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                                  SCHEDULE 14A
                                 (RULE 14A-101)
 
                    INFORMATION REQUIRED IN PROXY STATEMENT
 
                            SCHEDULE 14A INFORMATION
 
          PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES
                EXCHANGE ACT OF 1934 (AMENDMENT NO.           )
 
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                          ENVIRODYNE INDUSTRIES, INC.
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                (Name of Registrant as Specified in its Charter)
 
                               ZAPATA CORPORATION
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                              [Zapata Letterhead]



May 15, 1997




VIA FACSIMILE (630-571-0959)

Mr. F. Edward Gustafson
Chairman of the Board, Chief Executive Officer and President
Envirodyne Industries, Inc.
701 Harger Road, Suite 190
Oak Brook, Illinois  60521

Dear Mr. Gustafson:

To allay any concern that Zapata would not proceed with its proposal conveyed
to you yesterday for a merger in which stockholders of Envirodyne would receive
consideration valued at $8 per share, Zapata undertakes that if Zapata should
withdraw its proposal at any time prior to November 15, 1997 (which Zapata does
not intend to do if its slate of directors is elected at tomorrow's meeting),
one of Zapata's designees on the board of directors of Envirodyne would resign,
and Zapata's remaining designees on the board would vote in favor of a
replacement director designated by the directors not affiliated with Zapata.

Sincerely,

/s/ AVRAM A. GLAZER

Avram A. Glazer