Publisher Information: Berkeley: University of California Press, 1929.
Evans, Herbert McLean (1882-1971) & Olive Swezy (b. 1878). The chromosomes in man: Sex and somatic. , 41pp. 11 plates; text illustrations. Berkeley: University of California Press, 1929. 327 x 252 mm. Library buckram, a bit soiled, library shelfmark on spine, library card pocket removed from inside back cover. Good to very good. Library stamps on endpapers.
First Edition. Evans, best known for discovering vitamin E and human growth hormone, collaborated with zoologist Olive Swezy in research on human chromosomes in the 1920s, a time when the exact number of chromosomes per cell was still unknown. “For this study Evans personally obtained exceptionally well-preserved material by attending, at San Quentin prison, executions of criminals whose bodies were not to be claimed by relatives. Swezy did most of the counting, from thin serial sections . . . The count of 48 chromosomes in each cell, published by Evans and Swezy, was unfortunately incorrect; it is now certain that 46 is the correct number. In 1969, to a gathering of scientific friends, Evans explained that semidetached portions of two chromosomes had been counted as separate units” (Corner, p. 171). Corner, “Herbert McLean Evans,” Biographical Memoirs of the National Academy of Sciences 45 (1974), pp. 157-187. Norman 744.Book Id: 44327