Titles
- Letter from John Z. Bowers, Josiah Macy, Jr. Foundation to Joshua Lederberg3
- Letter from Joseph C. Hinsey to Joshua Lederberg3
- Letter from Joseph F. Fraumeni, Jr., National Cancer Institute to Joshua Lederberg3
- Letter from Joseph Tomcsik to Joshua Lederberg3
- Letter from Joshua Lederberg to A. A. Buzzati-Traverso3
- Letter from Joshua Lederberg to A. H. Doermann3
- Letter from Joshua Lederberg to A. M. Pappenheimer, Jr.3
- Letter from Joshua Lederberg to Aaron Wildavsky, Russell Sage Foundation3
- Letter from Joshua Lederberg to Alan Cranston3
- Letter from Joshua Lederberg to Albert Tyler3
- Letter from Joshua Lederberg to Alejandro Zaffaroni, Alza Corporation3
- Letter from Joshua Lederberg to Alexander Bodi, Palo Alto Times3
- Letter from Joshua Lederberg to Alexander G. Bearn3
- Letter from Joshua Lederberg to Alexander Tomasz3
- Letter from Joshua Lederberg to Alexander Wiley3
- Letter from Joshua Lederberg to Alfred A. Knopf, Inc.3
- Letter from Joshua Lederberg to Anonymous3
- Letter from Joshua Lederberg to Arie J. Haagen-Smit3
- Letter from Joshua Lederberg to Armin C. Braun3
- Letter from Joshua Lederberg to Arno G. Motulsky3