1. Letter from Barbara McClintock to Marcus M. Rhoades Publication: Produced: 9 March 1950 Subject(s): MutationGenes, PlantChromosome Breakage Archival Collection: The Barbara McClintock Papers (Profiles in Science)
2. Letter from Barbara McClintock to Charles R. Burnham Publication: Produced: 12 March 1931 Subject(s): ChromosomesGenes, PlantCrossing Over, Genetic Archival Collection: The Barbara McClintock Papers (Profiles in Science)
3. Letter from Barbara McClintock to Charles R. Burnham Publication: Produced: 1 March 1931 Subject(s): ChromosomesGeneticsGenes, Plant Archival Collection: The Barbara McClintock Papers (Profiles in Science)
4. Letter from George W. Beadle to Barbara McClintock Publication: Produced: 22 January 1972 Subject(s): Zea maysGenes, Plant Archival Collection: The Barbara McClintock Papers (Profiles in Science)
5. Draft of letter from Barbara McClintock to Angel Kato Publication: Produced: 1 August 1970 Subject(s): Zea maysChromosomesMaps as TopicGenes, Plant Archival Collection: The Barbara McClintock Papers (Profiles in Science)
6. Letter from Oliver E. Nelson, Jr. to Barbara McClintock Publication: Produced: 13 May 1970 Subject(s): Zea maysGenes, PlantGenetics Archival Collection: The Barbara McClintock Papers (Profiles in Science)
7. Letter from Joshua Lederberg to D. Lewis Publication: Produced: 27 June 1951 Subject(s): Genes, PlantMutation Archival Collection: The Joshua Lederberg Papers (Profiles in Science)
8. Letter from D. Lewis to Joshua Lederberg Publication: Produced: 10 July 1951 Subject(s): Genes, PlantMutation Archival Collection: The Joshua Lederberg Papers (Profiles in Science)