Titles
- Letter from Arnold Thackray, Isis to Joshua Lederberg4
- Letter from Arthur E. Rikli to Donald A. B. Lindberg4
- Letter from Barbara E. Wright, Boston Biomedical Research Institute to Joshua Lederberg4
- Letter from Barry Commoner to Joshua Lederberg4
- Letter from Bernard Rimland to Joshua Lederberg4
- Letter from Biological Abstracts to Joshua Lederberg4
- Letter from Bruce Alberts, National Academy of Sciences to Joshua Lederberg4
- Letter from Bruce W. Holloway to Joshua Lederberg4
- Letter from Burton A. Waisbren to Joshua Lederberg4
- Letter from Charles A. Stuart to Joshua Lederberg4
- Letter from Charles C. Brinton, Jr. to Joshua Lederberg4
- Letter from Charles R. Burnham to Barbara McClintock4
- Letter from Charles Yanofsky to Joshua Lederberg4
- Letter from Charlotte A. Colwell to Joshua Lederberg4
- Letter from Chester Bowles to Mary Lasker4
- Letter from Chris D. Calsoyas to Joshua Lederberg4
- Letter from Clarence Dennis to Owen H. Wangensteen4
- Letter from Clifford Grobstein, National Cancer Institute to Joshua Lederberg4
- Letter from Cyril N. Hinshelwood to Joshua Lederberg4
- Letter from D. W. Bruner to Joshua Lederberg4