Titles
- Letter from Thomas C. Nelson to Joshua Lederberg13
- Letter from Avram Goldstein to Joshua Lederberg12
- Letter from C. Phillip Miller to Joshua Lederberg12
- Letter from Curt Stern to Joshua Lederberg12
- Letter from F. M. Burnet to Joshua Lederberg12
- Letter from Francis Crick to Joshua Lederberg12
- Letter from Francis Crick to Marshall W. Nirenberg12
- Letter from Michael Doudoroff to Joshua Lederberg12
- Letter from Myron Tribus to Joshua Lederberg12
- Letter from Ntinos C. Myrianthopoulos to Joshua Lederberg12
- Letter from R. A. Brink to Joshua Lederberg12
- Letter from S. Gaylen Bradley to Joshua and Esther Lederberg12
- Letter from Salvador E. Luria to Tracy M. Sonneborn12
- Letter from Seymour S. Cohen to Joshua Lederberg12
- Letter from Shozo Inoki to Joshua Lederberg12
- Letter from Tetsuo Iino to Joshua Lederberg12
- Letter from Tracy M. Sonneborn to Salvador E. Luria12
- Letter from A. Felix to Joshua Lederberg11
- Letter from Alan Garen to Joshua Lederberg11
- Letter from Attallah Kappas to Joshua Lederberg11