1. Letter from Joshua Lederberg to Gordon Allen Publication: Produced: 26 February 1951 Subject(s): Research Design Archival Collection: The Joshua Lederberg Papers (Profiles in Science)
2. Letter from Raymond L. Latarjet to Esther Lederberg Publication: Produced: 4 December 1951 Subject(s): LysogenyRadiationResearch Design Archival Collection: The Joshua Lederberg Papers (Profiles in Science)
3. Letter from Robert Paul Levine to Joshua and Esther Lederberg Publication: Produced: 2 September 1951 Subject(s): MethodsResearch Design Archival Collection: The Joshua Lederberg Papers (Profiles in Science)
4. Letter from Joshua Lederberg to Werner K. Maas Publication: Produced: 8 July 1951 Subject(s): Genetics, MicrobialRecombination, GeneticResearch Design Archival Collection: The Joshua Lederberg Papers (Profiles in Science)
5. Letter from Joshua Lederberg to Mario U. Dianzani Publication: Produced: 9 January 1951 Subject(s): Escherichia coliMutationResearch Design Archival Collection: The Joshua Lederberg Papers (Profiles in Science)