Titles
- Letter from Francis Crick to Paul Berg9
- Letter from Harriett Ephrussi-Taylor to Joshua Lederberg9
- Letter from Herbert Nagourney, Comtex Scientific Corporation to Joshua Lederberg9
- Letter from Jack L. Strominger to Joshua Lederberg9
- Letter from Joshua Lederberg to A. Felix9
- Letter from Joshua Lederberg to Alan Garen9
- Letter from Joshua Lederberg to Ellis Englesberg9
- Letter from Joshua Lederberg to Harriett Ephrussi-Taylor9
- Letter from Joshua Lederberg to Harrison Brown9
- Letter from Joshua Lederberg to Kenneth Mather9
- Letter from Joshua Lederberg to Kenneth V. Thimann9
- Letter from Joshua Lederberg to Myron Tribus9
- Letter from Joshua Lederberg to Peter Medawar9
- Letter from Joshua Lederberg to Ralph G. Meader9
- Letter from Joshua Lederberg to Robert H. Alway9
- Letter from Joshua Lederberg to S. C. Rittenberg9
- Letter from Joshua Lederberg to William C. Gibson9
- Letter from Joshua Lederberg to Wolfram Heumann9
- Letter from Lawrence L. Weed to Joshua Lederberg9
- Letter from Paul Berg to Michael G. P. Stoker9