Titles
- Letter from C. Everett Koop to United States Postmaster General Robert Tisch1
- Letter from Carol M. Sussman, American Red Cross to Michael Samuels1
- Letter from David A. Hounshell to Joshua Lederberg2
- Letter from David Baltimore, Whitehead Institute to Harold Varmus1
- Letter from David Schiff to Marshall W. Nirenberg1
- Letter from Edward D. Frohlich to Edward D. Freis1
- Letter from Edward P. Mulvey and Jeffrey L. Haugaard, University of Pittsburgh School of Medicine to C. Everett Koop1
- Letter from Edwin C. Whitehead and Paul G. Rogers to Marshall W. Nirenberg1
- Letter from Edwin C. Whitehead to Marshall W. Nirenberg1
- Letter from Elie A. Shneour to Joshua Lederberg1
- Letter from Eliot Stellar to Marshall W. Nirenberg1
- Letter from F. Gilbert McMahon to Edward D. Freis1
- Letter from Frank A. Finnerty, Jr. to Edward D. Freis1
- Letter from Frank Press, National Academy of Sciences to Joshua Lederberg1
- Letter from Fred C. Ikle to Joshua Lederberg1
- Letter from Garland E. Allen to Joshua Lederberg1
- Letter from Gary B. MacDonald, AIDS Action Council to C. Everett Koop1
- Letter from George Wald to Joshua Lederberg1
- Letter from Georgetown University Department of Biology to Marshall W. Nirenberg1
- Letter from Gil Gerald, National Coalition of Black Lesbians and Gays to C. Everett Koop1