21. Letter from Barbara McClintock to Charles R. Burnham Publication: Produced: 23 January 1930 Subject(s): Zea maysChromosomesCrossing Over, GeneticJob Satisfaction Archival Collection: The Barbara McClintock Papers (Profiles in Science)
22. Letter from Barbara McClintock to Charles R. Burnham Publication: Produced: 11 April 1931 Subject(s): Zea maysChromosomes Archival Collection: The Barbara McClintock Papers (Profiles in Science)
23. Letter from Barbara McClintock to Charles R. Burnham Publication: Produced: 12 May 1931 Subject(s): ChromosomesZea maysGenetics Archival Collection: The Barbara McClintock Papers (Profiles in Science)
24. Letter from Barbara McClintock to Charles R. Burnham Publication: Produced: 30 July 1931 Subject(s): GeneticsZea maysChromosomes Archival Collection: The Barbara McClintock Papers (Profiles in Science)
25. The Correlation of Cytological and Genetical Crossing-Over in Zea Mays. A Corroboration Publication: National Academy Press (U.S.), 1935 Subject(s): Zea maysCrossing Over, GeneticChromosomesGenes, Plant Archival Collection: The Barbara McClintock Papers (Profiles in Science)
26. Letter from Barbara McClintock to Charles R. Burnham Publication: Produced: 8 August 1931 Subject(s): ChromosomesGeneticsZea mays Archival Collection: The Barbara McClintock Papers (Profiles in Science)
27. Letter from Barbara McClintock to Charles R. Burnham Publication: Produced: 25 September 1931 Subject(s): Zea maysChromosomesCrossing Over, Genetic Archival Collection: The Barbara McClintock Papers (Profiles in Science)
28. The Correlation of Cytological and Genetical Crossing-Over in Zea Mays. A Corroboration Publication: Produced: 1935 Subject(s): Crossing Over, GeneticZea maysCytogeneticsChromosomes Archival Collection: The Barbara McClintock Papers (Profiles in Science)
29. A 2N-1 Chromosomal Chimera in Maize Publication: Oxford University Press For The American Genetic Association, 1929 Subject(s): Zea maysChromosomesMeiosis Archival Collection: The Barbara McClintock Papers (Profiles in Science)
30. Cytogenetic Studies of Maize and Neurospora Publication: Carnegie Institution of Washington, 1947 Subject(s): MutationCytogeneticsZea maysStaining and LabelingChromosomesNeurospora Archival Collection: The Barbara McClintock Papers (Profiles in Science)
