Titles
- Letter from Hugh L. Dryden to Joshua Lederberg4
- Letter from J. George Adami to William Osler [Transcript]4
- Letter from Jerome B. Wiesner, President's Scientific Advisory Committee to Joshua Lederberg4
- Letter from John E. Fogarty to Dwight D. Eisenhower4
- Letter from John H. Sullivan to Joshua Lederberg4
- Letter from Joshua Lederberg to Abraham White4
- Letter from Joshua Lederberg to Albert B. Sabin4
- Letter from Joshua Lederberg to Allan M. Campbell4
- Letter from Joshua Lederberg to Andre Boivin4
- Letter from Joshua Lederberg to Arnold W. Ravin4
- Letter from Joshua Lederberg to Arthur R. Jensen4
- Letter from Joshua Lederberg to B. Wesley Catlin4
- Letter from Joshua Lederberg to Barbara McClintock4
- Letter from Joshua Lederberg to Barry Commoner4
- Letter from Joshua Lederberg to Biological Abstracts4
- Letter from Joshua Lederberg to Burton A. Waisbren4
- Letter from Joshua Lederberg to C. E. Clifton4
- Letter from Joshua Lederberg to Charles Gubser4
- Letter from Joshua Lederberg to Christian B. Anfinsen4
- Letter from Joshua Lederberg to Cy Levinthal4