Memo from To: C ' {> . Jaen WK 2 p JOSHUA LEDERBERG Deer Kero DEC 1 3 1973 Ae be Kith OH portly Wee{ Ghee r4d fpbled in rene San ps tertice” , whe Wt 2x2 et Ca paape Wrorr). E Catt Batisoteash t, PROFESSOR JOSH WK, LEDERBERG Department of Génetics School of Medicine Stanford University Stanford, California 94305