Titles
- Letter from Paul Berg to Julian B. Fleischman1
- Letter from Paul Berg to Leon A. Heppel1
- Letter from Paul Berg to Marianne Grunberg-Manago1
- Letter from Paul Berg to Robert Langridge1
- Letter from Paul Berg to Theodore R. Breitman2
- Letter from Paul Berg to Ulf Lagerkvist1
- Letter from Paul Neiman, Providence Hospital to Harold Varmus1
- Letter from Robert L. Sinsheimer to Paul Berg1
- Letter from Robert Langridge to Paul Berg1
- Letter from Robley Williams to Rosalind Franklin2
- Letter from Rosalind Franklin to Barry Commoner5
- Letter from Rosalind Franklin to Donald L. D. Caspar1
- Letter from Rosalind Franklin to H. Fraenkel-Conrat1
- Letter from Rosalind Franklin to James D. Watson2
- Letter from Rosalind Franklin to John Desmond Bernal1
- Letter from Rosalind Franklin to Robley Williams2
- Letter from Salvador E. Luria to Sol Spiegelman1
- Letter from Severo Ochoa to Arthur Kornberg1
- Letter from Sol Spiegelman to D. H. L. Bishop2
- Letter from Sol Spiegelman to Francis Crick1