1. Letter from Allen G. Marr to Joshua Lederberg Publication: Produced: 5 September 1952 Subject(s): Genetics, MicrobialEquipment and SuppliesStaining and Labeling Archival Collection: The Joshua Lederberg Papers (Profiles in Science)
2. Letter from Joshua Lederberg to R. G. E. Murray Publication: Produced: 12 November 1953 Subject(s): Genetics, MicrobialStaining and Labeling Archival Collection: The Joshua Lederberg Papers (Profiles in Science)
3. Letter from R. G. E. Murray to Joshua Lederberg Publication: Produced: 24 November 1953 Subject(s): Genetics, MicrobialStaining and Labeling Archival Collection: The Joshua Lederberg Papers (Profiles in Science)
4. Letter from Joshua Lederberg to R. G. E. Murray Publication: Produced: 15 March 1954 Subject(s): Genetics, MicrobialCell BiologyStaining and Labeling Archival Collection: The Joshua Lederberg Papers (Profiles in Science)