Titles
- Letter from Erling Norrby, Department of Virology, Karolinska Institute to Harold Varmus1
- Letter from Ernest C. Miller, American Management Association to Judith N. Schwartz1
- Letter from Ernst Friedheim to Joshua Lederberg1
- Letter from Eugene Garfield to Joshua Lederberg1
- Letter from F. Eugene Yates to Joshua Lederberg1
- Letter from Frank Press, National Academy of Sciences to Marshall W. Nirenberg2
- Letter from Giora Hon to Joshua Lederberg1
- Letter from Harold Varmus to Erling Norrby, Department of Virology, Karolinska Institute1
- Letter from Harold Varmus to John Garamendi, California State Senate1
- Letter from I. Bernard Cohen to Joshua Lederberg and Harriet Zuckerman1
- Letter from Ibrahim M. Khatri to Edward D. Freis1
- Letter from Israel Halperin to Marshall W. Nirenberg1
- Letter from Ivan L. Bennett, Jr. to Joshua Lederberg1
- Letter from J. Kissel and Franz R. Krueger to Joshua Lederberg1
- Letter from James F. Crow to Joshua Lederberg2
- Letter from James Murray Luck to Joshua Lederberg1
- Letter from James W. Larrick to Joshua Lederberg1
- Letter from Jay N. Cohn to Edward D. Freis1
- Letter from Jean Brachet to Joshua Lederberg1
- Letter from Jeanne Walters to John A. Moore1