Titles
- Letter from Alexander Wiley to Joshua Lederberg3
- Letter from Anonymous to Joshua Lederberg1
- Letter from Arthur Kornberg to Avram Goldstein1
- Letter from Arthur Kornberg to Frederick E. Terman1
- Letter from Arthur Kornberg to Henry S. Kaplan1
- Letter from Arthur Kornberg to Joshua Lederberg9
- Letter from Arthur Kornberg to the editors of the Journal of Biological Chemistry1
- Letter from Aura E. Severinghaus to Joshua Lederberg1
- Letter from Avram Goldstein to Arthur Kornberg1
- Letter from Avram Goldstein to Joshua Lederberg1
- Letter from B. O. Rogers to Joshua Lederberg1
- Letter from Barbara Holcman de Spector to Joshua Lederberg1
- Letter from Barna Gyorffy to Joshua Lederberg1
- Letter from Barton Childs to Joshua Lederberg3
- Letter from Bernard D. Davis to Joshua Lederberg8
- Letter from Bernard Jaffe to Joshua Lederberg1
- Letter from Bernard O. Dodge to Joshua and Esther Lederberg1
- Letter from Boris Ephrussi to Joshua Lederberg4
- Letter from Boris Rotman to Joshua Lederberg5
- Letter from Boris Rotman to Joshua and Esther Lederberg1