This series is presented as a contribution to the interesting study of genetics, in the hope that discussion will follow from those especially qualified to tell more about its vagaries. I do not feel inclined to delve into the mysteries of embryonic development. It is for the more competent to discuss the chromosome complex, the metabolic rate as an influence in sex determination and other reputed factors of genesial control. Since true bisexuality, in which one individual possesses all the functions of both sexes, is a condition of mooted existence, the term hermaphroditism used in the text should be accordingly interpreted. I do think, however, that the ordinarily used prefix of pseudo in the nomenclature is inept and the final diagnosis pseudohermaphroditism is used only as a conventional acceptance. Either of the terms imperfect hermaphroditism or incomplete hermaphroditism might more aptly define the anomalous condition. The three cases here reported