The first edition of this volume was published in 1899, following "Sexual Inversion,"

Too Long; Didn't Read

The first edition of this volume was published in 1899, following "Sexual Inversion," which now forms Volume II. The second edition, issued by the present publishers and substantially identical with the first edition, appeared in the following year. Ten years have elapsed since then and this new edition will be found to reflect the course of that long interval. Not only is the volume greatly enlarged, but nearly every page has been partly rewritten. This is mainly due to three causes: Much new literature required to be taken into account; my own knowledge of the historical and ethnographic aspects of the sexual impulse has increased; many fresh illustrative cases of a valuable and instructive character have accumulated in my hands. It is to these three sources of improvement that the book owes its greatly revised and enlarged condition, and not to the need for modifying any of its essential conclusions. These, far from undergoing any change, have by the new material been greatly strengthened.