Titles
- 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
- Letter from Joshua Lederberg to Eric French4
- Letter from Joshua Lederberg to Ernst Sorkin4
- Letter from Joshua Lederberg to Esmond E. Snell4
- Letter from Joshua Lederberg to Eugene Garfield, Institute for Scientific Information4