Memo fro m To: Quska JOSHUA LEDERBERG ( Crt. | Gry Areed. Ad As f ATCU + : a) Qa ste. Hew L Huviebe CO) umd b) Som Hota put Vagal AP cali s tl prorab prea Lis fg hag fhe v AG wneud wan 8-2 vast fen 37" ā€” Daare2 ul fo suw-whu . "TF ph Aas, Ficoll, Ps TN TT PoAants PROFESSOR JOSHUA LEDERBERG . Department of Genetics j > School of Medicine / Stanford University Stanford, California 3 uā€œ