1. Letter from Barbara McClintock to Joshua Lederberg Publication: Produced: 8 November 1948 Subject(s): Recombination, GeneticRing ChromosomesCrossing Over, Genetic Archival Collection: The Barbara McClintock Papers (Profiles in Science)
2. Proposed Outline: Introduction to Microbial Genetics Publication: Produced: 1948 Archival Collection: The Joshua Lederberg Papers (Profiles in Science)