Titles
- Letter from Joshua Lederberg to William D. McElroy6
- Letter from Joshua Lederberg to William Gorham6
- Letter from Joshua Lederberg to William O. Baker6
- Letter from Joshua Lederberg to William T. Golden6
- Letter from Matthew Meselson to Joshua Lederberg6
- Letter from Michael S. Gazzaniga to Joshua Lederberg6
- Letter from Paul Berg to Francis Crick6
- Letter from Rebecca W. Rimel, Pew Charitable Trusts to Joshua Lederberg6
- Letter from Robert H. Alway to Joshua Lederberg6
- Letter from Royston C. Clowes to Joshua Lederberg6
- Letter from Stephen Zamenhof to Joshua Lederberg6
- Letter from Vittorio Sgaramella to Joshua Lederberg6
- Letter from W. W. Wilkerson to John E. Fogarty6
- Memorandum from Elliott C. Levinthal to Joshua Lederberg6
- Memorandum from Joshua Lederberg to Clayton Rich6
- Postcard from Aaron Novick to Joshua Lederberg6
- Postcard from Gordon Allen to Joshua Lederberg6
- Route slip6
- Safer sex, keep it up!6
- Schutz aus Liebe6