The pseudo-Michael Scot among the _Signa mulieris calidæ naturæ et quæ coit libenter_ stated that her hair, both on the head and body, is thick and coarse and crisp, and Della Porta, the greatest of the physiognomists, said that thickness of hair in women meant wantonness. Venette, in his _Generation de l'Homme_, remarked that men who have much hair on the body are most amorous. At a more recent period Roubaud has said that pubic hair in its quantity, color and curliness is an index of genital energy. A poor pilous system, on the other hand, Roubaud regarded as a probable though not an irrefragable proof of sexual frigidity in women. "In the cold woman the pilous system is remarkable for the languor of its vitality; the hairs are fair, delicate, scarce and smooth, while in ardent natures there are little curly tufts about the temples." (_Traité de l'Impuissance_, pp. 124, 523.) Martineau declared (_Leçons sur les Déformations Vulvaires_, p. 40) that "the more developed the genital organs the more abundant the hair covering them; abundance of hair appears to be in relation to the perfect development of the organs." Tardieu described the typically erotic woman as very hairy. Bergh found that among 2200 young Danish prostitutes those who showed an unusual extension and amount of pubic hair included several women who were believed to be libidinous in a very high degree. (Bergh, "Symbolæ," etc., _Hospitalstidende_, August, 1894.) Moraglia, again, in Italy, in describing various women, mostly prostitutes, of unusually strong sexual proclivities, repeatedly notes very thick hair, with down on the face. (_Archivio di Psichiatria_, vol. xvi, fasc. iv-v.) Marro, also, in Italy found that abundance of hair and down is especially marked in women who are guilty of infanticide (as also Pasini has found), though criminal women generally, in his experience, tend to have abnormally abundant hair. (_Caratteri del Delinquenti_, cap. XXII.) Lombroso finds that prostitutes generally tend to be hairy (_Donna Delinquente_, p. 320.) A lad of 14, guilty of numerous crimes of violence having a sexual source, is described by Arthur Macdonald in America as having hair on the chest as well as all over the pubes. (A. Macdonald, _Archives de L'Anthropologie Criminelle_, January, 1893, p. 55.) The association of hairiness with abnormal sexuality in the weak-minded has been noted at Bicêtre (_Recherches Cliniques sur l'Epilepsie_, vol. xix, pp. 69, 77.)