MAR 2 41975: {MASSACHUSETTS 545 Technology Square INSTITUTE OF TECHNOLOGY Cambridge, Massachusetts 02139 PROJECT MAC Telephone: 617-253-5898 March 18, 1975 Dr. Joshua Lederberg Stanford University School of Medicine Department of Genetics Stanford University Palo Alto, California 94305 Dear Dr. Lederberg: lea, Thank you for your recent letter regarding SUMEX. I am happy to accept your suggestion that we use your facilitTés in a limited way. I have asked Howard Silverman to contact Dr. Levinthal and establish the appropriate connections. I am interested in using SUMEX facilities myself and I look forward with interest to this experiment. Sincerely, Tres Gr G. Anthony Gorry | Associate Professor of Computer Science and Engineering GAG :mc