There is no attempt to invent new theories; the main value of Hirschfeld's work lies, indeed, in the constant endeavor to keep close to definite facts.

It is this quality which renders the book an indispensable source for all who seek enlightened and precise information on this question.
Even the existence of such a treatise as this of Hirschfeld's is enough to show how rapidly the study of this subject has grown.

A few years ago--for instance, when Dr.Paul Moreau wrote his _Aberrations du Sens Genesique_--sexual inversion was scarcely even a name.

It was a loathsome and nameless vice, only to be touched with a pair of tongs, rapidly and with precautions.

As it now presents itself, it is a psychological and medico-legal problem so full of interest that we need not fear to face it, and so full of grave social actuality that we are bound to face it.
FOOTNOTES: [113] In England aberration of the sexual instinct, or the tendency of men to feminine occupations and of women to masculine occupations, had been referred to in the _Medical Times and Gazette_, February 9, 1867; Sir G.
Savage first described a case of "Sexual Perversion" in the _Journal of Mental Science_, vol.xxx, October, 1884.
[114] Moritz, _Magazin fuer Erfahrungsseelenkunde_, Berlin, Bd.