[116] See Biérent, _La Puberté_ Chapter IV; also Havelock Ellis, _Man and Woman_, fourth edition, pp. 270-272. Endriss (_Die Bisherigen Beobachtungen von Physiologischen und Pathologischen Beziehungen der oberen Luftwege zu den Sexualorganen_, Teil III) brings together various observations on the normal and abnormal relations of the larynx to the sexual sphere. [117] Moll, _Untersuchungen über die Libido Sexualis_, bd. 1, p. 133. [118] J.L. Roger, _Traité des Effets de la Musique_, 1803, pp. 234 and 342. [119] A typical example occurs in the early life of History I in Appendix B to vol. iii of these _Studies_. [120] Vaschide and Vurpas state (_Archives de Neurologie_, May, 1904) that in their experience music may facilitate sexual approaches in some cases of satiety, and that in certain pathological cases the sexual act can only be accomplished under the influence of music. [121] Féré, _L'Instinct Sexuel_, p. 137. Bloch (_Beiträge_, etc., vol. ii, p. 355) quotes some remarks of Kistemaecker's concerning the sound of women's garments and the way in which savages and sometimes civilized women cultivate this rustling and clinking. Gutzkow, in his _Autobiography_, said that the _frou-frou_ of a woman's dress was the music of the spheres to him. [122] The voice is doubtless a factor of the first importance in sexual attraction among the blind. On this point I have no data. The expressiveness of the voice to the blind, and the extent to which their likes and dislikes are founded on vocal qualities, is well shown by an interesting paper written by an American physician, blind from early infancy, James Cocke, "The Voice as an Index to the Soul," _Arena_, January, 1894. [123] Long before Darwin had set forth his theory of sexual selection Laycock had pointed out the influence which the voice of the male, among man and other animals, exerts on the female (_Nervous Diseases of Women_, p. 74). And a few years later the writer of a suggestive article on "Woman in her Psychological Relations" (_Journal of Psychological Medicine_, 1851) remarked: "The sonorous voice of the male man is exactly analogous in its effect on woman to the neigh and bellow of other animals. This voice will have its effect on an amorous or susceptible organization much in the same way as color and the other visual ovarian stimuli." The writer adds that it exercises a still more important influence when modulated to music: "in this respect man has something in common with insects as well as birds." [124] Groos refers more than once to the important part played in German novels written by women by what one of them terms the "bearded male voice." [125] Various instances are quoted in the third volume of these _Studies_ when discussing the general phenomena of courtship and tumescence, "An Analysis of the Sexual Impulse." [126] _The Tasmanians_, p. 20.