61. Letter from L. C. Dunn to Joshua Lederberg Publication: Produced: 14 October 1972 Subject(s): Transformation, GeneticDNA, BacterialHistory of Medicine Archival Collection: The Oswald T. Avery Collection (Profiles in Science)
62. Letter from Joshua Lederberg to Martin R. Pollock Publication: Produced: 20 November 1972 Subject(s): History of Medicine Archival Collection: The Oswald T. Avery Collection (Profiles in Science)
63. Letter from Joshua Lederberg to Carolyn Kopp, Rockefeller University Archives Publication: Produced: 28 September 1983 Subject(s): ArchivesHistory of MedicineHistory, 20th Century Archival Collection: The Joshua Lederberg Papers (Profiles in Science)