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

                                  SCHEDULE 13G

                    Under the Securities Exchange Act of 1934
                               (Amendment No. 4)*


                          American Vanguard Corporation
                          -----------------------------
                                (Name of Issuer)

                     Common Stock, $0.10 Par Value per Share
                     ---------------------------------------
                         (Title of Class of Securities)

                                    030371108
                                    ---------
                                 (CUSIP Number)

                                December 31, 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 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).


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Schedule 13G/A

CUSIP No. 030371108

1. Names of Reporting Persons: Jay R. Harris
    I.R.S. Identification Nos. of above persons (entities only): Not Applicable

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: U.S.

Number of                  5.  Sole Voting Power:             289,682
Shares
Beneficially               6.  Shared Voting Power:           --0--
Owned by
Each                       7.  Sole Dispositive Power:        314,074
Reporting
Person With                8.  Shared Dispositive Power:      208,412

9. Aggregate Amount Beneficially Owned by Each Reporting Person: 522,486

10. Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See
  Instructions): [ ]

11. Percent of Class Represented by Amount in Row (9): 8.76%

12. Type of Reporting Person (See Instructions): IN



                                       2


Item 1.

          (a) The name of the issuer is American Vanguard Corporation (the
"Corporation").

          (b) The Corporation's executive office is located at 4695 MacArthur
Court, Newport Beach, California 92660.

Item 2.

          (a) The person filing this statement is Jay R. Harris.

          (b) Mr. Harris' residence is 130 East End Avenue, New York, NY 10028.

          (c) Mr. Harris is a United States citizen.

          (d) The security (the "Security") is common stock, $0.10 par value per
share.

          (e) The CUSIP Number of the Security is 030371108.

Item 3.

          Not applicable.

Item 4.    Ownership

(a) Mr. Harris is the beneficial owner of 522,486 shares of the Security through
the following:

                o  his direct, personal ownership of shares of the Security;

                o  his IRA;

                o  his power of attorney for the management of the account of
the Lily Harris Trust;

                o  his power of attorney for the management of the account of
Melanie Turek;

                o  his power of attorney for the management of the accounts of
 Ann Lozman and her IRA;

                o  his power of attorney for the management of the account of
Emma Lozman;

                o  his power of attorney for the management of the account of
Lesley Ochlis;


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                o  his power of attorney for the management of the accounts of
 Lisa Eng and her IRA;

                o  his power of attorney for the management of the UGMA account
 of Samantha Eng and the UGMA account of George Eng;

                o  his power of attorney for the management of the account of
the IRA of James Harris;

                o  his position as President of The Jay and Sandra Harris
 Foundation;

                o  his position as General Partner of One GT Associates; and

                o  his position as President of Goldsmith & Harris Incorporated
("G&H"), a broker-dealer registered under Section 15 of the Securities Exchange
Act of 1934 and an investment adviser registered under the Investment Advisers
Act of 1940, by virtue of G&H's investment discretion over accounts of its
clients that hold 208,412 shares of the Security.

         The 522,486 shares of the Security of which Mr. Harris is the
beneficial owner includes 2,420 shares of the Security which would be issued
upon the exercise of his options in the Corporation. The determination of the
number of shares of the Security beneficially owned by Mr. Harris and the
percentage such shares represent of all of the outstanding shares of the
Security was made in accordance with Rule 13d-3(d)(1) under the Securities
Exchange Act of 1934.

          (b) The amount of shares of the Security beneficially owned by Mr.
Harris is 8.76% of the total outstanding shares of the Security.

          (c) (i) Mr. Harris has the sole power to vote or to direct the vote of
289,682 shares of the Security.

               (ii) Not applicable.

               (iii) Mr. Harris has the sole power to dispose, or to direct the
disposition, of 314,074 shares of the Security.

               (iv) Mr. Harris shares with G&H the power to dispose, or to
direct the disposition, of 208,412 shares of the Security.

Item 5.  Ownership of Five Percent or Less of a Class

            Not applicable.




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Item 6.  Ownership of More than Five Percent on Behalf of Another Person.

            The clients of G&H, the Lily Harris Trust, Melanie Turek, Ann Lozman
and her IRA, Emma Lozman, Lesley Ochlis, Lisa Eng and her IRA, Samantha Eng's
UGMA account, George Eng's UGMA account, the IRA of James Harris, The Jay and
Sandra Harris Foundation and One GT Associates may have the right to receive or
the power to direct the receipt of dividends from, or the proceeds from the sale
of, shares of the Security. None of these persons has an interest in 5% or more
of the total outstanding shares of the Security.

Item 7.  Identification and Classification of the Subsidiary Which Acquired the
Security  Being  Reported  on By the Parent Holding Company.

            See Exhibit A.

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.


                                    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.


Date:  February 12, 2004

                                  /s/ Jay R. Harris
                                  -------------------------------
                                  Jay R. Harris




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                                    EXHIBIT A

Jay R. Harris may, through his position as President of Goldsmith & Harris
Incorporated ("G&H"), a broker-dealer registered under Section 15 of the
Securities Exchange Act of 1934 and an investment adviser registered under
Section 203 of the Investment Advisers Act of 1940, be deemed a control person
of G&H.