a4
NATIONAL AERONAUTICS AND SPACE ADMINISTRATION
GODDARD SPACE FLIGHT CENTER
INSTITUTE FOR SPACE STUDIES
NEW YORK, N. Y.
MAIL ADDRESS TELEPHONE
INSTITUTE FOR SPACE STUDIES UNIVERSITY 6-3600

2880 BROADWAY
NEW YORK, N. Y. 10025

17 January 1974

Professor Joshua Lederberg
Department of Genetics
School of Medicine

Stanford University
Standford, California 94305

Dear Professor Lederberg:

I am pleased to enclose a reprint of "A FORTRAN TO FORTRAN OPTIMISING
COMPILER". The program, in working, though not fully debugged form, is
available on magnetic tape. If you desire the program please forward information
concerning tape format (and a tape if possible). We will respond by returning
your tape as soon as possible, or forwarding a tape which may be returned after
the program is retrieved. Documentation (which is quite limited) will also be
sent.

As to your request for the Allen and Cocke paper, I have just contacted

Fran Allen of IBM and she will be sending you the latest revision of the paper
"Graph Theoretic Constructs for Program Control Flow Analysis."

Sincerely yours, ac
/ fo,
Paul B. Schneck

PBS/is
encl,