Titles
- Letter from James B. Hunt, Jr. to Joshua Lederberg2
- Letter from James Gutmann to Joshua Lederberg2
- Letter from Jerald S. Feitelson to Joshua Lederberg2
- Letter from Kao Shang Yin to Joshua Lederberg2
- Letter from Luca Cavalli-Sforza to Joshua Lederberg2
- Letter from M. D. Fagen, Bell Telephone Labs to Joshua Lederberg2
- Letter from Orio Ciferri to Joshua Lederberg2
- Letter from Robert Michels to Joshua Lederberg2
- Letter from Roger M. Herriott to Joshua Lederberg2
- Letter from Sylvia Frank to Joshua Lederberg2
- Letter from W. Gordon Whaley to Patrick E. Haggerty2
- Letter from William T. Golden to Joshua Lederberg2
- Draft of letter on recombinant DNA legislation (with edits by Daniel Nathans)1
- Letter from "Tired of Genetic Myths" to Ann Landers1
- Letter from Aaron Novick to Joshua Lederberg1
- Letter from Abraham Penzer to Joshua Lederberg1
- Letter from Abraham White to Joshua Lederberg1
- Letter from Albert Ammerman to Joshua Lederberg1
- Letter from Alexander G. Bearn to Joshua Lederberg1
- Letter from Arthur Kornberg to Senator Edward M. Kennedy1