Titles
- Letter from Joshua Lederberg to Roger Y. Stanier19
- Letter from Louis S. Baron to Joshua Lederberg19
- Letter from Martin M. Kaplan, World Health Organization to Joshua Lederberg19
- Letter from Ralph G. Meader to Joshua Lederberg19
- Letter from Tracy M. Sonneborn to M. Demerec19
- Letter from Aleck Bernstein to Joshua Lederberg18
- Letter from Barbara J. Bachmann to Joshua Lederberg18
- Letter from Hilary Koprowski to Joshua Lederberg18
- Letter from Joshua Lederberg to G. J. V. Nossal, Walter & Eliza Hall Institute of Medical Research18
- Letter from Joshua Lederberg to Herman M. Kalckar18
- Letter from Joshua Lederberg to Howard Simons, Washington Post18
- Letter from Joshua Lederberg to Norman H. Horowitz18
- Letter from Joshua Lederberg to Philip Handler18
- Letter from Kimball Atwood to Joshua Lederberg18
- Letter from Peter Medawar to Joshua Lederberg18
- Letter from Yukinori Hirota to Joshua Lederberg18
- Letter from A. D. Hershey to Joshua Lederberg17
- Letter from Ann Landers to Joshua Lederberg17
- Letter from Charles R. Drew to Lenore (Robbins) Drew17
- Letter from Florence R. Sabin to Mary Sabin17