481. Letter from Barbara McClintock to Charles R. Burnham Publication: Produced: 4 April 1930 Subject(s): ChromosomesZea maysCrossing Over, GeneticCytogenetics Archival Collection: The Barbara McClintock Papers (Profiles in Science)
482. 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)
483. Letter from Barbara McClintock to Charles R. Burnham Publication: Produced: 16 December 1929 Subject(s): Zea maysGenetics Archival Collection: The Barbara McClintock Papers (Profiles in Science)
484. A Correlation of Ring-Shaped Chromosomes with Variegation in Zea Mays Publication: National Academy Press (U.S.), 15 December 1932 Subject(s): Zea maysRing ChromosomesGenetic Markers Archival Collection: The Barbara McClintock Papers (Profiles in Science)
485. Letter from Barbara McClintock to Charles R. Burnham Publication: Produced: 7 December 1929 Subject(s): Zea maysGenetics Archival Collection: The Barbara McClintock Papers (Profiles in Science)
486. Letter from Barbara McClintock to Charles R. Burnham Publication: Produced: 20 February 1930 Subject(s): Zea maysStaining and Labeling Archival Collection: The Barbara McClintock Papers (Profiles in Science)
487. Letter from Barbara McClintock to Charles R. Burnham Publication: Produced: 6 February 1931 Subject(s): ChromosomesGenetics Archival Collection: The Barbara McClintock Papers (Profiles in Science)
488. 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)
489. 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)
490. 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)