MORGAN STANLEY DEAN WITTER MIDCAP GROWTH FUND, 497J, 1998-07-29

MORGAN STANLEY DEAN WITTER MIDCAP GROWTH FUND
497J, 1998-07-29

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         MORGAN STANLEY DEAN WITTER MID-CAP GROWTH FUND
                     TWO WORLD TRADE CENTER
                    NEW YORK, NEW YORK 10048







                                                July 29, 1998



Securities and Exchange Commission
450 Fifth Street, N.W.
Washington, D.C.  20549

Re:  Morgan Stanley Dean Witter Mid-Cap Growth Fund
     File 33-53955
     Rule 497(j) Filing

Dear Sir/Madam:

      On behalf of the Registrant, the undersigned certifies that
the  form  of  Prospectus and Statement of Additional Information
that  would have been filed under Section 497(c) would  not  have
differed  from  those contained in the text of  the  Registrant's
most  recent registration statement that was filed electronically
via Edgar with the Securities and Exchange Commission on July 27,
1998.


                                   Very truly yours,
                               /s/Carsten Otto
                                   Carsten Otto
                                   Assistant Secretary





cc: Randolph Koch
    Barry Fink