[21] _Vorlesungen ueber Stoerungen der Sprache_ (_Lectures on Disturbances of Speech_), p. 105. Berlin, 1893. [22] _Hautkrankheiten und Sexualitaet_ (_Diseases of the Skin in Relation to Sex_). Reprinted from the _Wiener Klinik_, 1906. [23] William Douglas Morrison, _Jugendliche Uebeltaeter_ (_Youthful Delinquents_), p. 28. Leipzig, 1899. [24] _Die Seele des Kindes_ (_The Soul of the Child_) p. 147, 4th ed., Leipzig, 1895. [25] Although in various other parts of this book I draw attention to the fact that the sexual processes of childhood described by me are not to be witnessed in every child, but that on the contrary there are many children in whom such sexual phenomena are by no means to be observed, I take this additional opportunity of stating categorically that erections naturally occur in children less frequently than in adults; they are in fact notably less common in the former, but nevertheless erection is not, in my opinion, a pathological manifestation even in very early childhood. The comparatively slight capacity for erection possessed by children, as compared with adults, is, for example, shown by the fact to which Jullien draws attention, in his work _Seltenere und weniger bekannte Tripperformen_ (_Rare and Little Known Forms of Gonorrhoea_), Vienna and Leipzig, 1907, that the painful erections (chordee) which so commonly accompany gonorrhoea in adults, are very rare indeed in the case of gonorrhoea in children, and even in the case of older children are hardly ever observed. [26] _Op. cit._, p. 8. [27] _The Hygiene of Love._ [28] _Lehrbuch der Gerichtlichen Medizin_ (_Text-book of Forensic Medicine_), p. 58, 7th ed., Vienna, 1895. [29] Pauli Zacchiae, _Quaestiones Medico-Legales_, lib. i, p. 26, Lipsiae, 1630. [30] _Lehrbuch der Gerichtlichen Medizin_ (_Text-book of Forensic Medicine_), p. 64, Stuttgart, 1895. [31] In the next chapter I shall describe certain analogous pathological processes. [32] _Handbuch der Eingeweidelehre_ (_Handbook of Splanchnology_), 2nd ed., Brunswick, 1873. [33] German, _Kitzelgefuehl_. In German, the word _Kitzel_ signifies both _itching_ and _tickling_ and is likewise used to denote both _sexual desire_ and _sexual gratification_. Consult my note "Itching, Ticking, and Sexual Sensibility," in the English edition of Bloch's _The Sexual Life of Our Time_, pp. 43, 44.--TRANSLATOR. [34] "Zur Psychologie der Vita Sexualis" ("Contributions to the Psychology of the Sexual Life"), _Zeitschrift fuer Psychiatrie_, vol. 1. [35] Compare Mrs. Browning's graceful treatment of a young girl's imaginings, in her well-known poem, "The Romance of a Swan's Nest." "Little Ellie sits alone . . . . . While she thinks what shall be done, And the sweetest pleasure chooses For her future within reach.