[190] “If an invert acquires, under the influence of external conditions,” Fere wrote with truth (L’Instinct Sexuel, p. 238), “it is because he was born with an aptitude for such acquisition:  an aptitude lacking in those who have been subjected to the same conditions without making the same acquisitions.”

[191] One of my subjects writes:  “Inverts are, I think, naturally more liable to indulge in self-gratification than normal people, partly because of the perpetual suppression and disappointment of their desires, and also because of the fact that they actually possess in themselves the desired form of the male.  This idea is a little difficult of explanation, but you can readily imagine to what frenzies of self-abuse a normal man would be impelled supposing that he included in his own the form of the female.”

[192] I do not here enter upon the consideration of the normal prevalence and significance of masturbation and allied phenomena, as I have dealt with this subject in the study of “Auto-erotism,” in volume i of these Studies.

[193] Hirschfeld also finds, among German inverts (Die Homosexualitaet, ch. iii), that the majority (though a smaller majority than I find in England and the United States) have not had intercourse with women; 53 per cent., he states, including a few married men, have never even attempted coitus, and over 50 per cent, are presumably impotent.  The number of inverted women who have never had intercourse with men is still larger.

[194] Otto Rank, Imago, Heft 3, 1913.

[195] Erotic dreams have been discussed in “Auto-erotism,” vol. i of these Studies, and the wider bearings of the subject in another work, The Study of Dreams.  Many references to the extensive literature will be found in both these places.

[196] E.g., Archiv fuer Psychiatrie, 1899; Archiv fuer Kriminal-Anthropologie, 1900.

[197] Hirschfeld, Die Homosexualitaet, p. 71 et seq.  Hirschfeld considers that the dreams of the inverted fall into two groups:  one in which the dreamer imagines he is embracing a person of the same sex, and another in which he imagines that he is himself of the opposite sex.  The latter class of dreams, constituting a pseudo-heterosexual group, seems to me to be rare, and they may, moreover, occur in heterosexual persons.

[198] See Thoinot and Weysse, Medico-legal Aspects of Moral Offenses, pp. 165, 291, etc.

[199] Pedicatio (or paedicatio) is the most generally accepted technical term for the sodomitical intromission of the penis into the anus.  It is usually derived from the Greek pais (boy), but some authorities have derived it from pedex or podex (anus).  The terms “paiderastia” and “pederast” are sometimes used to indicate the same act and agent.  This use, however, is undesirable.  It is best to confine the word “paiderastia” to its proper use as the name of the special institution of Greek boy love.  It may be added that the Greeks themselves had many names (as many as 74) for paiderastia.  See, on this subject of nomenclature, Iwan Bloch, Der Ursprung der Syphilis, vol. ii, pp. 527, 563.