- Letter from Christian B. Anfinsen to Alexander Mikhailovich Rekunkov1
- Letter from David Kalergis to Joshua Lederberg1
- Letter from Denton A. Cooley to Henry Swan1
- Letter from Diane L. Schweber to C. Everett Koop1
- Letter from Donald A. Glaser to Joshua Lederberg1
- Letter from Donald C. Harrison, American Heart Association to Edwin Meese1
- Letter from Donald S. Fredrickson to Evelyn Attix, National Institutes of Health1
- Letter from Donald W. Denny, University of Pittsburgh School of Medicine to C. Everett Koop1
- Letter from Dwight E. Harken to Henry Swan1
- Letter from Edmund C. Casey, American Lung Association to President Ronald Reagan1
- Letter from Edward D. Viner to C. Everett Koop1
- Letter from Edwin C. Whitehead to Joshua Lederberg1
- Letter from Edwin C. Whitehead, Whitehead Associates, Inc. to Joshua Lederberg1
- Letter from Enrique J. A. Carregal to Joshua Lederberg1
- Letter from Eugene Garfield, Institute for Scientific Information to Frank Press, National Academy of Sciences1
- Letter from Evelyn Witkin to Joshua Lederberg1
- Letter from Floyd L. Culler, Electric Power Research Institute to John E. Bryson, California Public Utility Commission1
- Letter from Frank Press, National Academy of Sciences to Eugene Garfield, Institute for Scientific Information1
- Letter from Frederick Plotkin, Comtex Scientific Corporation to Joshua Lederberg1
- Letter from Frederick de Hoffman, Salk Institute for Biological Studies to Charles S. Smith, System Development Foundation1