[7] Recently Gualino [“Il Riflesso Sessuale nell’ Eccitamento alle Labbra” (“The Sexual Reflex resulting from the Stimulation of the Lips”), published in the Italian “Archives of Psychiatry,” 1904, p. 341 _et seq._] by mechanical stimulation of the red parts of the lips, has produced erotic ideas and congestion of the genital organs, and this proves that the lips are an erogenic zone. Compare also the interesting remarks of Professor Petermann and Dr. Näcke on the origin of the kiss, in the German “Archives of Criminal Anthropology,” 1904, vol. xvi., pp. 356, 357. [8] A kiss is on the boundary-line between erotism and sexual enjoyment. Bölsche calls it the true transitional form between fusion-love and distance-love. At the instant of the kiss the distance between the two lovers is certainly reduced to a minimum; the distance-love, therefore, is on the point of becoming fusion-love. On the other hand, however, the kiss is still simply tactile contact, and contact of the heads only, the actual seat in mankind of the sentiment of distance-love. The kiss represents a yearning for complete fusion-love, and yet is at the same time a symbol of purely spiritual distance-love. [9] Especially in France is this the case. Madame Adam describes very tastefully this feeling of loss of virtue after granting a kiss. [10] _Cf._ also J. Librowicz, “The Kiss and Kissing,” p. 22 (Hamburg, 1877). [11] It is interesting to observe that the Chinese regard the European kiss as a sign of cannibalism [d’Enjoy, “Le Baiser en Europe et en Chine” (“The Kiss in Europe and in China”), _Bulletin de la Société d’Anthropologie_, Paris, 1897, No. 2.] [12] We can allude only in passing to the celebrated genito-labial nerve of Voltaire. CHAPTER III THE SECONDARY PHENOMENA OF HUMAN LOVE (REPRODUCTIVE ORGANS, SEXUAL IMPULSE, SEXUAL ACT) “_Sexual passion is a matter of universal experience; and speaking broadly and generally, we may say it is a matter on which it is quite desirable that every adult at some time or other should have actual experience._”--EDWARD CARPENTER. CONTENTS OF CHAPTER III