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172814 https://hdl.handle.net/10776/7511 2014-01-22 eng Cox, Troy O'Brien, Ceara Arizona State University. School of Life Sciences. Center for Biology and Society. Embryo Project Encyclopedia. Arizona Board of Regents open access http://creativecommons.org/licenses/by-nc-sa/3.0/ Studies in Spermatogenesis is a two volume book written by Nettie Maria Stevens, and published by the Carnegie Institution of Washington in 1905 and 1906. In the books Stevens explains the research she conducted on chromosomal sex determination in the sperm and egg cells of insect species while at Bryn Mawr College, near Philadelphia, Pennsylvania. Studies in Spermatogenesis described early examples of chromosomal XY sex-determination. Literature Spermatogenesis Genetic sex determination Sex Differentiation Embryos Developmental Biology Sex Chromosomes Wilson, Edmund B. (Edmund Beecher), 1856-1939 Morgan, Thomas Hunt, 1866-1945 Sex Determination Processes Publications Stevens, N. M. (Nettie Maria), 1861-1912 Wilson, Edmund B. (Edmund Beecher), 1856-1939 Morgan, Thomas Hunt, 1866-1945 Studies in Spermatogenesis (1905), by Nettie Maria Stevens