Titles
- Letter from Joshua Lederberg to Alexander D. Forger11
- Letter from Joshua Lederberg to Barbara J. Bachmann11
- Letter from Joshua Lederberg to C. C. Lindegren11
- Letter from Joshua Lederberg to Frank Fenner11
- Letter from Joshua Lederberg to Gaylord Nelson11
- Letter from Joshua Lederberg to Harriet Zuckerman11
- Letter from Joshua Lederberg to John Burton Sanderson Haldane11
- Letter from Joshua Lederberg to Orio Ciferri11
- Letter from Kenneth V. Thimann to Joshua Lederberg11
- Letter from Lloyd V. Berkner to Joshua Lederberg11
- Letter from Melvin Cohn to Joshua Lederberg11
- Letter from O. H. Frankel to Joshua Lederberg11
- Letter from Palmer David Skaar to Joshua Lederberg11
- Letter from Pierre Fredericq to Joshua Lederberg11
- Letter from R. G. E. Murray to Joshua Lederberg11
- Letter from Ruggero Ceppellini to Joshua Lederberg11
- Letter from Sydney D. Rubbo to Joshua Lederberg11
- Nursery school11
- [Bartholomew W. Hogan]11
- [Eugenia Broughton]11