Titles
- Letter from Bernard Rimland to Joshua Lederberg4
- Letter from Chris D. Calsoyas to Joshua Lederberg4
- Letter from Daniel Mazia to Joshua Lederberg4
- Letter from Emile Zuckerkandl to Joshua Lederberg4
- Letter from F. Egami to Joshua Lederberg4
- Letter from Francis Crick to Jacques Monod4
- Letter from Frank Fenner to Joshua Lederberg4
- Letter from Frits and Ida Orskov to Joshua Lederberg4
- Letter from G. A. Derbyshire to Joshua Lederberg4
- Letter from H. Gobind Khorana to Francis Crick4
- Letter from Irena Koprowska to Joshua Lederberg4
- Letter from Jack L. Strominger to Joshua Lederberg4
- Letter from James V. Neel to Joshua Lederberg4
- Letter from John H. Northrop to Joshua Lederberg4
- Letter from John Z. Bowers to Joshua Lederberg4
- Letter from K. P. Wood to Joshua Lederberg4
- Letter from Karl E. Karlson to Clarence Dennis4
- Letter from Leo Szilard to Joshua Lederberg4
- Letter from Maurice B. Visscher to Joshua Lederberg4
- Letter from Maxine Singer to Marianne Grunberg-Manago4