41. Letter from Barbara McClintock to Charles R. Burnham Publication: Produced: 11 June 1931 Subject(s): ChromosomesGenetics Archival Collection: The Barbara McClintock Papers (Profiles in Science)
42. 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)
43. 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)
44. 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)
45. 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)
46. 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)
47. Letter from Barbara McClintock to Charles R. Burnham Publication: Produced: 13 April 1945 Subject(s): ChromosomesFellowships and Scholarships Archival Collection: The Barbara McClintock Papers (Profiles in Science)
48. Letter from Barbara McClintock to Charles R. Burnham Publication: Produced: 20 January 1950 Subject(s): ChromosomesMutationChromosome Breakage Archival Collection: The Barbara McClintock Papers (Profiles in Science)
49. The Behavior in Successive Nuclear Divisions of a Chromosome Broken at Meiosis Publication: National Academy Press (U.S.), 1939 Subject(s): MeiosisChromosomesChromosome BreakageCrossing Over, Genetic Archival Collection: The Barbara McClintock Papers (Profiles in Science)
50. Letter from Barbara McClintock to Charles R. Burnham Publication: Produced: 7 April 1930 Subject(s): ChromosomesGenetics Archival Collection: The Barbara McClintock Papers (Profiles in Science)