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     CUSIP No. 922417100                13G                Page 1 of 8 Pages
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                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                  SCHEDULE 13G

                    Under the Securities Exchange Act of 1934

                                (Amendment No. 1)

                             Veeco Instruments, Inc.
                             -----------------------
                                (Name of issuer)

                      Common Stock, $.01 par value per share
                      --------------------------------------
                         (Title of class of securities)

                                   922417100
                                   ---------
                                 (CUSIP number)

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).	

1 NAME OF REPORTING PERSONS S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS

         EQSF Advisers, Inc.
         (EIN 13-3354359)

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  2      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*           (a)  [   ]
                                                                     (b)  [   ]
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  3      SEC USE ONLY

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  4      CITIZENSHIP OR PLACE OF ORGANIZATION

                     New York Corporation

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                                 5      SOLE VOTING POWER

                                                 663,200

          NUMBER OF
                               -------------------------------------------------
                               -------------------------------------------------
            SHARES               6      SHARED VOTING POWER
         BENEFICIALLY
           OWNED BY                                     None
                               -------------------------------------------------
                               -------------------------------------------------
             EACH                7      SOLE DISPOSITIVE POWER
          REPORTING
            PERSON                               663,200

                               -------------------------------------------------
                               -------------------------------------------------
              WITH               8       SHARED DISPOSITIVE POWER

                                                         None
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9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
663,200

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

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
11
4.19%

TYPE OF REPORTING PERSON*
12
IA

*SEE INSTRUCTIONS BEFORE FILLING OUT!

1 NAME OF REPORTING PERSONS S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS
Martin J. Whitman

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  2      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*          (a)  [   ]
                                                                    (b)  [   ]
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  3      SEC USE ONLY

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  4      CITIZENSHIP OR PLACE OF ORGANIZATION

                  USA

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                                 5      SOLE VOTING POWER

          NUMBER OF                              None  (See Item 4)
                               -------------------------------------------------
                               -------------------------------------------------
                                 6      SHARED VOTING POWER
            SHARES
                                                 None
         BENEFICIALLY

           OWNED BY
                               -------------------------------------------------
                               -------------------------------------------------
             EACH                7      SOLE DISPOSITIVE POWER

          REPORTING                              None  (See Item 4)

                               -------------------------------------------------
                               -------------------------------------------------
         PERSON WITH            8       SHARED DISPOSITIVE POWER

                                                 None

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9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
-0- (See Item 4)

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

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 11      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

                  -0-

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 12      TYPE OF REPORTING PERSON*

                  IN	

*SEE INSTRUCTIONS BEFORE FILLING OUT!

Item 1.
 (a) Name of Issuer: Veeco Instruments, Inc. (the "Issuer").

(b) Address of Issuer's Principal Executive Offices: Terminal Drive, Plainview, NY 11803 Item 2.
(a) Name of Person Filing: This schedule is being jointly filed by EQSF Advisers, Inc. ("EQSF"), and Martin J. Whitman, the Chief Executive Officer of EQSF and controlling person of EQSF. (EQSF and Martin J. Whitman are sometimes collectively referred to hereinafter as "Filer"). Attached hereto as an exhibit is a copy of the joint Schedule 13G filing agreement among the reporting persons.

(b) Address of Principal Business Office: The address of the principal executive office of EQSF and Mr. Whitman is: 767 Third Avenue, New York, New York 10017-2023.

(c) Citizenship:
The citizenship or place of organization of each of the reporting persons is as follows:
EQSF
New York State corporation.
Martin J. Whitman
United States citizen.
(d) Title of Class of Securities:
Common Stock, $.01 par value per share.
(e) CUSIP Number:
922417100

Item 3. If this statement is being filed pursuant to Rules 13d-1(b), or 13d-2(b), check whether the person filing is a:

(e) Investment Adviser registered under section 203 of the Investment Advisers Act of 1940 (EQSF).

Item 4. Ownership.
(a) & (b) EQSF beneficially owns 663,200 shares, or 4.19% of the class of securities of the issuer.
(c) (i) EQSF: 663,200
(ii) Not applicable.
(iii) EQSF: 663,200
(iv) Not applicable.
Mr. Whitman disclaims beneficial ownership of all such shares.
Item 5. Ownership of Five Percent or Less of a Class. If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following [ X ]

Item 6. Ownership of More than Five Percent on Behalf of Another Person. Third Avenue Value Fund, an investment company registered under the Investment Company Act of 1940, has the right to receive dividends from, and the proceeds from the sale of 663,200 of the shares reported by EQSF.

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 acquired in the ordinary course of business and were not acquired for the purpose of and do not have the effect of changing or influencing the control of the issuer of such securities and were not acquired in connection with or as a participant in any transaction having such purposes 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.
February 12, 1999
 (Date)
EQSF ADVISERS, INC.

By:/s/   MARTIN J. WHITMAN
Martin J. Whitman
Chairman, President and Chief Executive Officer	

/s/MARTIN J. WHITMAN
Martin J. Whitman	

Exhibit 1
JOINT FILING AGREEMENT
In accordance with Rule 13d-1 (f) under the Securities Exchange Act of 1934, as amended, the undersigned hereby agree to the joint filing with all other Reporting Entities (as such term is defined in the Schedule 13G) on behalf of each of them of a statement on Schedule 13G (including amendments thereto) with respect to the Common Stock, $.01 par value per share, of Veeco Instruments, Inc., and that this Agreement be included as an Exhibit to such joint filing. This Agreement may be executed in any number of counterparts all of which taken together shall constitute one and the same instrument.
IN WITNESS WHEREOF, the undersigned hereby execute this Agreement this 12th day of February, 1999.
EQSF ADVISERS, INC.

By:/s/   MARTIN J. WHITMAN
Martin J. Whitman
Chairman, President and Chief Executive Officer

/s/MARTIN J. WHITMAN
Martin J. Whitman