UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549


                                  SCHEDULE 13G


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




                          Northfield Laboratories Inc.
                          ----------------------------
                                (Name of Issuer)



                                  Common Stock
                         ------------------------------
                         (Title of Class of Securities)



                                    666135108
                                 --------------
                                 (CUSIP Number)


                                  July 28, 2003
             ------------------------------------------------------
             (Date of Event which Requires Filing of this Statement)


Check the  appropriate box to designate the rule pursuant to which this 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 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 ("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. 666135108                        13G            Page  2  of   6  Pages
---------------------------                               -------------------------------

--------- -------------------------------------------------------------------------------
          NAME OF REPORTING PERSONS
   1      I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS  (Entities only)

          Michael A. Roth and Brian J. Stark, as joint filers pursuant to Rule 13D-1(k)

--------- -------------------------------------------------------------------------------
          CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*                      (a)  |_|
   2                                                                             (b)  |_|
          Not Applicable.
--------- -------------------------------------------------------------------------------
          SEC USE ONLY
   3
--------- -------------------------------------------------------------------------------
          CITIZENSHIP OF PLACE OF ORGANIZATION
   4
          United States of America
--------- -------------------------------------------------------------------------------
      NUMBER OF                   SOLE VOTING POWER
        SHARES             5
     BENEFICIALLY                 1,160,714
       OWNED BY
         EACH
      REPORTING
        PERSON
         WITH
                        --------- -------------------------------------------------------
                                  SHARED VOTING POWER
                           6
                                  0
                        --------- -------------------------------------------------------
                                  SOLE DISPOSITIVE POWER
                           7
                                  1,160,714
                        --------- -------------------------------------------------------
                                  SHARED DISPOSITIVE POWER
                           8
                                  0
------------ ----------------------------------------------------------------------------
     9       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

             1,160,714
------------ ----------------------------------------------------------------------------
    10       CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*    |_|

             Not applicable.
------------ ----------------------------------------------------------------------------
    11       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

             7.1%
------------ ----------------------------------------------------------------------------
    12       TYPE OF REPORTING PERSON*

             IN
------------ ----------------------------------------------------------------------------

                      *SEE INSTRUCTIONS BEFORE FILLING OUT!




                                                          Page  3   of  6  Pages
SCHEDULE 13G                                                      August 7, 2003

Item 1(a).     Name of Issuer.
---------      --------------

               Northfield Laboratories Inc.

Item 1(b).     Address of Issuer's Principal Executive Offices.
---------      -----------------------------------------------

               1560 Sherman Avenue
               Suite 1000
               Evanston, IL  60201-4800

Item 2(a).     Name of Person Filing.
---------      ----------------------

               Michael A. Roth and Brian J. Stark, as joint filers

Item 2(b).     Address  of  Principal  Business  Office  or,  if  None,
---------      --------------------------------------------------------
               Residence.
               ---------

               3600 South Lake Drive
               St. Francis, WI  53235

Item 2(c).     Citizenship.
---------      -----------

               United States of America

Item 2(d).     Title of Class of Securities.
---------      ----------------------------

               Common Stock

Item 2(e).     CUSIP Number.
---------      ------------

               666135108

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:
               -----------------------------------------------------

                   (a)     |_|      Broker or dealer registered under Section 15
                                    of the  Exchange Act.

                   (b)     |_|      Bank as  defined in  Section 3(a)(6)  of the
                                    Exchange Act.

                   (c)     |_|      Insurance company as defined in Section 3(a)
                                    (19) of the Exchange Act.

                   (e)     |_|      Investment company  registered under Section
                                    8 of the Investment Company Act.

                   (f)     |_|      An  investment  advisor in  accordance  with
                                    Rule 13d-1(b)(1)(ii)(E);



                                                          Page  4   of  6  Pages
SCHEDULE 13G                                                      August 7, 2003

                   (g)     |_|      An employee  benefit plan or endowment fund
                                    in accordance with Rule 13d-1(b)(1)(ii)(F);
                   (h)     |_|      A parent holding company or control person
                                    in  accordance with Rule 13d-1(b)(1)(ii)(G)
                   (i)     |_|      A savings  association as defined in Section
                                    3(b) of the Federal  Deposit Insurance Act;
                   (j)     |_|      A churc h plan  that is  excluded  from  the
                                    definition of an  investment  company  under
                                    Section 3(c)(14) of the  Investment  Company
                                    Act;
                   (k)     |_|      Group, in accordance with  Rule  13d-1(b)(1)
                                    (ii)(J)

                If this statement is filed pursuant to Rule 13d-1(c), check this
                box. |X|


                     
Item 4.        Ownership.
------         ---------
                   (a)     Amount beneficially owned:
                                         1,160,714*
                           -----------------------------------------------------
                   (b)     Percent of class:
                                            7.1%*
                           -----------------------------------------------------
                   (c)     Number of shares as to which such person has:

                   (i)     Sole power to vote or to direct the vote   1,160,714*
                                                                    ------------

                   (ii)    Shared power to vote or to direct the vote        0
                                                                     -----------

                   (iii)   Sole power to dispose or to direct the disposition of 1,160,714*   ,
                                                                                ---------------

                   (iv)    Shared power to dispose or direct the disposition of       0       ,
                                                                                ---------------

                            *The  foregoing  amounts  of shares  and  percentage
                            represent the combined  indirect holdings of Michael
                            A. Roth and Brian J. Stark, as joint filers.  All of
                            the foregoing shares are held directly by SF Capital
                            Partners,  Ltd., a British  Virgin  Islands  company
                            ("SF Capital") which acquired 892,857 shares and the
                            right  to  purchase  an  additional  267,857  shares
                            within 60 days after July 28, 2003. Messrs. Roth and
                            Stark  are  the  founding  members  and  direct  the
                            management  of Staro  Asset  Management,  L.L.C.,  a
                            Wisconsin  limited liability company ("Staro") which
                            acts as  investment  manager  and has sole  power to
                            direct the management of SF Capital.  Through Staro,
                            Messrs.  Roth and  Stark  possess  sole  voting  and
                            dispositive  power over all of the foregoing shares.
                            Based  upon the  16,426,589  shares of Common  Stock
                            issued  and  outstanding  as of July  28,  2003,  as
                            reported by the Issuer to SF Capital  (which  amount




                                                          Page  5   of  6  Pages
SCHEDULE 13G                                                      August 7, 2003



                            includes  the  14,265,875  shares  reported  in  the
                            Issuer's Form 10-Q for the period ended February 28,
                            2003 plus the  1,892,857  shares  sold,  along  with
                            options  exercisable  within 60 days to  purchase an
                            additional  567,857  shares,  as of  July  28,  2003
                            pursuant to the Issuer's  Registration  Statement on
                            Form S-3  filed  with the SEC on June 27,  2003,  as
                            supplemented),  for the purposes of Rule 13d-3 under
                            the Securities  Exchange Act of 1934,  Messrs.  Roth
                            and Stark may be deemed to be the beneficial  owners
                            of 1,160,714 shares of Common Stock which represents
                            7.1% of the Issuer's issued and  outstanding  shares
                            of Common Stock.

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.
               -------

                   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 I certify that, to the best of my 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 that purpose or effect.




                                                          Page  6   of  6  Pages
SCHEDULE 13G                                                      August 7, 2003



                                    SIGNATURE

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


                                               August 7, 2003




                                                /s/ Michael A. Roth
                                               ---------------------------------
                                               Michael A. Roth


                                                /s/ Brian J. Stark
                                               ---------------------------------
                                               Brian J. Stark




                                    EXHIBIT 1

                          AGREEMENT AS TO JOINT FILING

                              Dated: August 7, 2003


         The  undersigned  hereby  agree that the  Schedule  13G with respect to
Northfield  Laboratories Inc. dated as of the date hereof, is filed on behalf of
each of the undersigned jointly pursuant to Rule 13d-1(k).




                                                /s/ Michael A. Roth
                                               ---------------------------------
                                               Michael A. Roth


                                                /s/ Brian J. Stark
                                               ---------------------------------
                                               Brian J. Stark













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