1. Letter from Joshua Lederberg to H. J. Muller Publication: Produced: 15 March 1950 Subject(s): Mutagenicity TestsResearch Design Archival Collection: The Joshua Lederberg Papers (Profiles in Science)
2. Letter from H. J. Muller to Joshua Lederberg Publication: Produced: 16 March 1950 Subject(s): Mutagenicity TestsResearch Design Archival Collection: The Joshua Lederberg Papers (Profiles in Science)