[132] Krafft-Ebing, "Ueber tardive Homosexualität," _Jahrbuch für sexuelle Zwischenstufen_, Bd. iii, 1901, p. 7; Näcke, "Probleme auf den Gebiete der Homosexualität," _Allgemeine Zeitschrift für Psychiatrie_, 1902, p. 805; ib., "Ueber tardive Homosexualität," _Sexual-Probleme_, September, 1911. Numa Praetorius (_Jahrbuch für sexuelle Zwischenstufen_, January, 1913, p. 228) considers that retarded cases should not be regarded as bisexual, but as genuine inverts who had acquired a pseudoheterosexuality which at last falls away; at the most, he believes such cases merely represent a prolongation of the youthful undifferentiated period. [133] Moll, _Untersuchungen über die Libido Sexualis_, 1897, pp, 458-8. [134] Hirschfeld, _Die Homosexualität_, ch. viii. [135] This was the term used in the earlier editions of the present _Study_. I willingly reject it in favor of the simpler and fairly clear term now more generally employed. It is true that by bisexuality it is possible to understand not only the double direction of the sexual instinct, but also the presence of both sexes in the same individual, which in French is more accurately distinguished as "bisexuation." [136] J. Van Biervliet, "L'Homme Droit et l'Homme Gauche," _Revue Philosophique_, October, 1901. It is here shown that in the constitution of their nervous system the ambidextrous are demonstrably left-sided persons; their optic, acoustic, olfactory, and muscular sensitivity is preponderant on the left side. CHAPTER IV. SEXUAL INVERSION IN WOMEN. Prevalence of Sexual Inversion Among Women--Among Women of Ability--Among the Lower Races--Temporary Homosexuality in Schools, etc.--Histories--Physical and Psychic Characteristics of Inverted Women--The Modern Development of Homosexuality Among Women.