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

                                  SCHEDULE 13G
                    UNDER THE SECURITIES EXCHANGE ACT OF 1934
                              (AMENDMENT NO. ___)*

                                 StemCells Inc.
- --------------------------------------------------------------------------------
                                (Name of Issuer)

                               Common Stock, $.01
- --------------------------------------------------------------------------------
                         (Title of Class of Securities)

                                    85857R105
- --------------------------------------------------------------------------------
                                 (CUSIP Number)

                                October 28, 2002
- --------------------------------------------------------------------------------
             (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 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).


                               Page 1 of 8 pages


CUSIP NO.         85857R105

- --------------------------------------------------------------------------------
         NAMES OF REPORTING PERSONS
1        I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
         GABRIEL CAPITAL CORPORATION
- --------------------------------------------------------------------------------
2        CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)
                                                                        (a) [X]
                                                                        (b) [ ]
- --------------------------------------------------------------------------------
3        SEC USE ONLY
- --------------------------------------------------------------------------------
4        CITIZENSHIP OR PLACE OF ORGANIZATION
         DELAWARE
- --------------------------------------------------------------------------------

                      5      SOLE VOTING POWER

   NUMBER OF   -----------------------------------------------------------------
     SHARES
  BENEFICIALLY        6      SHARED VOTING POWER
    OWNED BY                 645,765
      EACH     -----------------------------------------------------------------
   REPORTING
     PERSON           7      SOLE DISPOSITIVE POWER
      WITH
               -----------------------------------------------------------------

                      8      SHARED DISPOSITIVE POWER
                             645,765
- --------------------------------------------------------------------------------

9        AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
         645,765
- --------------------------------------------------------------------------------

10       CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
         (SEE INSTRUCTIONS)                                                 [ ]

- --------------------------------------------------------------------------------

11       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
         2.5%
- --------------------------------------------------------------------------------

         TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
12       CO

- --------------------------------------------------------------------------------


                               Page 2 of 8 pages


CUSIP NO.         85857R105

- --------------------------------------------------------------------------------
         NAMES OF REPORTING PERSONS
1        I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
         J. EZRA MERKIN
- --------------------------------------------------------------------------------
2        CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)
                                                                        (a) [ ]
                                                                        (b) [ ]
- --------------------------------------------------------------------------------
3        SEC USE ONLY
- --------------------------------------------------------------------------------
4        CITIZENSHIP OR PLACE OF ORGANIZATION
         DELAWARE
- --------------------------------------------------------------------------------

                      5      SOLE VOTING POWER
                             645,765
   NUMBER OF   -----------------------------------------------------------------
     SHARES
  BENEFICIALLY        6      SHARED VOTING POWER
    OWNED BY                 645,765
      EACH     -----------------------------------------------------------------
   REPORTING
     PERSON           7      SOLE DISPOSITIVE POWER
      WITH
               -----------------------------------------------------------------

                      8      SHARED DISPOSITIVE POWER
                             1,291,530
- --------------------------------------------------------------------------------

9        AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
         1,291,530
- --------------------------------------------------------------------------------

10       CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
         (SEE INSTRUCTIONS)                                                 [ ]

- --------------------------------------------------------------------------------

11       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
         5.0%
- --------------------------------------------------------------------------------

         TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
12       IN

- --------------------------------------------------------------------------------


                               Page 3 of 8 pages


ITEM 1.                 (a)   Name of Issuer:

                              StemCells Inc.


                        (b)   Address of Issuer's Principal Executive Offices:

                              3115 Porter Drive
                              Palo Alto, CA  94304

ITEM 2.                 (a)(b)(c) Name of Person Filing; Address of Principal
                        Business Office or, if none, Residence; Citizenship:

This Schedule 13G is being filed jointly by Gabriel Capital Corporation, a
Delaware corporation ("Gabriel Capital") and the Investment Advisor of Ariel
Fund Limited, a Cayman Islands corporation ("Ariel Fund"), and J. Ezra Merkin
("Merkin"), the General Partner of Gabriel Capital L.P., a Delaware limited
partnership ("Gabriel"). Merkin is also the sole shareholder, sole director and
president of Gabriel Capital. Gabriel Capital and Merkin are hereinafter
sometimes referred to collectively as the "Reporting Persons." The business
address of each of Gabriel, Gabriel Capital and Merkin is 450 Park Avenue, New
York, New York 10022 and the business address of Ariel Fund is c/o Maples &
Calder, P.O. Box 309, Grand Cayman, Cayman Islands, British West Indies. Merkin
is a United States Citizen.

                      (a)   Title of Class of Securities:

                            Common Stock, $.01 par value

                      (b)   CUSIP Number:

                            85857R105

ITEM 3.               IF THIS STATEMENT IS FILED PURSUANT TO SS.SS.240.13d-1(b),
                      OR 240.13d-2(b) OR (c), CHECK WHETHER THE PERSON FILING
                      IS A:

                      (a)   [ ]    Broker or dealer registered under section 15
                                   of the Act (15 U.S.C. 78o).

                      (b)   [ ]    Bank as defined in section 3(a)(6) of the Act
                                   (15 U.S.C. 78c).

                      (c)   [ ]    Insurance company as defined in section 3(a)
                                   (19) of the Act (15 U.S.C. 78c).

                      (d)   [ ]    Investment company registered under section 8
                                   of the Investment Company Act of 1940
                                   (15 U.S.C. 80a-8).

                      (e)   [ ]    An investment adviser in accordance with
                                   ss.240.13d-1(b)(1)(ii)(E).


                               Page 4 of 8 pages



                      (f)   [ ]    An employee benefit plan or endowment fund in
                                   accordance with ss.240.13d-1(b)(1)(ii)(F).

                      (g)   [ ]    A parent holding company or control person in
                                   accordance with ss.240.13d-1(b)(1)(ii)(G).

                      (h)   [ ]    A savings association as defined in Section
                                   3(b) of the Federal Deposit Insurance Act
                                   (12 U.S.C. 1813).

                      (i)   [ ]    A church plan that is excluded from the
                                   definition of an investment company under
                                   section 3(c)(14) of the Investment Company
                                   Act of 1940 (15 U.S.C. 80a-3).

                      (j)   [ ]    Group, in accordance with ss.240.13d-1(b)(1)
                                   (ii)(J).

ITEM 4.               OWNERSHIP:

                      (a)   Amount Beneficially Owned: 1,291,530*

                      (b)   Percent of Class: 5.0%*

                      (c)   Number of Shares as to which the person has:

                            (i)   sole power to vote or direct the vote 645,765*

                            (ii)  shared power to vote or direct the vote
                                  645,765*

                            (iii) sole power to dispose or direct the
                                  disposition of 0*

                            (iv)  shared power to dispose or direct the
                                  disposition of 1,291,530*

                            *See Attachment A

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


                               Page 5 of 8 pages


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.

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.


                                       GABRIEL CAPITAL CORPORATION


                                       By: /s/ J. Ezra Merkin
                                          --------------------------------------
                                          Name:  J. Ezra Merkin
                                          Title: President


                                           /s/ J. Ezra Merkin
                                          --------------------------------------
                                          J. EZRA MERKIN


Date: October 29, 2002


                               Page 6 of 8 pages


                                  ATTACHMENT A

     As of October 28, 2002, Gabriel is the holder of 645,765 shares of Common
Stock, or 2.5% of the outstanding shares of Common Stock. As of October 28,
2002, Ariel Fund is the holder of 645,765 shares of Common Stock, or 2.5% of the
outstanding shares of Common Stock. Gabriel and Ariel Fund are managed
investment vehicles and neither is the beneficial owner of said shares. Gabriel
Capital, as Investment Advisor to Ariel Fund, has the power to vote and to
direct the voting of and shared power to dispose and direct the disposition of
the 645,765 shares of Common Stock owned by Ariel Fund. Accordingly, Gabriel
Capital may be deemed to be the beneficial owner of 645,765 shares of Common
Stock, or 2.5% of the outstanding shares of Common Stock. As the General Partner
of Gabriel, Merkin has the power to vote and to direct the voting of and shared
power to dispose and direct the disposition of the 645,765 shares of Common
Stock owned by Gabriel. In addition, as the sole shareholder and president of
Gabriel Capital, Merkin may be deemed to have the power to vote and to direct
the voting of and shared power to dispose and direct the disposition of the
645,765 shares of Common Stock owned by Ariel Fund. The dispositive power that
is reported as shared herein is shared with Mayer Offman. Accordingly, Merkin
may be deemed to be the beneficial owner of 1,291,530 shares of Common Stock, or
5.0% of the outstanding shares of Common Stock.


                               Page 7 of 8 pages


                            AGREEMENT OF JOINT FILING

     In accordance with Rule 13d-1(k) under the Securities Exchange Act of 1934,
as amended, the undersigned hereby agree to the joint filing with all other
persons signatory below of a statement on Schedule 13G or any amendments
thereto, with respect to the Common Stock of StemCells Inc., and that this
Agreement be included as an attachment to such filing.

     This Agreement may be executed in any number of counterparts each of which
shall be deemed to be an original and all of which together shall be deemed to
constitute one and the same Agreement.

     IN WITNESS WHEREOF, the undersigned hereby execute this Agreement on the
29th day of October, 2002.


                                       GABRIEL CAPITAL CORPORATION

                                       By: /s/ J. Ezra Merkin
                                          --------------------------------------
                                          Name:  J. Ezra Merkin
                                          Title: President


                                           /s/ J. Ezra Merkin
                                          --------------------------------------
                                          J. EZRA MERKIN