1933 Act Rule 497(j)
1933 Act File No. 002-73948
1940 Act File No. 811-03258
STRADLEY, RONON, STEVENS & YOUNG, LLP
2600 One Commerce Square
Philadelphia, PA 19103
(215) 564-8000
Direct Dial: (215) 564-8077
September 16, 1999
FILED via EDGAR
U.S. Securities and Exchange Commission
450 Fifth Street, N.W.
Washington, D.C. 20549
Attn: Filing Desk
Re: DFA Investment Dimensions Group Inc.
File Nos. 002-73948 and 811-03258
Rule 497(j) Filing
Ladies and Gentlemen:
Pursuant to Rule 497(j) under the Securities Act of 1933, as amended,
this letter serves as certification that the form of Prospectus and Statement of
Additional Information that would have been filed under paragraph (c) of Rule
497 would not have differed from those contained in Post-Effective Amendment
Nos. 55/56 to the Registration Statement of DFA Investment Dimensions Group Inc.
which was filed with the Securities and Exchange Commission electronically on
September 13, 1999.
Please direct any questions or comments relating to this certification
to me or, in my absence, to Mark A. Sheehan, Esquire at (215) 564-8027.
Very truly yours,
LISA M. KING
Lisa M. King
cc: Catherine L. Newell, Esquire
Ms. Jessica Y. Gray
Stephen W. Kline, Esquire
Mark A. Sheehan, Esquire
