MASSACHUSETTS INSTITUTE OF TECHNOLOGY DEPARTMENT OF BIOLOGY CAMBRIDGE 39, MASSACHUSETTS September 27, 1960 Dr. J. Lederberg Department of Genetics School of Medicine Stanford University Medical Center Palo Alito, California Dear Joshua, Thank you for sending me the material regarding the Exobiology Committee. I do not think I can attend but I appreciate receiving this stuff. I will read it in advance of your meeting and if I have any suggestion I shall write you. Best regards, Sincerely yours, hoe sel/na S. HE. Lurta yt haul 3747 Cf ated