aid Sle og ; Memo from ' Toy Kk rs | JOSHUA LEDERBERG | , ey. oD i _) mtem S antigens fo ires Cs birst rblde on insipid peumvile m wearklmnl fAuerere ” Ly ba TDing - Sanpetice | ©F 3 arrd Sith Th. 189¢ (Tem. lm. Aaere. Pheer, 9:85) whe uyshe wrt bee er fed eter of thse (dep 1980)" t ROFESSOR JOSHUA LEDERBERG Department of Genetics School of Medicine Stanford University Stanford, California 94305