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Tip bumped, name in ink front cover else very good. Hereditas, v37 n3 (June 1951): 306-324. "Joe Hin Tjio (1919-2001), was a cytogeneticist renowned as the first person to recognize the normal number of human chromosomes. This epochal event occurred on December 22, 1955 at the Institute of Genetics of the University of Lund in Sweden, where Tjio was a visiting scientist." Wikipedia. * |