Titles
- Letter from Nicholas Johnson, Federal Communications Commission to Joshua Lederberg4
- Letter from Norman G. Anderson to Joshua Lederberg4
- Letter from Ole Maaloe to Joshua Lederberg4
- Letter from Otto Kandler to Joshua Lederberg4
- Letter from Paul Berg to Joshua Lederberg4
- Letter from Paul Berg to William J. Gartland4
- Letter from Paul N. McCloskey, Jr. to Joshua Lederberg4
- Letter from Peter Mitchell to Joshua Lederberg4
- Letter from Philip H. Abelson to Joshua Lederberg4
- Letter from Phoebe Huang, Comtex Scientific Corporation to Joshua Lederberg4
- Letter from R. A. Brink to Edward L. Tatum4
- Letter from Ralph M. Waters to Virginia Apgar4
- Letter from Richard Goldschmidt to Joshua Lederberg4
- Letter from Richard M. Krause to Joshua Lederberg4
- Letter from Richard W. Lyman to Joshua Lederberg4
- Letter from Richard Willstatter to Michael Heidelberger4
- Letter from Richard Wolfgang to Joshua Lederberg4
- Letter from Rita Levi-Montalcini to Joshua Lederberg4
- Letter from Robert H. Ebert, Milbank Memorial Fund to Joshua Lederberg4
- Letter from Robert Tulasne to Joshua Lederberg4