31. 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)
32. 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)
33. Letter from Barbara McClintock to Charles R. Burnham Publication: Produced: 4 February 1935 Archival Collection: The Barbara McClintock Papers (Profiles in Science)
34. 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)
35. Letter from Barbara McClintock to Charles R. Burnham Publication: Produced: 2 April 1935 Subject(s): Chromosome BreakageGenetics Archival Collection: The Barbara McClintock Papers (Profiles in Science)
36. 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)
37. 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)
38. 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)
39. Letter from Charles R. Burnham to Barbara McClintock Publication: Produced: 23 January 1931 Subject(s): Zea maysChromosomesFellowships and Scholarships Archival Collection: The Barbara McClintock Papers (Profiles in Science)
40. Letter from Charles R. Burnham to Barbara McClintock Publication: Produced: 5 October 1932 Subject(s): Zea maysChromosomes Archival Collection: The Barbara McClintock Papers (Profiles in Science)