Titles
- Letter from Joshua Lederberg to Abraham White4
- Letter from Joshua Lederberg to Albert B. Sabin4
- Letter from Joshua Lederberg to Alfred E. Mirsky4
- Letter from Joshua Lederberg to Allan M. Campbell4
- Letter from Joshua Lederberg to Andre Boivin4
- Letter from Joshua Lederberg to Arthur R. Jensen4
- Letter from Joshua Lederberg to B. Wesley Catlin4
- 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
- Letter from Joshua Lederberg to David Bazelon4
- Letter from Joshua Lederberg to E. Winslow Turner4
- Letter from Joshua Lederberg to Edward D. Garber4
- Letter from Joshua Lederberg to Edward J. Bloustein4
- Letter from Joshua Lederberg to Elof A. Carlson4
- Letter from Joshua Lederberg to Emil L. Smith4