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)...

    

                                                                 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/   XXXXXX X. XXXXXXX
                                Xxxxxx X. Xxxxxxx
                                Chairman, President and Chief Executive Officer




                                /s/XXXXXX X. XXXXXXX
                                Xxxxxx X. Xxxxxxx