Titles
- Letter from Curt Stern to Joshua Lederberg1
- Letter from D'Ann B. Downey, Stanford University to the United States Department of Health, Education, and Welfare1
- Letter from Daniel Nathans to Paul Berg1
- Letter from David R. Goddard to Joshua Lederberg1
- Letter from Donald S. Fredrickson to Daniel E. Koshland, Jr1
- Letter from Douglas E. Dorman, Lilly Research Laboratories to Raymond E. Carhart1
- Letter from E. B. Fred to Joshua Lederberg1
- Letter from Edward A. Adelberg to Joshua Lederberg1
- Letter from Edward M. Kennedy and Jacob K. Javits, United States Senate to President Gerald R. Ford1
- Letter from Edward M. Kennedy, United States Senate Committee on Labor and Public Welfare to Donald S. Fredrickson1
- Letter from Eloise R. Giblett to Victor A. McKusick1
- Letter from Elsevier/North-Holland Biomedical Press to Joshua Lederberg1
- Letter from Ephraim Katchalski-Katzir to Joshua Lederberg1
- Letter from Ernest Winocour to Maxine Singer1
- Letter from Esmond E. Snell to Joshua Lederberg1
- Letter from Francesco Blasi to Maxine Singer1
- Letter from Francine Robinson Simring to Robert Ubell, The Sciences1
- Letter from Francis Crick to Aaron Klug1
- Letter from Francis Crick to Karl Popper1
- Letter from Francis Crick to Marianne Grunberg-Manago1