Titles
- Letter from Boris Ephrussi to Joshua Lederberg4
- Letter from Clifford Grobstein to Joshua Lederberg4
- Letter from Francis J. Ryan to Joshua Lederberg4
- Letter from Herman M. Kalckar to Joshua Lederberg4
- Letter from Jacqueline St. Clair to Joshua Lederberg4
- Letter from James D. Watson to Joshua Lederberg4
- Letter from Joshua Lederberg to Boris Ephrussi4
- Letter from Joshua Lederberg to Edward L. Tatum4
- Letter from Joshua Lederberg to James D. Watson4
- Letter from Joshua Lederberg to John Yudkin4
- Letter from Joshua Lederberg to Kenneth V. Thimann4
- Letter from Joshua Lederberg to Otto Kandler4
- Letter from Joshua Lederberg to Stephen Fazekas, John Curtin School of Medical Research4
- Letter from Kenneth McQuillen to Joshua Lederberg4
- Letter from W. H. Freeman, W. H. Freeman and Company to Joshua Lederberg4
- Letter from Werner Braun to Joshua Lederberg4
- Letter from Arthur Kornberg to Joshua Lederberg3
- Letter from Barbara Atwood to Joshua and Esther Lederberg3
- Letter from Bruce W. Holloway to Joshua Lederberg3
- Letter from F. C. Bawden to Rosalind Franklin3