1. Letter from Barbara McClintock to Almiro Blumenschein Publication: Produced: 20 August 1966 Subject(s): ChromosomesZea maysCooperative BehaviorMaps as Topic Archival Collection: The Barbara McClintock Papers (Profiles in Science)
2. Letter from Barbara McClintock to William L. Brown Publication: Produced: 24 July 1974 Subject(s): Zea maysChromosomesMaps as Topic Archival Collection: The Barbara McClintock Papers (Profiles in Science)
3. 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)
