Titles
- Letter from Committee of Concerned Scientists, Inc. (re: Vladimir Raiz)1
- Letter from Daniel E. Koshland, Jr., Science Magazine to Joshua Lederberg1
- Letter from Daniel L. Hartl to Joshua Lederberg1
- Letter from David J. Weatherall to Victor A. McKusick1
- Letter from David M. Abshire, Center for Strategic and International Studies to Joshua Lederberg1
- Letter from Debra Jan Bibel to Joshua Lederberg1
- Letter from Edward M. Johnson to Joshua Lederberg3
- Letter from Edwin C. Whitehead to Joshua Lederberg3
- Letter from Elie Wiesel to Joshua Lederberg1
- Letter from Emilio Weiss to Joshua Lederberg1
- Letter from Ernst Friedheim to Joshua Lederberg1
- Letter from G. J. V. Nossal to Joshua Lederberg1
- Letter from G.B. Marini-Bettolo, Pontifical Academy of Sciences to Marshall W. Nirenberg1
- Letter from Guillermo Soberon, National University of Mexico to Joshua Lederberg1
- Letter from Haruhiro Higashida to Marshall W. Nirenberg1
- Letter from Henry Margenau to Christian B. Anfinsen1
- Letter from Howard I. Adler to Joshua Lederberg1
- Letter from Ira Michael Heyman to Joshua Lederberg1
- Letter from James F. Crow to Joshua Lederberg2
- Letter from John A. Moore to Joshua Lederberg1