31. Letter from Joshua Lederberg to Robert J. Mandle Publication: Produced: 9 June 1949 Subject(s): Cell Culture TechniquesGenetics, MicrobialMutation Archival Collection: The Joshua Lederberg Papers (Profiles in Science)
32. Letter from Robert J. Mandle to Joshua Lederberg Publication: Produced: 17 June 1949 Subject(s): Cell Culture TechniquesGenetics, MicrobialMutation Archival Collection: The Joshua Lederberg Papers (Profiles in Science)
33. Letter from Ilda McVeigh to Joshua Lederberg Publication: Produced: 4 November 1948 Subject(s): Cell Culture Techniques Archival Collection: The Joshua Lederberg Papers (Profiles in Science)
34. Letter from Joshua Lederberg to Ilda McVeigh Publication: Produced: 22 November 1948 Subject(s): Cell Culture TechniquesMutation Archival Collection: The Joshua Lederberg Papers (Profiles in Science)
35. Letter from I. D. Michelson to Joshua Lederberg Publication: Produced: 26 January 1949 Subject(s): Cell Culture TechniquesGenesMutation Archival Collection: The Joshua Lederberg Papers (Profiles in Science)
36. Letter from Joshua Lederberg to I. D. Michelson Publication: Produced: 4 October 1949 Subject(s): Cell Culture TechniquesResearch Archival Collection: The Joshua Lederberg Papers (Profiles in Science)
37. Letter from I. D. Michelson to Joshua Lederberg Publication: Produced: 10 October 1949 Subject(s): Cell Culture Techniques Archival Collection: The Joshua Lederberg Papers (Profiles in Science)
38. Letter from Joshua Lederberg to M. Demerec Publication: Produced: 17 February 1949 Subject(s): BacteriophagesCell Culture TechniquesRecombination, Genetic Archival Collection: The Joshua Lederberg Papers (Profiles in Science)
39. Letter from Joshua Lederberg to Jacques Monod Publication: Produced: 29 June 1947 Subject(s): Cell Culture TechniquesMutation Archival Collection: The Joshua Lederberg Papers (Profiles in Science)
40. Letter from Joshua Lederberg to Jacques Monod Publication: Produced: 4 November 1947 Subject(s): Cell Culture TechniquesMutation Archival Collection: The Joshua Lederberg Papers (Profiles in Science)