Titles
- Letter from Victor J. Freeman to Joshua Lederberg2
- E-mail from Joshua Lederberg to Richard M. Burian1
- Human Beings in a World of Arrogance and International Machoism (Letter to the Editor of the Baltimore Sun)1
- Letter from "Anna" to Michael Heidelberger1
- Letter from A. M. Pappenheimer, Jr. to Joshua Lederberg1
- Letter from Admiral James D. Watkins to Joshua Lederberg1
- Letter from Alex Nickon to Joshua Lederberg1
- Letter from Alvin M. Mauer to Joshua Lederberg1
- Letter from Anthony Fauci to Joshua Lederberg1
- Letter from Arnold O. Beckman to Joshua Lederberg1
- Letter from Bernard D. Davis to Joshua Lederberg1
- Letter from Bernard D. Davis to the New York Times1
- Letter from Boris Magasanik to Joshua Lederberg1
- Letter from C. Wayne Bardin to Joshua Lederberg1
- Letter from Charles Yanofsky to Joshua Lederberg1
- Letter from Chen-Lu Tsou to Joshua Lederberg1
- Letter from Christian B. Anfinsen to Henry Margenau1
- Letter from Christian B. Anfinsen to Mark L. Pearson1
- Letter from Christian B. Anfinsen to Philip Leder1
- Letter from Christian B. Anfinsen to President of Turkey, Prime Minister of Turkey1