1. Letter from Joshua Lederberg to Ralph G. Meader Publication: Produced: 20 November 1947 Subject(s): Escherichia coliMutationTransformation, Genetic Archival Collection: The Joshua Lederberg Papers (Profiles in Science)
2. Letter from Joshua Lederberg to H. J. Conn Publication: Produced: 1 July 1949 Subject(s): Culture MediaEscherichia coli Archival Collection: The Joshua Lederberg Papers (Profiles in Science)
3. Letter from Joshua Lederberg to C. E. Connor Publication: Produced: 9 November 1947 Subject(s): Escherichia coli Archival Collection: The Joshua Lederberg Papers (Profiles in Science)
4. Letter from Joshua Lederberg to Raymond L. Latarjet Publication: Produced: 12 April 1949 Subject(s): Cell Culture TechniquesEscherichia coliLysogenyMutation Archival Collection: The Joshua Lederberg Papers (Profiles in Science)
5. Letter from Joshua Lederberg to Michael Doudoroff Publication: Produced: 9 March 1948 Subject(s): Escherichia coliGenetics, MicrobialMutation Archival Collection: The Joshua Lederberg Papers (Profiles in Science)
6. Letter from Joshua Lederberg to Michael Doudoroff Publication: Produced: 16 July 1948 Subject(s): Cell Culture TechniquesEscherichia coliMutation Archival Collection: The Joshua Lederberg Papers (Profiles in Science)
7. Letter from Joshua Lederberg to M. Demerec Publication: Produced: 6 April 1949 Subject(s): Escherichia coliResearch Personnel Archival Collection: The Joshua Lederberg Papers (Profiles in Science)
8. Letter from Joshua Lederberg to Jacques Monod Publication: Produced: 27 January 1948 Subject(s): Escherichia coliGenetics, MicrobialGalactosidases Archival Collection: The Joshua Lederberg Papers (Profiles in Science)
9. Aberrant Heterozygotes In Escherichia coli Publication: National Academy of Sciences (U.S.), April 1949 Subject(s): Recombination, GeneticEscherichia coli Archival Collection: The Joshua Lederberg Papers (Profiles in Science)