ---------======================================================================
   2     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                  (a) [   ]

                                                                  (b) [ X ]**
     **  The  reporting  persons  making  this  filing  hold  an  aggregate  of
         1,315,600  Shares,  which  is 3.9% of the  class  of  securities.
         The reporting  person on this cover page,  however,  is a beneficial
         owner only of the securities reported by it on this cover page.
- ---------======================================================================
   3     SEC USE ONLY

- ---------======================================================================
   4     SOURCE OF FUNDS*

         WC, OO
- ---------======================================================================
   5     CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
         TO ITEM 2(d) OR 2(e)
                                                                      [   ]
- ---------======================================================================
   6     CITIZENSHIP OR PLACE OF ORGANIZATION

         California
- ----------------------=========================================================
   NUMBER OF      7   SOLE VOTING POWER

    SHARES            -0-
                ------=========================================================
 BENEFICIALLY     8   SHARED VOTING POWER
   OWNED BY
                      266,300
                ------=========================================================
     EACH         9   SOLE DISPOSITIVE POWER

   REPORTING          -0-
                ------=========================================================
  PERSON WITH    10   SHARED DISPOSITIVE POWER

                      266,300
- ----------------------=========================================================
   11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

         266,300
- ---------======================================================================
   12    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
         CERTAIN SHARES*
                                                                      [   ]
- ---------======================================================================
   13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

         0.8%
- ---------======================================================================
   14    TYPE OF REPORTING PERSON*

         PN
- ---------======================================================================
                      *SEE INSTRUCTIONS BEFORE FILLING OUT!

                                  Page 2 of 41

<PAGE>


                                       13D
===============================
CUSIP No. 913004107
===============================

- ---------======================================================================
   1     NAMES OF REPORTING PERSONS
         I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

         Farallon Capital Institutional Partners, L.P.
- ---------======================================================================
   2     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                  (a) [   ]

                                                                  (b) [ X ]**
     **  The  reporting  persons  making  this  filing  hold  an  aggregate  of
         1,315,600  Shares,  which  is 3.9% of the  class  of  securities.
         The reporting  person on this cover page,  however,  is a beneficial
         owner only of the securities reported by it on this cover page.
- ---------======================================================================
   3     SEC USE ONLY

- ---------======================================================================
   4     SOURCE OF FUNDS*

         WC
- ---------======================================================================
   5     CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
         TO ITEM 2(d) OR 2(e)
                                                                      [   ]
- ---------======================================================================
   6     CITIZENSHIP OR PLACE OF ORGANIZATION

         California
- ----------------------=========================================================
   NUMBER OF      7   SOLE VOTING POWER

    SHARES            -0-
                ------=========================================================
 BENEFICIALLY     8   SHARED VOTING POWER
   OWNED BY
                      247,800
                ------=========================================================
     EACH         9   SOLE DISPOSITIVE POWER

   REPORTING          -0-
                ------=========================================================
  PERSON WITH    10   SHARED DISPOSITIVE POWER

                      247,800
- ----------------------=========================================================
   11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

         247,800
- ---------======================================================================
   12    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
         CERTAIN SHARES*
                                                                      [   ]
- ---------======================================================================
   13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

         0.7%
- ---------======================================================================
   14    TYPE OF REPORTING PERSON*

         PN
- ---------======================================================================
                      *SEE INSTRUCTIONS BEFORE FILLING OUT!

                                  Page 3 of 41

<PAGE>


                                       13D
===============================
CUSIP No. 913004107
===============================

- ---------======================================================================
   1     NAMES OF REPORTING PERSONS
         I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

         Farallon Capital Institutional Partners II, L.P.
- ---------======================================================================
   2     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                  (a) [   ]

                                                                  (b) [ X ]**
     **  The  reporting  persons  making  this  filing  hold  an  aggregate  of
         1,315,600  Shares,  which  is 3.9% of the  class  of  securities.
         The reporting  person on this cover page,  however,  is a beneficial
         owner only of the securities reported by it on this cover page.
- ---------======================================================================
   3     SEC USE ONLY

- ---------======================================================================
   4     SOURCE OF FUNDS*

         WC
- ---------======================================================================
   5     CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
         TO ITEM 2(d) OR 2(e)
                                                                      [   ]
- ---------======================================================================
   6     CITIZENSHIP OR PLACE OF ORGANIZATION

         California
- ----------------------=========================================================
   NUMBER OF      7   SOLE VOTING POWER

    SHARES            -0-
                ------=========================================================
 BENEFICIALLY     8   SHARED VOTING POWER
   OWNED BY
                      68,900
                ------=========================================================
     EACH         9   SOLE DISPOSITIVE POWER

   REPORTING          -0-
                ------=========================================================
  PERSON WITH    10   SHARED DISPOSITIVE POWER

                      68,900
- ----------------------=========================================================
   11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

         68,900
- ---------======================================================================
   12    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
         CERTAIN SHARES*
                                                                      [   ]
- ---------======================================================================
   13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

         0.2%
- ---------======================================================================
   14    TYPE OF REPORTING PERSON*

         PN
- ---------======================================================================
                      *SEE INSTRUCTIONS BEFORE FILLING OUT!

                                  Page 4 of 41

<PAGE>


                                       13D
===============================
CUSIP No. 913004107
===============================

- ---------======================================================================
   1     NAMES OF REPORTING PERSONS
         I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

         Farallon Capital Institutional Partners III, L.P.
- ---------======================================================================
   2     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                  (a) [   ]

                                                                  (b) [ X ]**
     **  The  reporting  persons  making  this  filing  hold  an  aggregate  of
         1,315,600  Shares,  which  is 3.9% of the  class  of  securities.
         The reporting  person on this cover page,  however,  is a beneficial
         owner only of the securities reported by it on this cover page.
- ---------======================================================================
   3     SEC USE ONLY

- ---------======================================================================
   4     SOURCE OF FUNDS*

         WC
- ---------======================================================================
   5     CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
         TO ITEM 2(d) OR 2(e)
                                                                      [   ]
- ---------======================================================================
   6     CITIZENSHIP OR PLACE OF ORGANIZATION

         Delaware
- ----------------------=========================================================
   NUMBER OF      7   SOLE VOTING POWER

    SHARES            -0-
                ------=========================================================
 BENEFICIALLY     8   SHARED VOTING POWER
   OWNED BY
                      66,800
                ------=========================================================
     EACH         9   SOLE DISPOSITIVE POWER

   REPORTING          -0-
                ------=========================================================
  PERSON WITH    10   SHARED DISPOSITIVE POWER

                      66,800
- ----------------------=========================================================
   11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

         66,800
- ---------======================================================================
   12    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
         CERTAIN SHARES*
                                                                      [   ]
- ---------======================================================================
   13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

         0.2%
- ---------======================================================================
   14    TYPE OF REPORTING PERSON*

         PN
- ---------======================================================================
                      *SEE INSTRUCTIONS BEFORE FILLING OUT!

                                  Page 5 of 41

<PAGE>


                                       13D
===============================
CUSIP No. 913004107
===============================

- ---------======================================================================
   1     NAMES OF REPORTING PERSONS
         I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

         Tinicum Partners, L.P.
- ---------======================================================================
   2     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                  (a) [   ]

                                                                  (b) [ X ]**
     **  The  reporting  persons  making  this  filing  hold  an  aggregate  of
         1,315,600  Shares,  which  is 3.9% of the  class  of  securities.
         The reporting  person on this cover page,  however,  is a beneficial
         owner only of the securities reported by it on this cover page.
- ---------======================================================================
   3     SEC USE ONLY

- ---------======================================================================
   4     SOURCE OF FUNDS*

         WC, OO
- ---------======================================================================
   5     CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
         TO ITEM 2(d) OR 2(e)
                                                                      [   ]
- ---------======================================================================
   6     CITIZENSHIP OR PLACE OF ORGANIZATION

         New York
- ----------------------=========================================================
   NUMBER OF      7   SOLE VOTING POWER

    SHARES            -0-
                ------=========================================================
 BENEFICIALLY     8   SHARED VOTING POWER
   OWNED BY
                      26,300
                ------=========================================================
     EACH         9   SOLE DISPOSITIVE POWER

   REPORTING          -0-
                ------=========================================================
  PERSON WITH    10   SHARED DISPOSITIVE POWER

                      26,300
- ----------------------=========================================================
   11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

         26,300
- ---------======================================================================
   12    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
         CERTAIN SHARES*
                                                                      [   ]
- ---------======================================================================
   13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

         0.1%
- ---------======================================================================
   14    TYPE OF REPORTING PERSON*

         PN
- ---------======================================================================
                      *SEE INSTRUCTIONS BEFORE FILLING OUT!

                                  Page 6 of 41

<PAGE>


                                       13D
===============================
CUSIP No. 913004107
===============================

- ---------======================================================================
   1     NAMES OF REPORTING PERSONS
         I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

         Farallon Capital Management, L.L.C.
- ---------======================================================================
   2     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                  (a) [   ]

                                                                  (b) [ X ]**
     **  The  reporting  persons  making  this  filing  hold  an  aggregate  of
         1,315,600  Shares,  which  is 3.9% of the  class  of  securities.
         The reporting  person  on  this  cover  page,  however,  may be
         deemed  a  beneficial  owner only of the securities  reported by it on
         this cover page.
- ---------======================================================================
   3     SEC USE ONLY

- ---------======================================================================
   4     SOURCE OF FUNDS*

         OO
- ---------======================================================================
   5     CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
         TO ITEM 2(d) OR 2(e)
                                                                      [   ]
- ---------======================================================================
   6     CITIZENSHIP OR PLACE OF ORGANIZATION

         Delaware
- ----------------------=========================================================
   NUMBER OF      7   SOLE VOTING POWER

    SHARES            -0-
                ------=========================================================
 BENEFICIALLY     8   SHARED VOTING POWER
   OWNED BY
                      639,500
                ------=========================================================
     EACH         9   SOLE DISPOSITIVE POWER

   REPORTING          -0-
                ------=========================================================
  PERSON WITH    10   SHARED DISPOSITIVE POWER

                      639,500
- ----------------------=========================================================
   11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

         639,500
- ---------======================================================================
   12    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
         CERTAIN SHARES*
                                                                      [   ]
- ---------======================================================================
   13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

         1.9 %
- ---------======================================================================
   14    TYPE OF REPORTING PERSON*

         IA, OO
- ---------======================================================================
                      *SEE INSTRUCTIONS BEFORE FILLING OUT!

                                  Page 7 of 41

<PAGE>


                                       13D
===============================
CUSIP No. 913004107
===============================

- ---------======================================================================
   1     NAMES OF REPORTING PERSONS
         I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

         Farallon Partners, L.L.C.
- ---------======================================================================
   2     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                  (a) [   ]

                                                                  (b) [ X ]**
     **  The  reporting  persons  making  this  filing  hold  an  aggregate  of
         1,315,600  Shares,  which  is 3.9% of the  class  of  securities.
         The reporting  person  on  this  cover  page,  however,  may be
         deemed  a  beneficial  owner only of the securities  reported by it on
         this cover page.
- ---------======================================================================
   3     SEC USE ONLY

- ---------======================================================================
   4     SOURCE OF FUNDS*

         AF
- ---------======================================================================
   5     CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
         TO ITEM 2(d) OR 2(e)
                                                                      [   ]
- ---------======================================================================
   6     CITIZENSHIP OR PLACE OF ORGANIZATION

         Delaware
- ----------------------=========================================================
   NUMBER OF      7   SOLE VOTING POWER

    SHARES            -0-
                ------=========================================================
 BENEFICIALLY     8   SHARED VOTING POWER
   OWNED BY
                      676,100
                ------=========================================================
     EACH         9   SOLE DISPOSITIVE POWER

   REPORTING          -0-
                ------=========================================================
  PERSON WITH    10   SHARED DISPOSITIVE POWER

                      676,100
- ----------------------=========================================================
   11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

         676,100
- ---------======================================================================
   12    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
         CERTAIN SHARES*
                                                                      [   ]
- ---------======================================================================
   13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

         2.0%
- ---------======================================================================
   14    TYPE OF REPORTING PERSON*

         OO
- ---------======================================================================
                      *SEE INSTRUCTIONS BEFORE FILLING OUT!

                                  Page 8 of 41

<PAGE>


                                       13D
===============================
CUSIP No. 913004107
===============================

- ---------======================================================================
   1     NAMES OF REPORTING PERSONS
         I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

         Enrique H. Boilini
- ---------======================================================================
   2     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                  (a) [   ]

                                                                  (b) [ X ]**
     **  The  reporting  persons  making  this  filing  hold  an  aggregate  of
         1,315,600  Shares,  which  is 3.9% of the  class  of  securities.
         The reporting  person  on  this  cover  page,  however,  may be
         deemed  a  beneficial  owner only of the securities  reported by it on
         this cover page.
- ---------======================================================================
   3     SEC USE ONLY

- ---------======================================================================
   4     SOURCE OF FUNDS*

         AF, OO
- ---------======================================================================
   5     CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
         TO ITEM 2(d) OR 2(e)
                                                                      [   ]
- ---------======================================================================
   6     CITIZENSHIP OR PLACE OF ORGANIZATION

         Argentina
- ----------------------=========================================================
   NUMBER OF      7   SOLE VOTING POWER

    SHARES            -0-
                ------=========================================================
 BENEFICIALLY     8   SHARED VOTING POWER
   OWNED BY
                      1,315,600
                ------=========================================================
     EACH         9   SOLE DISPOSITIVE POWER

   REPORTING          -0-
                ------=========================================================
  PERSON WITH    10   SHARED DISPOSITIVE POWER

                      1,315,600
- ----------------------=========================================================
   11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

         1,315,600
- ---------======================================================================
   12    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
         CERTAIN SHARES*
                                                                      [   ]
- ---------======================================================================
   13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

         3.9 %
- ---------======================================================================
   14    TYPE OF REPORTING PERSON*

         IN
- ---------======================================================================
                      *SEE INSTRUCTIONS BEFORE FILLING OUT!

                                  Page 9 of 41

<PAGE>


                                       13D
===============================
CUSIP No. 913004107
===============================

- ---------======================================================================
   1     NAMES OF REPORTING PERSONS
         I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

         David I. Cohen
- ---------======================================================================
   2     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                  (a) [   ]

                                                                  (b) [ X ]**
     **  The  reporting  persons  making  this  filing  hold  an  aggregate  of
         1,315,600  Shares,  which  is 3.9% of the  class  of  securities.
         The reporting  person  on  this  cover  page,  however,  may be
         deemed  a  beneficial  owner only of the securities  reported by it on
         this cover page.
- ---------======================================================================
   3     SEC USE ONLY

- ---------======================================================================
   4     SOURCE OF FUNDS*

         AF, OO
- ---------======================================================================
   5     CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
         TO ITEM 2(d) OR 2(e)
                                                                      [   ]
- ---------======================================================================
   6     CITIZENSHIP OR PLACE OF ORGANIZATION

         United States
- ----------------------=========================================================
   NUMBER OF      7   SOLE VOTING POWER

    SHARES            -0-
                ------=========================================================
 BENEFICIALLY     8   SHARED VOTING POWER
   OWNED BY
                      1,315,600
                ------=========================================================
     EACH         9   SOLE DISPOSITIVE POWER

   REPORTING          -0-
                ------=========================================================
  PERSON WITH    10   SHARED DISPOSITIVE POWER

                      1,315,600
- ----------------------=========================================================
   11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

         1,315,600
- ---------======================================================================
   12    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
         CERTAIN SHARES*
                                                                      [   ]
- ---------======================================================================
   13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

         3.9 %
- ---------======================================================================
   14    TYPE OF REPORTING PERSON*

         IN
- ---------======================================================================
                      *SEE INSTRUCTIONS BEFORE FILLING OUT!

                                 Page 10 of 41

<PAGE>


                                       13D
===============================
CUSIP No. 913004107
===============================

- ---------======================================================================
   1     NAMES OF REPORTING PERSONS
         I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

         Joseph F. Downes
- ---------======================================================================
   2     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                  (a) [   ]

                                                                  (b) [ X ]**
     **  The  reporting  persons  making  this  filing  hold  an  aggregate  of
         1,315,600  Shares,  which  is 3.9% of the  class  of  securities.
         The reporting  person  on  this  cover  page,  however,  may be
         deemed  a  beneficial  owner only of the securities  reported by it on
         this cover page.
- ---------======================================================================
   3     SEC USE ONLY

- ---------======================================================================
   4     SOURCE OF FUNDS*

         AF, OO
- ---------======================================================================
   5     CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
         TO ITEM 2(d) OR 2(e)
                                                                      [   ]
- ---------======================================================================
   6     CITIZENSHIP OR PLACE OF ORGANIZATION

         United States
- ----------------------=========================================================
   NUMBER OF      7   SOLE VOTING POWER

    SHARES            -0-
                ------=========================================================
 BENEFICIALLY     8   SHARED VOTING POWER
   OWNED BY
                      1,315,600
                ------=========================================================
     EACH         9   SOLE DISPOSITIVE POWER

   REPORTING          -0-
                ------=========================================================
  PERSON WITH    10   SHARED DISPOSITIVE POWER

                      1,315,600
- ----------------------=========================================================
   11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

         1,315,600
- ---------======================================================================
   12    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
         CERTAIN SHARES*
                                                                      [   ]
- ---------======================================================================
   13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

         3.9 %
- ---------======================================================================
   14    TYPE OF REPORTING PERSON*

         IN
- ---------======================================================================
                      *SEE INSTRUCTIONS BEFORE FILLING OUT!

                                 Page 11 of 41

<PAGE>


                                       13D
===============================
CUSIP No. 913004107
===============================

- ---------======================================================================
   1     NAMES OF REPORTING PERSONS
         I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

         William F. Duhamel
- ---------======================================================================
   2     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                  (a) [   ]

                                                                  (b) [ X ]**
     **  The  reporting  persons  making  this  filing  hold  an  aggregate  of
         1,315,600  Shares,  which  is 3.9% of the  class  of  securities.
         The reporting  person  on  this  cover  page,  however,  may be
         deemed  a  beneficial  owner only of the securities  reported by it on
         this cover page.
- ---------======================================================================
   3     SEC USE ONLY

- ---------======================================================================
   4     SOURCE OF FUNDS*

         AF, OO
- ---------======================================================================
   5     CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
         TO ITEM 2(d) OR 2(e)
                                                                      [   ]
- ---------======================================================================
   6     CITIZENSHIP OR PLACE OF ORGANIZATION

         United States
- ----------------------=========================================================
   NUMBER OF      7   SOLE VOTING POWER

    SHARES            -0-
                ------=========================================================
 BENEFICIALLY     8   SHARED VOTING POWER
   OWNED BY
                      1,315,600
                ------=========================================================
     EACH         9   SOLE DISPOSITIVE POWER

   REPORTING          -0-
                ------=========================================================
  PERSON WITH    10   SHARED DISPOSITIVE POWER

                      1,315,600
- ----------------------=========================================================
   11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

         1,315,600
- ---------======================================================================
   12    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
         CERTAIN SHARES*
                                                                      [   ]
- ---------======================================================================
   13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

         3.9%
- ---------======================================================================
   14    TYPE OF REPORTING PERSON*

         IN
- ---------======================================================================
                      *SEE INSTRUCTIONS BEFORE FILLING OUT!

                                 Page 12 of 41

<PAGE>


                                       13D
===============================
CUSIP No. 913004107
===============================

- ---------======================================================================
   1     NAMES OF REPORTING PERSONS
         I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

         Fleur E. Fairman
- ---------======================================================================
   2     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                  (a) [   ]

                                                                  (b) [ X ]**
     **  The  reporting  persons  making  this  filing  hold  an  aggregate  of
         1,315,600  Shares,  which  is 3.9% of the  class  of  securities.
         The reporting  person  on  this  cover  page,  however,  may be
         deemed  a  beneficial  owner only of the securities  reported by it on
         this cover page.
- ---------======================================================================
   3     SEC USE ONLY

- ---------======================================================================
   4     SOURCE OF FUNDS*

         AF
- ---------======================================================================
   5     CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
         TO ITEM 2(d) OR 2(e)
                                                                      [   ]
- ---------======================================================================
   6     CITIZENSHIP OR PLACE OF ORGANIZATION

         United States
- ----------------------=========================================================
   NUMBER OF      7   SOLE VOTING POWER

    SHARES            -0-
                ------=========================================================
 BENEFICIALLY     8   SHARED VOTING POWER
   OWNED BY
                      676,100
                ------=========================================================
     EACH         9   SOLE DISPOSITIVE POWER

   REPORTING          -0-
                ------=========================================================
  PERSON WITH    10   SHARED DISPOSITIVE POWER

                      676,100
- ----------------------=========================================================
   11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

         676,100
- ---------======================================================================
   12    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
         CERTAIN SHARES*
                                                                      [   ]
- ---------======================================================================
   13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

         2.0 %
- ---------======================================================================
   14    TYPE OF REPORTING PERSON*

         IN
- ---------======================================================================
                      *SEE INSTRUCTIONS BEFORE FILLING OUT!

                                 Page 13 of 41

<PAGE>


                                       13D
===============================
CUSIP No. 913004107
===============================

- ---------======================================================================
   1     NAMES OF REPORTING PERSONS
         I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

         Jason M. Fish
- ---------======================================================================
   2     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                  (a) [   ]

                                                                  (b) [ X ]**
     **  The  reporting  persons  making  this  filing  hold  an  aggregate  of
         1,315,600  Shares,  which  is 3.9% of the  class  of  securities.
         The reporting  person  on  this  cover  page,  however,  may be
         deemed  a  beneficial  owner only of the securities  reported by it on
         this cover page.
- ---------======================================================================
   3     SEC USE ONLY

- ---------======================================================================
   4     SOURCE OF FUNDS*

         AF, OO
- ---------======================================================================
   5     CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
         TO ITEM 2(d) OR 2(e)
                                                                      [   ]
- ---------======================================================================
   6     CITIZENSHIP OR PLACE OF ORGANIZATION

         United States
- ----------------------=========================================================
   NUMBER OF      7   SOLE VOTING POWER

    SHARES            -0-
                ------=========================================================
 BENEFICIALLY     8   SHARED VOTING POWER
   OWNED BY
                      1,315,600
                ------=========================================================
     EACH         9   SOLE DISPOSITIVE POWER

   REPORTING          -0-
                ------=========================================================
  PERSON WITH    10   SHARED DISPOSITIVE POWER

                      1,315,600
- ----------------------=========================================================
   11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

         1,315,600
- ---------======================================================================
   12    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
         CERTAIN SHARES*
                                                                      [   ]
- ---------======================================================================
   13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

         3.9 %
- ---------======================================================================
   14    TYPE OF REPORTING PERSON*

         IN
- ---------======================================================================
                      *SEE INSTRUCTIONS BEFORE FILLING OUT!

                                 Page 14 of 41

<PAGE>


                                       13D
===============================
CUSIP No. 913004107
===============================

- ---------======================================================================
   1     NAMES OF REPORTING PERSONS
         I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

         Andrew B. Fremder
- ---------======================================================================
   2     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                  (a) [   ]

                                                                  (b) [ X ]**
     **  The  reporting  persons  making  this  filing  hold  an  aggregate  of
         1,315,600  Shares,  which  is 3.9% of the  class  of  securities.
         The reporting  person  on  this  cover  page,  however,  may be
         deemed  a  beneficial  owner only of the securities  reported by it on
         this cover page.
- ---------======================================================================
   3     SEC USE ONLY

- ---------======================================================================
   4     SOURCE OF FUNDS*

         AF, OO
- ---------======================================================================
   5     CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
         TO ITEM 2(d) OR 2(e)
                                                                      [   ]
- ---------======================================================================
   6     CITIZENSHIP OR PLACE OF ORGANIZATION

         United States
- ----------------------=========================================================
   NUMBER OF      7   SOLE VOTING POWER

    SHARES            -0-
                ------=========================================================
 BENEFICIALLY     8   SHARED VOTING POWER
   OWNED BY
                      1,315,600
                ------=========================================================
     EACH         9   SOLE DISPOSITIVE POWER

   REPORTING          -0-
                ------=========================================================
  PERSON WITH    10   SHARED DISPOSITIVE POWER

                      1,315,600
- ----------------------=========================================================
   11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

         1,315,600
- ---------======================================================================
   12    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
         CERTAIN SHARES*
                                                                      [   ]
- ---------======================================================================
   13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

         3.9 %
- ---------======================================================================
   14    TYPE OF REPORTING PERSON*

         IN
- ---------======================================================================
                      *SEE INSTRUCTIONS BEFORE FILLING OUT!

                                 Page 15 of 41

<PAGE>


                                       13D
===============================
CUSIP No. 913004107
===============================

- ---------======================================================================
   1     NAMES OF REPORTING PERSONS
         I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

         Richard B. Fried
- ---------======================================================================
   2     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                  (a) [   ]

                                                                  (b) [ X ]**
     **  The  reporting  persons  making  this  filing  hold  an  aggregate  of
         1,315,600  Shares,  which  is 3.9% of the  class  of  securities.
         The reporting  person  on  this  cover  page,  however,  may be
         deemed  a  beneficial  owner only of the securities  reported by it on
         this cover page.
- ---------======================================================================
   3     SEC USE ONLY

- ---------======================================================================
   4     SOURCE OF FUNDS*

         AF, OO
- ---------======================================================================
   5     CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
         TO ITEM 2(d) OR 2(e)
                                                                      [   ]
- ---------======================================================================
   6     CITIZENSHIP OR PLACE OF ORGANIZATION

         United States
- ----------------------=========================================================
   NUMBER OF      7   SOLE VOTING POWER

    SHARES            -0-
                ------=========================================================
 BENEFICIALLY     8   SHARED VOTING POWER
   OWNED BY
                      1,315,600
                ------=========================================================
     EACH         9   SOLE DISPOSITIVE POWER

   REPORTING          -0-
                ------=========================================================
  PERSON WITH    10   SHARED DISPOSITIVE POWER

                      1,315,600
- ----------------------=========================================================
   11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

         1,315,600
- ---------======================================================================
   12    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
         CERTAIN SHARES*
                                                                      [   ]
- ---------======================================================================
   13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

         3.9 %
- ---------======================================================================
   14    TYPE OF REPORTING PERSON*

         IN
- ---------======================================================================
                      *SEE INSTRUCTIONS BEFORE FILLING OUT!

                                 Page 16 of 41

<PAGE>


                                       13D
===============================
CUSIP No. 913004107
===============================

- ---------======================================================================
   1     NAMES OF REPORTING PERSONS
         I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

         William F. Mellin
- ---------======================================================================
   2     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                  (a) [   ]

                                                                  (b) [ X ]**
     **  The  reporting  persons  making  this  filing  hold  an  aggregate  of
         1,315,600  Shares,  which  is 3.9% of the  class  of  securities.
         The reporting  person  on  this  cover  page,  however,  may be
         deemed  a  beneficial  owner only of the securities  reported by it on
         this cover page.
- ---------======================================================================
   3     SEC USE ONLY

- ---------======================================================================
   4     SOURCE OF FUNDS*

         AF, OO
- ---------======================================================================
   5     CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
         TO ITEM 2(d) OR 2(e)
                                                                      [   ]
- ---------======================================================================
   6     CITIZENSHIP OR PLACE OF ORGANIZATION

         United States
- ----------------------=========================================================
   NUMBER OF      7   SOLE VOTING POWER

    SHARES            -0-
                ------=========================================================
 BENEFICIALLY     8   SHARED VOTING POWER
   OWNED BY
                      1,315,600
                ------=========================================================
     EACH         9   SOLE DISPOSITIVE POWER

   REPORTING          -0-
                ------=========================================================
  PERSON WITH    10   SHARED DISPOSITIVE POWER

                      1,315,600
- ----------------------=========================================================
   11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

         1,315,600
- ---------======================================================================
   12    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
         CERTAIN SHARES*
                                                                      [   ]
- ---------======================================================================
   13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

         3.9 %
- ---------======================================================================
   14    TYPE OF REPORTING PERSON*

         IN
- ---------======================================================================
                      *SEE INSTRUCTIONS BEFORE FILLING OUT!

                                 Page 17 of 41

<PAGE>


                                       13D
===============================
CUSIP No. 913004107
===============================

- ---------======================================================================
   1     NAMES OF REPORTING PERSONS
         I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

         Stephen L. Millham
- ---------======================================================================
   2     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                  (a) [   ]

                                                                  (b) [ X ]**
     **  The  reporting  persons  making  this  filing  hold  an  aggregate  of
         1,315,600  Shares,  which  is 3.9% of the  class  of  securities.
         The reporting  person  on  this  cover  page,  however,  may be
         deemed  a  beneficial  owner only of the securities  reported by it on
         this cover page.
- ---------======================================================================
   3     SEC USE ONLY

- ---------======================================================================
   4     SOURCE OF FUNDS*

         AF, OO
- ---------======================================================================
   5     CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
         TO ITEM 2(d) OR 2(e)
                                                                      [   ]
- ---------======================================================================
   6     CITIZENSHIP OR PLACE OF ORGANIZATION

         United States
- ----------------------=========================================================
   NUMBER OF      7   SOLE VOTING POWER

    SHARES            -0-
                ------=========================================================
 BENEFICIALLY     8   SHARED VOTING POWER
   OWNED BY
                      1,315,600
                ------=========================================================
     EACH         9   SOLE DISPOSITIVE POWER

   REPORTING          -0-
                ------=========================================================
  PERSON WITH    10   SHARED DISPOSITIVE POWER

                      1,315,600
- ----------------------=========================================================
   11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

         1,315,600
- ---------======================================================================
   12    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
         CERTAIN SHARES*
                                                                      [   ]
- ---------======================================================================
   13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

         3.9 %
- ---------======================================================================
   14    TYPE OF REPORTING PERSON*

         IN
- ---------======================================================================
                      *SEE INSTRUCTIONS BEFORE FILLING OUT!

                                 Page 18 of 41

<PAGE>


                                       13D
===============================
CUSIP No. 913004107
===============================

- ---------======================================================================
   1     NAMES OF REPORTING PERSONS
         I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

         Meridee A. Moore
- ---------======================================================================
   2     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                  (a) [   ]

                                                                  (b) [ X ]**
     **  The  reporting  persons  making  this  filing  hold  an  aggregate  of
         1,315,600  Shares,  which  is 3.9% of the  class  of  securities.
         The reporting  person  on  this  cover  page,  however,  may be
         deemed  a  beneficial  owner only of the securities  reported by it on
         this cover page.
- ---------======================================================================
   3     SEC USE ONLY

- ---------======================================================================
   4     SOURCE OF FUNDS*

         AF, OO
- ---------======================================================================
   5     CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
         TO ITEM 2(d) OR 2(e)
                                                                      [   ]
- ---------======================================================================
   6     CITIZENSHIP OR PLACE OF ORGANIZATION
         United States
- ----------------------=========================================================
   NUMBER OF      7   SOLE VOTING POWER

    SHARES            -0-
                ------=========================================================
 BENEFICIALLY     8   SHARED VOTING POWER
   OWNED BY
                      1,315,600
                ------=========================================================
     EACH         9   SOLE DISPOSITIVE POWER

   REPORTING          -0-
                ------=========================================================
  PERSON WITH    10   SHARED DISPOSITIVE POWER

                      1,315,600
- ----------------------=========================================================
   11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

         1,315,600
- ---------======================================================================
   12    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
         CERTAIN SHARES*
                                                                      [   ]
- ---------======================================================================
   13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

         3.9 %
- ---------======================================================================
   14    TYPE OF REPORTING PERSON*

         IN
- ---------======================================================================
                      *SEE INSTRUCTIONS BEFORE FILLING OUT!

                                 Page 19 of 41

<PAGE>


                                       13D
===============================
CUSIP No. 913004107
===============================

- ---------======================================================================
   1     NAMES OF REPORTING PERSONS
         I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

         Thomas F. Steyer
- ---------======================================================================
   2     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                  (a) [   ]

                                                                  (b) [ X ]**
     **  The  reporting  persons  making  this  filing  hold  an  aggregate  of
         1,315,600  Shares,  which  is 3.9% of the  class  of  securities.
         The reporting  person  on  this  cover  page,  however,  may be
         deemed  a  beneficial  owner only of the securities  reported by it on
         this cover page.
- ---------======================================================================
   3     SEC USE ONLY

- ---------======================================================================
   4     SOURCE OF FUNDS*

         AF, OO
- ---------======================================================================
   5     CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
         TO ITEM 2(d) OR 2(e)
                                                                      [   ]
- ---------======================================================================
   6     CITIZENSHIP OR PLACE OF ORGANIZATION
         United States
- ----------------------=========================================================
   NUMBER OF      7   SOLE VOTING POWER

    SHARES            -0-
                ------=========================================================
 BENEFICIALLY     8   SHARED VOTING POWER
   OWNED BY
                      1,315,600
                ------=========================================================
     EACH         9   SOLE DISPOSITIVE POWER

   REPORTING          -0-
                ------=========================================================
  PERSON WITH    10   SHARED DISPOSITIVE POWER

                      1,315,600
- ----------------------=========================================================
   11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

         1,315,600
- ---------======================================================================
   12    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
         CERTAIN SHARES*
                                                                      [   ]
- ---------======================================================================
   13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

         3.9 %
- ---------======================================================================
   14    TYPE OF REPORTING PERSON*

         IN
- ---------======================================================================
                      *SEE INSTRUCTIONS BEFORE FILLING OUT!

                                 Page 20 of 41

<PAGE>


                                       13D
===============================
CUSIP No. 913004107
===============================

- ---------======================================================================
   1     NAMES OF REPORTING PERSONS
         I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

         Mark C. Wehrly
- ---------======================================================================
   2     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                  (a) [   ]

                                                                  (b) [ X ]**
     **  The  reporting  persons  making  this  filing  hold  an  aggregate  of
         1,315,600  Shares,  which  is 3.9% of the  class  of  securities.
         The reporting  person  on  this  cover  page,  however,  may be
         deemed  a  beneficial  owner only of the securities  reported by it on
         this cover page.
- ---------======================================================================
   3     SEC USE ONLY

- ---------======================================================================
   4     SOURCE OF FUNDS*

         AF, OO
- ---------======================================================================
   5     CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
         TO ITEM 2(d) OR 2(e)
                                                                      [   ]
- ---------======================================================================
   6     CITIZENSHIP OR PLACE OF ORGANIZATION
         United States
- ----------------------=========================================================
   NUMBER OF      7   SOLE VOTING POWER

    SHARES            -0-
                ------=========================================================
 BENEFICIALLY     8   SHARED VOTING POWER
   OWNED BY
                      1,315,600
                ------=========================================================
     EACH         9   SOLE DISPOSITIVE POWER

   REPORTING          -0-
                ------=========================================================
  PERSON WITH    10   SHARED DISPOSITIVE POWER

                      1,315,600
- ----------------------=========================================================
   11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

         1,315,600
- ---------======================================================================
   12    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
         CERTAIN SHARES*
                                                                      [   ]
- ---------======================================================================
   13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

         3.9 %
- ---------======================================================================
   14    TYPE OF REPORTING PERSON*

         IN
- ---------======================================================================
                      *SEE INSTRUCTIONS BEFORE FILLING OUT!

                                 Page 21 of 41

<PAGE>


This Amendment No. 1 to Schedule 13D amends the Schedule 13D initially  filed on
November 29, 1999  (collectively,  with all  amendments  thereto,  the "Schedule
13D").

Item 2. Identity And Background

     Item 2 of the  Schedule  13D is amended  and  restated  in its  entirety as
follows:

      (a) This statement is filed by the entities and persons listed below,  all
of whom together are referred to herein as the "Reporting Persons."

     The Partnerships

          (i)  Farallon Capital Partners, L.P., a California limited partnership
               ("FCP"), with respect to the Shares held by it;

          (ii) Farallon  Capital  Institutional  Partners,  L.P.,  a  California
               limited partnership ("FCIP"),  with respect to the Shares held by
               it;

          (iii)Farallon  Capital  Institutional  Partners II, L.P., a California
               limited  partnership ("FCIP II"), with respect to the Shares held
               by it;

          (iv) Farallon  Capital  Institutional  Partners III,  L.P., a Delaware
               limited partnership ("FCIP III"), with respect to the Shares held
               by it; and

          (v)  Tinicum   Partners,   L.P.,  a  New  York   limited   partnership
               ("Tinicum"), with respect to the Shares held by it;


     FCP, FCIP, FCIP II, FCIP III and Tinicum are together referred to herein as
the "Partnerships."

                                 Page 22 of 41

<PAGE>


     The Management Company

          (vi) Farallon Capital Management, L.L.C., a Delaware limited liability
               company (the  "Management  Company"),  with respect to the Shares
               held by certain accounts  managed by the Management  Company (the
               "Managed Accounts").2

     The General Partner Of The Partnerships

          (vii)Farallon  Partners,  L.L.C., a Delaware limited liability company
               which is the  general  partner of each of the  Partnerships  (the
               "General  Partner"),  with  respect to the Shares held by each of
               the Partnerships.

     The Managing Members Of The General Partner And The Management Company

          (viii) The following  twelve persons who are managing  members of both
               the General Partner and the Management  Company,  with respect to
               the Shares held by the  Partnerships  and the  Managed  Accounts:
               Enrique H. Boilini ("Boilini"),  David I. Cohen ("Cohen"), Joseph
               F. Downes ("Downes"),  William F. Duhamel  ("Duhamel"),  Jason M.
               Fish ("Fish"),  Andrew B. Fremder  ("Fremder"),  Richard B. Fried
               ("Fried"),  William F.  Mellin  ("Mellin"),  Stephen  L.  Millham
               ("Millham"),  Meridee A.  Moore  ("Moore")  and Thomas F.  Steyer
               ("Steyer") and Mark C. Wehrly ("Wehrly") and;

          (ix) the thirteenth  managing member of the General Partner,  Fleur E.
               Fairman  ("Fairman"),  with  respect  to the  Shares  held by the
               Partnerships.

     Boilini,  Cohen, Downes,  Duhamel,  Fairman, Fish, Fremder,  Fried, Mellin,
Millham,  Moore,  Steyer  and  Wehrly  are  together  referred  to herein as the
"Individual Reporting Persons."

     (b) The address of the principal business and principal office of (i) the
Partnerships,  the General  Partner and the  Management  Company is One Maritime
Plaza,  Suite  1325,  San  Francisco,  California  94111  and  (ii)  each of the
Individual Reporting Persons is set forth in Annex 1 hereto.

     (c) The principal business of each of the Partnerships is that of a private
investment  fund  engaging in the purchase and sale of  investments  for its own
account. The principal business of the


- ---------------
     2 Of the Shares reported by the Management Company on behalf of the Managed
Accounts,  10,700  Shares  (equal to  approximately  0.03% of the  total  Shares
currently  outstanding) are held by The Absolute Return Fund of The Common Fund,
a  non-profit  corporation  whose  principal  address  is 450  Post  Road  East,
Westport, Connecticut 06881.

                                 Page 23 of 41

<PAGE>


General  Partner  is to act as the  general  partner  of the  Partnerships.  The
principal business of the Management Company is that of a registered  investment
adviser.  The principal business of each of the Individual  Reporting Persons is
set forth in Annex 1 hereto.

     (d) None of the Partnerships,  the Management Company,  the General Partner
or any of the Individual Reporting Persons has, during the last five years, been
convicted in a criminal  proceeding  (excluding  traffic  violations  or similar
misdemeanors).

     (e) None of the Partnerships,  the Management Company,  the General Partner
or any of the Individual Reporting Persons has, during the last five years, been
party to a civil  proceeding of a judicial or  administrative  body of competent
jurisdiction and as a result of such proceeding was or is subject to a judgment,
decree  or final  order  enjoining  future  violations  of,  or  prohibiting  or
mandating activities subject to, federal or state securities laws or finding any
violation with respect to such laws.

     (f) The  citizenship of each of the  Partnerships,  the General Partner and
the  Management  Company is set forth above.  Each of the  Individual  Reporting
Persons is a United  States  citizen  other than  Enrique H.  Boilini  who is an
Argentinean citizen.

      The other  information  required  by Item 2 relating to the  identity  and
background  of the  Reporting  Persons  is set forth in Annex 1 hereto.

Item 3. Source And Amount Of Funds And Other Consideration.

     Item 3 of the Schedule 13D is amended and supplemented by the following:

     The net investment cost (including  commissions) for the Shares acquired by
     each of the Partnerships and Managed Accounts since the filing of the prior
     Schedule 13D is set forth below:

                                 Page 24 of 41

<PAGE>


      Entity           Shares Acquired           Approximate Net Investment Cost
      ----------       ---------------           -------------------------------
      FCP                 41,800                        $1,053,301.86
      FCIP                33,800                          $847,827.17
      FCIP II              6,500                          $163,944.55
      FCIP III            11,100                          $282,210.22
      Tinicum              3,200                           $81,006.66
      Managed
        Accounts          77,300                        $1,953,714.80

     The consideration  for such acquisitions was obtained as follows:  (i) with
respect to FCIP, FCIP II and FCIP III, from working  capital;  (ii) with respect
to FCP and Tinicum,  from working  capital,  and/or from borrowings  pursuant to
margin  accounts  maintained  in the  ordinary  course of business  by FCP,  and
Tinicum at Goldman, Sachs & Co.; and (iii) with respect to the Managed Accounts,
from the working capital of each Managed Account and/or from borrowings pursuant
to margin accounts  maintained in the ordinary course of business by some of the
Managed Accounts at Goldman,  Sachs & Co. FCP, Tinicum,  and some of the Managed
Accounts hold certain securities in their respective margin accounts at Goldman,
Sachs & Co., and the accounts may from time to time have debit  balances.  It is
not possible to determine the amount of borrowings,  if any, used to acquire the
Shares.

Item 5. Interest In Securities Of The Issuer.

     Item 5 of the  Schedule  13D is amended  and  restated  in its  entirety as
follows:

(a) The Partnerships

          (a),(b) The  information  set forth in Rows 7 through  13 of the cover
               page  hereto  for each  Partnership  is  incorporated  herein  by
               reference for each such  Partnership.  The percentage  amount set
               forth in Row 13 of each  cover  page  filed  herewith  as well as
               Footnote  Two  hereto is  calculated  based  upon the  34,032,047
               Shares outstanding as of March 1, 2000 as reported by the Company
               in its Annual  Report on Form 10-K for the period ended  December
               31, 1999 filed with the  Securities  and Exchange  Commission  on
               March 8, 2000.



                                 Page 25 of 41

<PAGE>


          (c)  The trade dates, number of Shares purchased or sold and the price
               per Shares (including commissions) for all purchases and sales of
               the Shares by the  Partnerships in the past 60 days are set forth
               on Schedules A-E hereto and are incorporated herein by reference.
               All of such transactions were open-market transactions.

          (d)  The  General  Partner  has the power to direct the affairs of the
               Partnerships,  including the  disposition  of the proceeds of the
               sale of the Shares. The Individual Reporting Persons are managing
               members of the General Partner.

          (e)  As of April 10, 2000, none of the  Partnerships  are deemed to be
               the beneficial holder of more than 5% of the Shares.

(b) The Management Company

          (a),(b) The  information  set forth in Rows 7 through  13 of the cover
               page hereto for the Management Company is incorporated  herein by
               reference.

          (c)  The trade dates, number of Shares purchased or sold and the price
               per Shares (including commissions) for all purchases and sales of
               the Shares by the  Management  Company  on behalf of the  Managed
               Accounts  in the past 60 days are set forth on  Schedule F hereto
               and  are   incorporated   herein  by   reference.   All  of  such
               transactions were open-market transactions.

          (d)  The Management Company,  as an investment adviser,  has the power
               to direct  the  disposition  of the  proceeds  of the sale of the
               Shares held by the Managed  Accounts.  The  Individual  Reporting
               Persons other than Fairman are managing members of the Management
               Company.

          (e)  As of April 10, 2000, the Management  Company is not deemed to be
               the beneficial holder of more than 5% of the Shares.

(c) The General Partner

          (a),(b) The  information  set forth in Rows 7 through  13 of the cover
               page hereto for the  General  Partner is  incorporated  herein by
               reference.

          (c)  None.

          (d)  The  General  Partner  has the power to direct the affairs of the
               Partnerships,  including the  disposition  of the proceeds of the
               sale of the Shares. The Individual Reporting Persons are managing
               members of the General Partner.

                                 Page 26 of 41

<PAGE>


          (e)  As of April 10, 2000, the General Partner is not deemed to be the
               beneficial holder of more than 5% of the Shares.

(d) The Individual Reporting Persons

          (a),(b) The  information  set forth in Rows 7 through  13 of the cover
               page hereto for each Individual  Reporting Person is incorporated
               herein by reference for each such Individual Reporting Person.

          (c)  None.

          (d)  The  General  Partner  has the power to direct the affairs of the
               Partnerships,  including the  disposition  of the proceeds of the
               sale of the Shares.  The  Management  Company,  as an  investment
               adviser,  has the power to direct the disposition of the proceeds
               of the  sale of the  Shares  held by the  Managed  Accounts.  The
               Individual  Reporting Persons are managing members of the General
               Partner.  The Individual Reporting Persons other than Fairman are
               managing members of the Management Company.

          (e)  As of April 10, 2000,  none of the Individual  Reporting  Persons
               are  deemed  to be the  beneficial  holder of more than 5% of the
               Shares.

     The Shares reported hereby for the  Partnerships  are owned directly by the
Partnerships  and those  reported  by the  Management  Company  on behalf of the
Managed  Accounts  are owned  directly  by the  Managed  Accounts.  The  General
Partner,  as  general  partner  to the  Partnerships,  may be  deemed  to be the
beneficial  owner of all such Shares owned by the  Partnerships.  The Management
Company, as investment adviser to the Managed Accounts,  may be deemed to be the
beneficial  owner of all such Shares owned by the Managed  Accounts.  The twelve
Individual  Reporting  Persons  who are  managing  members  of both the  General
Partner and the Management Company may each be deemed to be the beneficial owner
of all such Shares held by the Partnerships and the Managed  Accounts.  Fairman,
as a  managing  member  of only the  General  Partner,  may be  deemed to be the
beneficial  owner  of all  such  Shares  held by the  Partnerships.  Each of the
Management  Company,  the General Partner and the Individual  Reporting  Persons
hereby disclaims any beneficial ownership of any such Shares.

Item 7. Materials To Be Filed As Exhibits.

     There is filed  herewith as Exhibit 1 a written  agreement  relating to the
filing of joint acquisition statements as required by Rule 13d-1(f)(1) under the
Securities Exchange Act of 1934, as amended.

                                 Page 27 0f 41

<PAGE>


                                   SIGNATURES

     After reasonable  inquiry and to the best of our knowledge and belief,  the
undersigned  certify that the  information  set forth in this statement is true,
complete and correct.

Dated: April 14, 2000

               /S/ Thomas F. Steyer
               ----------------------------------------
               FARALLON PARTNERS,  L.L.C.,
               on its own behalf and as General Partner of
               FARALLON CAPITAL PARTNERS, L.P.,
               FARALLON CAPITAL INSTITUTIONAL PARTNERS, L.P.,
               FARALLON CAPITAL INSTITUTIONALPARTNERS II, L.P.,
               FARALLON CAPITAL  INSTITUTIONAL  PARTNERS III, L.P.,
               And TINICUM PARTNERS, L.P.
               By Thomas F. Steyer,
               Senior Managing Member

               /S/ Thomas F. Steyer
               ----------------------------------------
               FARALLON CAPITAL MANAGEMENT, L.L.C.,
               By Thomas F. Steyer,
               Senior Managing Member

               /S/ Thomas F. Steyer
               ----------------------------------------
               Thomas F. Steyer, individually and as attorney-in-fact
               for each of Enrique H. Boilini, David I. Cohen, Joseph F. Downes,
               William F. Duhamel, Fleur E. Fairman, Jason M. Fish,
               Andrew B. Fremder, Richard B. Fried, William F. Mellin,
               Stephen L. Millham, Meridee A. Moore and Mark C. Wehrly.

     The Powers of Attorney,  each executed by Boilini,  Cohen, Downes, Fairman,
Fish,  Fremder,  Mellin,  Millham and Moore authorizing  Steyer to sign and file
this Schedule 13D on each person's behalf, which were filed with Amendment No. 1
to the  Schedule  13D filed  with the  Securities  and  Exchange  Commission  on
September 26, 1997, by such  Reporting  Persons with respect to the Common Stock
of Sphere Drake Holdings  Limited,  are hereby  incorporated  by reference.  The
Powers of Attorney executed by Duhamel and Fried authorizing  Steyer to sign and
file this Schedule 13D on each person's behalf,  which were filed with Amendment
No. 1 to the Schedule 13G filed with the Securities  and Exchange  Commission on
January 13, 1999, by such Reporting Persons with respect to the Callable Class A
Common  Shares  of  CliniChem  Development  Inc.,  are  hereby  incorporated  by
reference. The Power of Attorney executed by

                                 Page 28 of 41

<PAGE>


Mark C.  Wehrly  authorizing  Steyer to sign and file this  Schedule  13D on his
behalf,  which was filed with Amendment No. 2 to the Schedule 13D filed with the
Securities and Exchange Commission on January 10, 2000, by such Reporting Person
with respect to the Common Shares of Axogen Limited,  is hereby  incorporated by
reference.










                                 Page 29 of 41

<PAGE>


                                                                         ANNEX 1

     Set forth  below with  respect to the  Management  Company  and the General
Partner is the  following  information:  (a) name;  (b) address;  (c)  principal
business;  (d) state of  organization;  and (e) controlling  persons.  Set forth
below with respect to each  managing  member of the  Management  Company and the
General Partner is the following:  (a) name; (b) business address; (c) principal
occupation; and (d) citizenship.

1. The Management Company

      (a)   Farallon Capital Management, L.L.C.
      (b)   One Maritime Plaza, Suite 1325
            San Francisco, California  94111
      (c)   Serves as investment adviser to various managed accounts
      (d)   Delaware limited liability company
      (e)   Managing  Members:  Thomas  F.  Steyer,  Senior  Managing  Member;
            Enrique H. Boilini,  David I. Cohen, Joseph F. Downes,  William F.
            Duhamel,  Jason M. Fish,  Andrew B.  Fremder,  Richard  B.  Fried,
            William F. Mellin,  Stephen L.  Millham  Meridee A. Moore and Mark
            C. Wehrly, Managing Members.

2.   The General Partner

      (a)   Farallon Partners, L.L.C.
      (b)   c/o Farallon Capital Management, L.L.C.
            One Maritime Plaza, Suite 1325
            San Francisco, California  94111
      (c)   Serves as general partner to investment partnerships
      (d)   Delaware limited liability company
      (e)   Managing  Members:  Thomas  F.  Steyer,  Senior  Managing  Member;
            Enrique H. Boilini,  David I. Cohen, Joseph F. Downes,  William F.
            Duhamel,  Fleur E.  Fairman,  Jason M.  Fish,  Andrew B.  Fremder,
            Richard B. Fried,  William F. Mellin,  Stephen L. Millham  Meridee
            A. Moore and Mark C. Wehrly, Managing Members.

3.    The Individual Reporting Persons

     Except as stated  below,  each of the  Individual  Reporting  Persons  is a
     United  States  citizen  whose  business  address is c/o  Farallon  Capital
     Management,   L.L.C.,  One  Maritime  Plaza,  Suite  1325,  San  Francisco,
     California  94111.  Enrique H.  Boilini  is an  Argentinean  citizen  whose
     business address is c/o Farallon Capital Management,  L.L.C., 75 Holly Hill
     Lane,Greenwich,  Connecticut  06830. The principal  occupation of Thomas F.
     Steyer is serving as senior managing  member of the Management  Company and
     the General  Partner.  The principal  occupation of Fairman is serving as a
     managing member of the General

                                 Page 30 of 41

<PAGE>


     Partner. The principal occupation of each other Individual Reporting Person
     is serving  as a managing  member of both the  Management  Company  and the
     General Partner.






                                 Page 31 of 41

<PAGE>


                                   SCHEDULE A

                         FARALLON CAPITAL PARTNERS, L.P.


                                  NO. OF SHARES
                               PURCHASED (P) PRICE
       TRADE DATE                 OR SOLD (S)            PER SHARE
       ----------              -------------------       ---------

        02-18-00                   1,700 (P)              $25.77
        02-22-00                   1,100 (P)              $25.56
        02-23-00                   1,200 (P)              $25.49
        02-24-00                   2,600 (P)              $25.52
        02-25-00                   3,200 (P)              $25.61
        02-29-00                   2,400 (P)              $26.01
        03-07-00                  13,600 (P)              $25.66
        03-08-00                     200 (P)              $25.87
        03-08-00                   7,300 (P)              $25.92
        03-20-00                   1,000 (S)              $32.54
        03-20-00                   1,000 (S)              $32.54
        03-20-00                   5,000 (S)              $32.54
        03-21-00                     300 (S)              $32.59
        03-22-00                     900 (S)              $32.68
        03-23-00                   3,400 (S)              $34.38
        03-24-00                   6,500 (S)              $34.52
        03-29-00                   2,700 (S)              $36.53
        03-29-00                     100 (S)              $36.53
        03-30-00                     100 (S)              $36.16
        03-30-00                   3,400 (S)              $36.16
        03-31-00                   1,200 (S)              $35.98
        04-03-00                   1,800 (S)              $35.12
        04-04-00                   1,200 (S)              $35.55
        04-05-00                   1,700 (S)              $35.52
        04-06-00                     700 (S)              $36.48
        04-07-00                   3,400 (S)              $37.24
        04-10-00                   1,000 (S)              $38.00
        04-11-00                   5,600 (S)              $37.02
        04-11-00                   2,100 (S)              $37.02


                                 Page 32 of 41

<PAGE>


                                   SCHEDULE B

                FARALLON CAPITAL INSTITUTIONAL PARTNERS, L.P.


                                  NO. OF SHARES
                               PURCHASED (P) PRICE
       TRADE DATE                 OR SOLD (S)            PER SHARE
       ----------              -------------------       ---------

        02-18-00                   2,200 (P)              $25.77
        02-22-00                   1,300 (P)              $25.56
        02-23-00                   1,300 (P)              $25.49
        02-24-00                   2,600 (P)              $25.52
        02-25-00                   1,200 (P)              $25.61
        02-29-00                     300 (P)              $26.01
        03-07-00                   8,200 (P)              $25.66
        03-08-00                   1,700 (P)              $25.87
        03-08-00                   6,400 (P)              $25.92
        03-20-00                   6,500 (S)              $32.54
        03-21-00                     300 (S)              $32.59
        03-22-00                     800 (S)              $32.68
        03-23-00                   3,100 (S)              $34.38
        03-24-00                   1,200 (S)              $34.52
        03-24-00                   4,800 (S)              $34.52
        03-29-00                   2,600 (S)              $36.53
        03-30-00                   3,200 (S)              $36.16
        03-31-00                   1,100 (S)              $35.98
        04-03-00                   1,700 (S)              $35.12
        04-04-00                   1,100 (S)              $35.55
        04-05-00                   1,600 (S)              $35.52
        04-06-00                     700 (S)              $36.48
        04-07-00                   3,200 (S)              $37.24
        04-10-00                     900 (S)              $38.00
        04-11-00                     100 (S)              $37.02
        04-11-00                     200 (S)              $37.02
        04-11-00                   6,900 (S)              $37.02


                                 Page 33 of 41

<PAGE>


                                   SCHEDULE C

               FARALLON CAPITAL INSTITUTIONAL PARTNERS II, L.P.


                                  NO. OF SHARES
                               PURCHASED (P) PRICE
       TRADE DATE                 OR SOLD (S)            PER SHARE
       ----------              -------------------       ---------

        02-18-00                     200 (P)              $25.77
        02-22-00                     100 (P)              $25.56
        02-23-00                     100 (P)              $25.49
        02-24-00                     200 (P)              $25.52
        02-25-00                     400 (P)              $25.61
        02-29-00                     200 (P)              $26.01
        03-07-00                   2,800 (P)              $25.66
        03-08-00                     300 (P)              $25.87
        03-08-00                   1,000 (P)              $25.92
        03-20-00                   1,100 (S)              $32.54
        03-20-00                     700 (S)              $32.54
        03-21-00                     100 (S)              $32.59
        03-22-00                     200 (S)              $32.68
        03-23-00                     900 (S)              $34.38
        03-24-00                   1,700 (S)              $34.52
        03-29-00                     300 (S)              $36.53
        03-29-00                     400 (S)              $36.53
        03-30-00                     400 (S)              $36.16
        03-30-00                     500 (S)              $36.16
        03-31-00                     300 (S)              $35.98
        04-03-00                     200 (S)              $35.12
        04-03-00                     300 (S)              $35.12
        04-04-00                     300 (S)              $35.55
        04-05-00                     400 (S)              $35.52
        04-06-00                     200 (S)              $36.48
        04-07-00                     900 (S)              $37.24
        04-10-00                     300 (S)              $38.00
        04-11-00                   1,600 (S)              $37.02
        04-11-00                     300 (S)              $37.02
        04-11-00                     100 (S)              $37.02


                                 Page 35 of 41

<PAGE>


                                   SCHEDULE D

               FARALLON CAPITAL INSTITUTIONAL PARTNERS III, L.P.


                                  NO. OF SHARES
                               PURCHASED (P) PRICE
       TRADE DATE                 OR SOLD (S)            PER SHARE
       ----------              -------------------       ---------

        02-18-00                     300 (P)              $25.77
        02-22-00                     300 (P)              $25.56
        02-23-00                     200 (P)              $25.49
        02-24-00                     400 (P)              $25.52
        02-25-00                     600 (P)              $25.61
        02-29-00                     500 (P)              $26.01
        03-07-00                   4,500 (P)              $25.66
        03-08-00                     600 (P)              $25.87
        03-08-00                   2,200 (P)              $25.92
        03-20-00                   1,800 (S)              $32.54
        03-21-00                     100 (S)              $32.59
        03-22-00                     200 (S)              $32.68
        03-23-00                     800 (S)              $34.38
        03-24-00                   1,600 (S)              $34.52
        03-29-00                     700 (S)              $36.53
        03-30-00                     600 (S)              $36.16
        03-30-00                     300 (S)              $36.16
        03-31-00                     100 (S)              $35.98
        03-31-00                     200 (S)              $35.98
        04-03-00                     500 (S)              $35.12
        04-04-00                     300 (S)              $35.55
        04-05-00                     400 (S)              $35.52
        04-06-00                     200 (S)              $36.48
        04-07-00                     900 (S)              $37.24
        04-10-00                     300 (S)              $38.00
        04-11-00                   1,900 (S)              $37.02


                                 Page 35 of 41

<PAGE>


                                   SCHEDULE E

                             TINICUM PARTNERS, L.P.


                                  NO. OF SHARES
                               PURCHASED (P) PRICE
       TRADE DATE                 OR SOLD (S)            PER SHARE
       ----------              -------------------       ---------

        02-18-00                     100 (P)              $25.77
        02-22-00                     100 (P)              $25.56
        02-23-00                     100 (P)              $25.49
        02-24-00                     200 (P)              $25.52
        02-25-00                     200 (P)              $25.61
        02-29-00                     200 (P)              $26.01
        03-07-00                   1,100 (P)              $25.66
        03-08-00                     100 (P)              $25.87
        03-08-00                     500 (P)              $25.92
        03-20-00                     600 (S)              $32.54
        03-20-00                     100 (S)              $32.54
        03-22-00                     100 (S)              $32.68
        03-23-00                     300 (S)              $34.38
        03-24-00                     600 (S)              $34.52
        03-29-00                     300 (S)              $36.53
        03-30-00                     300 (S)              $36.16
        03-31-00                     100 (S)              $35.98
        04-03-00                     200 (S)              $35.12
        04-04-00                     100 (S)              $35.55
        04-05-00                     100 (S)              $35.52
        04-05-00                     100 (S)              $35.52
        04-06-00                     100 (S)              $36.48
        04-07-00                     300 (S)              $37.24
        04-10-00                     100 (S)              $38.00
        04-11-00                     800 (S)              $37.02


                                 Page 36 of 41

<PAGE>


                                   SCHEDULE F

                       FARALLON CAPITAL MANAGEMENT, L.L.C.


                                  NO. OF SHARES
                               PURCHASED (P) PRICE
       TRADE DATE                 OR SOLD (S)            PER SHARE
       ----------              -------------------       ---------

        02-18-00                   3,400 (P)              $25.77
        02-22-00                   2,000 (P)              $25.56
        02-23-00                   2,000 (P)              $25.49
        02-24-00                   4,400 (P)              $25.52
        02-25-00                   5,600 (P)              $25.61
        02-29-00                   4,400 (P)              $26.01
        03-07-00                  21,900 (P)              $25.66
        03-07-00                   1,000 (P)              $25.59
        03-08-00                   5,300 (P)              $25.87
        03-08-00                  12,400 (P)              $25.92
        03-20-00                  16,400 (S)              $32.54
        03-21-00                     700 (S)              $32.59
        03-22-00                   2,200 (S)              $32.68
        03-23-00                   4,100 (S)              $34.38
        03-23-00                     500 (S)              $34.38
        03-23-00                   3,500 (S)              $34.38
        03-24-00                  15,300 (S)              $34.52
        03-29-00                   6,400 (S)              $36.53
        03-30-00                   8,200 (S)              $36.16
        03-31-00                   2,900 (S)              $35.98
        04-03-00                   4,200 (S)              $35.12
        04-04-00                   2,800 (S)              $35.55
        04-05-00                   4,100 (S)              $35.52
        04-06-00                     600 (S)              $36.48
        04-06-00                   1,000 (S)              $36.48
        04-07-00                   7,500 (S)              $37.24
        04-07-00                     500 (S)              $37.24
        04-10-00                   2,400 (S)              $38.00
        04-11-00                   9,500 (S)              $37.02
        04-11-00                   8,600 (S)              $37.02

        02-18-00                     100 (P)              $25.77
        02-22-00                     100 (P)              $25.56
        02-23-00                     100 (P)              $25.49
        02-24-00                     100 (P)              $25.52
        02-25-00                     100 (P)              $25.61
        03-07-00                     300 (P)              $25.66


                                 Page 37 of 41

<PAGE>


        03-08-00                     200 (P)              $25.92
        03-20-00                     300 (S)              $32.54
        03-22-00                     100 (S)              $32.68
        03-23-00                     100 (S)              $34.38
        03-24-00                     300 (S)              $34.52
        03-29-00                     100 (S)              $36.53
        03-30-00                     100 (S)              $36.16
        03-31-00                     100 (S)              $35.98
        04-03-00                     100 (S)              $35.12
        04-05-00                     100 (S)              $35.52
        04-07-00                     100 (S)              $37.24
        04-11-00                     300 (S)              $37.02

        02-29-00                   5,600 (S)              $27.01
        03-01-00                  24,200 (S)              $27.27
        03-01-00                   2,800 (S)              $27.27
        03-01-00                   2,200 (S)              $27.27
        03-01-00                   2,000 (S)              $27.27
        03-01-00                   2,800 (S)              $27.27
        03-02-00                   1,600 (S)              $26.96
        03-02-00                     400 (S)              $26.96
        03-02-00                   1,400 (S)              $26.96
        03-02-00                   2,600 (S)              $26.96
        03-02-00                   1,500 (S)              $26.96
        03-02-00                     400 (S)              $26.96
        03-02-00                     200 (S)              $26.96
        03-02-00                     400 (S)              $26.96
        03-02-00                     300 (S)              $26.96
        03-02-00                     600 (S)              $26.96
        03-02-00                     700 (S)              $26.96
        03-02-00                     600 (S)              $26.96
        03-02-00                   2,500 (S)              $26.96
        03-02-00                   1,300 (S)              $26.96
        03-02-00                     100 (S)              $26.96
        03-02-00                   1,300 (S)              $26.96
        03-02-00                   2,000 (S)              $26.96
        03-02-00                   1,800 (S)              $26.96
        03-02-00                   1,900 (S)              $26.96
        03-02-00                   2,400 (S)              $26.96
        03-02-00                   3,000 (S)              $26.96
        03-02-00                     100 (S)              $26.96
        03-02-00                     900 (S)              $26.96
        03-02-00                   2,200 (S)              $26.96
        03-02-00                   1,100 (S)              $26.96
        03-02-00                     100 (S)              $26.96
        03-02-00                     100 (S)              $26.96


                                 Page 38 of 41

<PAGE>

        03-02-00                     100 (S)              $26.96
        03-02-00                     500 (S)              $26.96
        03-02-00                     300 (S)              $26.96
        03-02-00                     100 (S)              $26.96
        03-02-00                     200 (S)              $26.96
        03-02-00                     100 (S)              $26.96
        03-02-00                     200 (S)              $26.96
        03-02-00                     100 (S)              $26.96
        03-02-00                     200 (S)              $26.96
        03-02-00                     100 (S)              $26.96
        03-02-00                     100 (S)              $26.96
        03-02-00                     200 (S)              $26.96
        03-02-00                     100 (S)              $26.96


                                 Page 39 of 41

<PAGE>


EXHIBIT INDEX

EXHIBIT 1                      Joint Acquisition Statement Pursuant to Rule 13D-
                               (f)(1)





                                 Page 40 of 41

<PAGE>


                                                                       EXHIBIT 1
                                                                              to
                                                                    SCHEDULE 13D

                           JOINT ACQUISITION STATEMENT
                           PURSUANT TO RULE 13D-(f)(1)

     The  undersigned  acknowledge  and agree that the  foregoing  statement  on
Schedule  13D is  filed  on  behalf  of each of the  undersigned  and  that  all
subsequent amendments to this statement on Schedule 13D shall be filed on behalf
of each of the  undersigned  without the  necessity of filing  additional  joint
acquisition   statements.   The  undersigned  acknowledge  that  each  shall  be
responsible for the timely filing of such  amendments,  and for the completeness
and accuracy of the information concerning him, her or it contained therein, but
shall not be responsible  for the  completeness  and accuracy of the information
concerning the other  entities or persons,  except to the extent that he, she or
it knows or has reason to believe that such information is inaccurate.

Dated:  April 14, 2000


               /S/ Thomas F. Steyer
               ----------------------------------------
               FARALLON PARTNERS,  L.L.C.,
               on its own behalf and as General Partner of
               FARALLON CAPITAL PARTNERS, L.P.,
               FARALLON CAPITAL INSTITUTIONAL PARTNERS, L.P.,
               FARALLON CAPITAL INSTITUTIONALPARTNERS II, L.P.,
               FARALLON CAPITAL  INSTITUTIONAL  PARTNERS III, L.P.,
               And TINICUM PARTNERS, L.P.
               By Thomas F. Steyer,
               Senior Managing Member


               /S/ Thomas F. Steyer
               ----------------------------------------
               FARALLON CAPITAL MANAGEMENT, L.L.C.,
               By Thomas F. Steyer,
               Senior Managing Member


               /S/ Thomas F. Steyer
               ----------------------------------------
               Thomas F. Steyer, individually and as attorney-in-fact
               for each of Enrique H. Boilini, David I. Cohen, Joseph F. Downes,
               William F. Duhamel, Fleur E. Fairman, Jason M. Fish,
               Andrew B. Fremder, Richard B. Fried, William F. Mellin,
               Stephen L. Millham, Meridee A. Moore and Mark C. Wehrly.


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