Titles
- Letter from Maxine Singer to the editor of The Washington Post1
- Letter from Michael E. DeBakey to Donald A. B. Lindberg1
- Letter from Monica Riley, Marine Biological Laboratory to Joshua Lederberg1
- Letter from Nancy S. Wexler to the ELSI Working Group1
- Letter from Nils Fries to Joshua Lederberg1
- Letter from Pablo Rubinstein to Joshua Lederberg1
- Letter from Paul B. Ferrara to Oskar R. Zaborsky and Victor A. McKusick1
- Letter from Paul J. Sanazaro to Donald A. B. Lindberg1
- Letter from Peter T. Magee to Joshua Lederberg1
- Letter from Philip R. Lee to Donald A. B. Lindberg1
- Letter from Ralph Engle to Donald A. B. Lindberg1
- Letter from Richard E. Smalley to Joshua Lederberg1
- Letter from Robert H. Haynes to Joshua Lederberg1
- Letter from S. K. Bagchi to Joshua Lederberg1
- Letter from Sol J. Barer, Celgene Corporation to Joshua Lederberg1
- Letter from Stephen L. McFarland to Joshua Lederberg1
- Letter from Thomas H. Jukes to Joshua Lederberg1
- Letter from Vernon E. Wilson to Donald A. B. Lindberg1
- Letter from Victor A. McKusick to Bronwen Loder1
- Letter from Victor A. McKusick to Diane Hinton1