SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

                                  SCHEDULE 13G

                    Under the Securities Exchange Act of 1934
                                (Amendment No. 1)


                                W. R. Grace & Co.
                                -----------------
                                (Name of Issuer)

                          Common Stock, $0.01 par value
                          -----------------------------
                         (Title of Class of Securities)


                                    38388F108
                                    ---------
                                 (CUSIP Number)


                                December 31, 2004
                                -----------------
             (Date of Event Which Requires Filing of this Statement)

Check the following box to designate the rule pursuant to which the Schedule is
filed:

   [ ]  Rule 13d-1(b)
   [X]  Rule 13d-1(c)
   [ ]  Rule 13d-1(d)

*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 the
disclosures provided in a prior cover page.

The information required in 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 ("Act") 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).





CUSIP No. 237266101                   13G                    


________________________________________________________________________________
1.   NAME OF REPORTING PERSONS
     I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

     D. E. Shaw Laminar Portfolios, L.L.C.  
     01-0577802                             
________________________________________________________________________________
2.   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                 (a)  [_]
                                                                 (b)  [_]

________________________________________________________________________________
3.   SEC USE ONLY



________________________________________________________________________________
4.   CITIZENSHIP OR PLACE OF ORGANIZATION

     Delaware

________________________________________________________________________________
  NUMBER OF    5.   SOLE VOTING POWER
                    
   SHARES           -0-
               _________________________________________________________________
BENEFICIALLY   6.   SHARED VOTING POWER
                    
  OWNED BY          3,066,900
               _________________________________________________________________
    EACH       7.   SOLE DISPOSITIVE POWER
                    
  REPORTING         -0-
               _________________________________________________________________
   PERSON      8.   SHARED DISPOSITIVE POWER
                    
    WITH            3,066,900
________________________________________________________________________________
9.   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

     3,066,900

________________________________________________________________________________
10.  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

                                                                          [_]

________________________________________________________________________________
11.  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

     4.7%

________________________________________________________________________________
12.  TYPE OF REPORTING PERSON*

     OO

________________________________________________________________________________
                     *SEE INSTRUCTIONS BEFORE FILLING OUT!



                                      -2-




CUSIP No. 237266101                   13G                    


________________________________________________________________________________
1.   NAME OF REPORTING PERSONS
     I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

     D. E. Shaw & Co., L.P. 
     13-3695715             
________________________________________________________________________________
2.   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                 (a)  [_]
                                                                 (b)  [_]

________________________________________________________________________________
3.   SEC USE ONLY



________________________________________________________________________________
4.   CITIZENSHIP OR PLACE OF ORGANIZATION

     Delaware

________________________________________________________________________________
  NUMBER OF    5.   SOLE VOTING POWER
                    
   SHARES           -0-
               _________________________________________________________________
BENEFICIALLY   6.   SHARED VOTING POWER
                    
  OWNED BY          3,066,900
               _________________________________________________________________
    EACH       7.   SOLE DISPOSITIVE POWER
                    
  REPORTING         -0-
               _________________________________________________________________
   PERSON      8.   SHARED DISPOSITIVE POWER
                    
    WITH            3,066,900
________________________________________________________________________________
9.   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

     3,066,900

________________________________________________________________________________
10.  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

                                                                          [_]

________________________________________________________________________________
11.  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

     4.7%

________________________________________________________________________________
12.  TYPE OF REPORTING PERSON*

     IA, PN

________________________________________________________________________________
                     *SEE INSTRUCTIONS BEFORE FILLING OUT!


                                      -3-




CUSIP No. 237266101                   13G                    


________________________________________________________________________________
1.   NAME OF REPORTING PERSONS
     I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

     D. E. Shaw & Co., L.L.C.
     13-3799946              
________________________________________________________________________________
2.   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                 (a)  [_]
                                                                 (b)  [_]

________________________________________________________________________________
3.   SEC USE ONLY



________________________________________________________________________________
4.   CITIZENSHIP OR PLACE OF ORGANIZATION

     Delaware

________________________________________________________________________________
  NUMBER OF    5.   SOLE VOTING POWER
                    
   SHARES           -0-
               _________________________________________________________________
BENEFICIALLY   6.   SHARED VOTING POWER
                    
  OWNED BY          3,066,900
               _________________________________________________________________
    EACH       7.   SOLE DISPOSITIVE POWER
                    
  REPORTING         -0-
               _________________________________________________________________
   PERSON      8.   SHARED DISPOSITIVE POWER
                    
    WITH            3,066,900
________________________________________________________________________________
9.   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

     3,066,900

________________________________________________________________________________
10.  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

                                                                          [_]

________________________________________________________________________________
11.  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

     4.7%

________________________________________________________________________________
12.  TYPE OF REPORTING PERSON*

     OO

________________________________________________________________________________
                     *SEE INSTRUCTIONS BEFORE FILLING OUT!


                                      -4-



CUSIP No. 237266101                   13G                    


________________________________________________________________________________
1.   NAME OF REPORTING PERSONS
     I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

     David E. Shaw
     
________________________________________________________________________________
2.   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                 (a)  [_]
                                                                 (b)  [_]

________________________________________________________________________________
3.   SEC USE ONLY



________________________________________________________________________________
4.   CITIZENSHIP OR PLACE OF ORGANIZATION

     United States

________________________________________________________________________________
  NUMBER OF    5.   SOLE VOTING POWER
                    
   SHARES           -0-
               _________________________________________________________________
BENEFICIALLY   6.   SHARED VOTING POWER
                    
  OWNED BY          3,066,900
               _________________________________________________________________
    EACH       7.   SOLE DISPOSITIVE POWER
                    
  REPORTING         -0-
               _________________________________________________________________
   PERSON      8.   SHARED DISPOSITIVE POWER
                    
    WITH            3,066,900
________________________________________________________________________________
9.   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

     3,066,900

________________________________________________________________________________
10.  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

                                                                          [_]

________________________________________________________________________________
11.  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

     4.7%

________________________________________________________________________________
12.  TYPE OF REPORTING PERSON*

     IN

________________________________________________________________________________
                     *SEE INSTRUCTIONS BEFORE FILLING OUT!



                                      -5-



ITEM 1.
     (A) NAME OF ISSUER 
     W. R. Grace & Co.
     (B) ADDRESS OF ISSUER'S PRINCIPAL EXECUTIVE OFFICES
     7500 Grace Drive
     Columbia, MD 21044-4098

ITEM 2.
     (A) NAME OF PERSON FILING
     D. E. Shaw Laminar Portfolios, L.L.C.
     D. E. Shaw & Co., L.P.
     D. E. Shaw & Co., L.L.C.
     David E. Shaw

     (B) ADDRESS OF PRINCIPAL BUSINESS OFFICE OR, IF NONE, RESIDENCE
     The business address for all filers is:
     120 W. 45th Street, Tower 45, 39th Floor
     New York, NY 10036

     (C) CITIZENSHIP
     D. E. Shaw Laminar Portfolios, L.L.C. is a limited liability company
     organized under the laws of the state of Delaware.
     D. E. Shaw & Co., L.P. is a limited partnership organized under the laws of
     the state of Delaware.
     D. E. Shaw & Co., L.L.C. is a limited liability company organized under the
     laws of the state of Delaware.
     David E. Shaw is a citizen of the United States of America.

     (D) TITLE OF CLASS OF SECURITIES
     Common Stock, $0.01 par value

     (E) CUSIP NUMBER
     38388F108

ITEM 3. IF THIS STATEMENT IS FILED PURSUANT TO RULE 13D-1(B) OR 13D-2(B) OR (C),
CHECK WHETHER THE PERSON FILING IS A:

Not Applicable

ITEM 4. OWNERSHIP.
     (a)  Amount beneficially owned:

     D. E. Shaw Laminar Portfolios, L.L.C.: 3,066,900 Shares
     D. E. Shaw & Co., L.P.:                3,066,900 Shares
     D. E. Shaw & Co., L.L.C.:              3,066,900 Shares
     David E. Shaw:                         3,066,900 Shares

     (b) Percent of class:

     D. E. Shaw Laminar Portfolios, L.L.C.: 4.7%
     D. E. Shaw & Co., L.P.:                4.7%
     D. E. Shaw & Co., L.L.C.:              4.7%
     David E. Shaw:                         4.7%

(c) Number of shares to which the person has:

     (i) Sole power to vote or to direct the vote:

          D. E. Shaw Laminar Portfolios, L.L.C.: -0-
          D. E. Shaw & Co., L.P.:                -0-
          D. E. Shaw & Co., L.L.C.:              -0-
          David E. Shaw:                         -0-



                                      -6-




     (ii) Shared power to vote or to direct the vote:

          D. E. Shaw Laminar Portfolios, L.L.C.: 3,066,900 Shares 
          D. E. Shaw & Co., L.P.:                3,066,900 Shares
          D. E. Shaw & Co., L.L.C.:              3,066,900 Shares
          David E. Shaw:                         3,066,900 Shares

     (i)  Sole power to dispose or to direct the disposition of:

          D. E. Shaw Laminar Portfolios, L.L.C.: -0-
          D. E. Shaw & Co., L.P.:                -0-
          D. E. Shaw & Co., L.L.C.:              -0-
          David E. Shaw:                         -0-

     (ii) Shared power to dispose or to direct the disposition of:

          D. E. Shaw Laminar Portfolios, L.L.C.: 3,066,900 Shares
          D. E. Shaw & Co., L.P.:                3,066,900 Shares
          D. E. Shaw & Co., L.L.C.:              3,066,900 Shares
          David E. Shaw:                         3,066,900 Shares

David Shaw does not own any shares directly. By virtue of David Shaw's position
as President and sole shareholder of D. E. Shaw & Co., Inc., which is the
general partner of D. E. Shaw & Co., L.P., which in turn is the investment
adviser of D. E. Shaw Laminar Portfolios, L.L.C., and by virtue of David Shaw's
position as President and sole shareholder of D. E. Shaw & Co. II, Inc., which
is the managing member of D. E. Shaw & Co., L.L.C., which in turn is the
managing member of D. E. Shaw Laminar Portfolios, L.L.C., David Shaw may be
deemed to have the shared power to vote or direct the vote of, and the shared
power to dispose or direct the disposition of, the 3,066,900 shares owned by D.
E. Shaw Laminar Portfolios, L.L.C., constituting 4.7% of the outstanding shares
and, therefore, David Shaw may be deemed to be the beneficial owner of such
shares. David Shaw disclaims beneficial ownership of such 3,066,900 shares.

ITEM 5. OWNERSHIP OF FIVE PERCENT OR LESS OF A CLASS
Not Applicable

ITEM 6. OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER PERSON.
Not Applicable

ITEM 7. IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH ACQUIRED THE 
        SECURITY BEING REPORTED ON BY THE PARENT HOLDING COMPANY OR CONTROL 
        PERSON.
Not Applicable

ITEM 8. IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP
Not Applicable

ITEM 9. NOTICE OF DISSOLUTION OF GROUP
Not Applicable

ITEM 10. CERTIFICATION

     By signing below, each of D. E. Shaw Laminar Portfolios, L.L.C., D. E. Shaw
     & Co., L.P., D. E. Shaw & Co., L.L.C., and David Shaw certify that, to the
     best of such reporting person's knowledge and belief, the securities
     referred to above were not acquired and are not held for the purpose of or
     with the effect of changing or influencing the control of the issuer of the
     securities and were not acquired and are not held in connection with or as
     a participant in any transaction having such purposes or effect.




                                      -7-



                                    SIGNATURE

         After reasonable inquiry and to the best of their knowledge and belief,
the undersigned certify that the information set forth in this statement is
true, complete, and correct. Powers of Attorney, dated February 24, 2004 granted
by David E. Shaw in favor of Stuart Steckler, are attached hereto.


Dated: February 14, 2005






                                 D. E. Shaw Laminar Portfolios, L.L.C.

                                 By: D. E. Shaw & Co., L.L.C., as managing
                                     member

                                     By: /s/ Stuart Steckler
                                         -------------------------------------
                                         Stuart Steckler
                                         Managing Director
                                    
                                
                                 D. E. Shaw & Co., L.P.

                                 By: /s/ Stuart Steckler
                                     -----------------------------------------
                                     Stuart Steckler
                                     Managing Director


                                 D. E. Shaw & Co., L.L.C.

                                 By: /s/ Stuart Steckler
                                     -----------------------------------------
                                     Stuart Steckler
                                     Managing Director


                                 David E. Shaw

                                 By: /s/ Stuart Steckler
                                     -----------------------------------------
                                     Stuart Steckler
                                     Attorney-in-Fact for David E. Shaw



                                      -8-



                                    EXHIBIT 1
                                    ---------

                                POWER OF ATTORNEY
                               FOR CERTAIN FILINGS
                    UNDER THE SECURITIES EXCHANGE ACT OF 1934


I, David E. Shaw, hereby make, constitute and appoint each of:

         Anne Dinning,

         Julius Gaudio,

         Lou Salkind,

         Stuart Steckler, and

         Eric Wepsic,

acting individually, as my agent and attorney-in-fact, with full power of
substitution, for the purpose of, from time to time, executing in my name and/or
my capacity as President of D. E. Shaw & Co., Inc. (acting for itself or as the
general partner of D. E. Shaw & Co., L. P. and general partner or managing
member of other entities, any which in turn may be acting for itself or other
entities) all documents, certificates, instruments, statement, other filings,
and amendments to the forgoing (collectively, "documents") determined by such
person to be necessary or appropriate to comply with ownership or control-person
reporting requirements imposed by any United States or non-United States
governmental or regulatory authority, including without limitation Forms 3, 4,
5, 13D, 13F, and 13G required to be filed with the Securities and Exchange
Commission; and delivering, furnishing or filing any such documents with the
appropriate governmental or regulatory authority. Any such determination shall
be conclusively evidenced by such person's execution, delivery, furnishing,
and/or filing of the applicable document.

This power of attorney shall be valid from the date hereof and replaces the
power granted on February 5, 2001, which is hereby cancelled.

IN WITNESS HEREOF, I have executed this instrument as of the date set forth
below.

Date: February 24, 2004 

DAVID E. SHAW, as President of
D. E. Shaw & Co., Inc.
/s/David E. Shaw
New York, New York





                                POWER OF ATTORNEY
                               FOR CERTAIN FILINGS
                    UNDER THE SECURITIES EXCHANGE ACT OF 1934

I, David E. Shaw, hereby make, constitute and appoint each of:

         Anne Dinning,

         Julius Gaudio,

         Lou Salkind,

         Stuart Steckler, and

         Eric Wepsic,

acting individually, as my agent and attorney-in-fact, with full power of
substitution, for the purpose of, from time to time, executing in my name and/or
my capacity as President of D. E. Shaw & Co. II, Inc. (acting for itself and as
the managing member of D. E. Shaw & Co., L.L.C., which in turn may be acting for
itself or as the managing member of other companies) all documents,
certificates, instruments, statement, other filings and amendments to the
forgoing (collectively, "documents") determined by such person to be necessary
or appropriate to comply with ownership or control-person reporting requirements
imposed by any United States or non-United States governmental or regulatory
authority, including without limitation Forms 3, 4, 5, 13D, 13F and 13G required
to be filed with the Securities and Exchange Commission; and delivering,
furnishing or filing any such documents with the appropriate governmental or
regulatory authority. Any such determination shall be conclusively evidenced by
such person's execution and delivery, furnishing or filing of the applicable
document.

This power of attorney shall be valid from the date hereof and replaces the
power granted on February 5, 2001, which is hereby cancelled.

IN WITNESS HEREOF, I have executed this instrument as of the date set forth
below.

Date:  February 24, 2004

DAVID E. SHAW, as President of
D. E. Shaw & Co. II, Inc.
/s/David E. Shaw
New York, New York