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EXHIBIT 7
THE XXXXXX X. AND XXXXX X. XXXX FOUNDATION
0000 Xxxxxxxx Xxxxxxx
Xxxxxxxxxxxx Xxxxxxx, Xxxx 00000
December 23, 1996
Xx. Xxxxxx X. Xxxx AP Venture I. Corp.
0000 Xxxxxxxx Xxxxxxx c/o Xxxxxx Xxxx
Xxxxxxxxxxxx Hts., Ohio 44128 Ampco-Pittsburgh Corporation
000 Xxxxx Xxxxxx, 00xx Xxxxx
Xxxxxxxxxx, XX 00000
Gentlemen:
For good and valuable consideration, the receipt and sufficiency of
which is hereby acknowledged, the undersigned hereby agrees to be bound by the
terms of that certain Joint Filing Agreement dated as of October 16, 1996 among
Xxxxxx X. Xxxx, Xxxxxx X. Xxxx, AP Venture I. Corp., The Trustees of Amherst
College, Solway Investments Limited and Pine Street Partners II (the "Group")
pertaining to the statement on Schedule 13D filed on October 16, 1996 filed by
the Group with respect to the Common Stock, $0.01 par value per share, of
Ribozyme Pharmaceuticals, Inc.
Very truly yours,
THE XXXXXX X. AND
XXXXX X. XXXX FOUNDATION
By: /s/ Xxxxxx X. Xxxx
------------------------------
Xxxxxx X. Xxxx, President
ACKNOWLEDGED AND AGREED TO:
/s/ Xxxxxx X. Xxxx
--------------------------------
Xxxxxx X. Xxxx
AP VENTURE I. CORP.
By: /s/ Xxxxxx Xxxx
--------------------------------
Xxxxxx Xxxx, President
