[109] The influence of impeded respiration in exciting more or less perverted forms of sexual gratification has been discussed in a section of "Love and Pain" in the third volume of these _Studies_. [110] See, e.g., the experiments of Obici on this point, _Revista Sperimentale di Freniatria_, 1903, pp. 689, et seq. [111] Summarized in _Archives d'Anthropologie Criminelle_, March, 1903, p. 188. The tendency to closure of the eyes noted by Roubaud, to avoid contact of the light, indicates dilatation of the pupils, for which we need not seek other explanation than the general tendency of all peripheral stimulation, according to Schiff's law, to produce such dilatation. [112] Vaschide and Vurpas, "Du Coefficient Sexuel de l'Impulsion Musicale," _Archives de Neurologie_, May, 1904. [113] In the _Priapeia_ is an inscription which has thus been translated:-- "You see this organ, after which I'm called And which is my certificate, is humid; This moisture is not dew nor drops of rain, It is the outcome of sweet memory, Recalling thoughts of a complacent maid." The translator supposes that semen is referred to, but without doubt the allusion is to the theologians' _distillatio_. [114] A woman of 30, normal and intelligent, after conversing on love and passion, and then listening to the music of Grieg and Schumann, felt real and strong sexual excitement, increased by memories recalled by the presence of a sympathetic person. When then tested by the dynamometer the average of ten efforts with the right hand was found to be 28.2 (her normal average being 31.1) and with the left hand 28.0 (the normal being 30.0). There was, however, great variability in the individual pressures which sometimes equaled and even exceeded the subject's normal efforts. The voluntary muscles are thus in harmony with the approaching general sexual avalanche. (Vaschide and Vurpas, "Quelques Données Expérimentales sur l'Influence de l'Excitation Sexuelle," _Archivio di Psichiatria_, 1903, fasc. v-vi.) [115] Cf. MacGillicuddy, _Functional Disorders of the Nervous System in Women_, p. 110; Féré, _L'Instinct Sexuel_, second edition, p. 238; id., "Note sur une Anomalie de l'instinct Sexuel," _Belgique Médicale_, 1905; also "Analysis of the Sexual Impulse," in an earlier volume of these _Studies_. [116] J.P. West, "Masturbation in Early Childhood," _Medical Standard_, November, 1895. [117] Cf. the discussion of hysteria in "Auto-Erotism," vol. i of these _Studies_. [118] Hirst, _Text-Book of Obstetrics_, 1899, p. 67. [119] The earliest story of the kind with which I am acquainted, that of a widow who was thus impregnated by a married friend, is quoted in Schurig's _Spermatologia_ (p. 224) from Amatus Lusitanus, _Curationum Centuriæ Septum_, 1629. [120] Janke, _Die Willkürliche Hervorbringen des Geschlechts_, p. 238. [121] Cf. Adler, _Die Mangelhafte Geschlechtsempfindung des Weibes_, pp. 29-38. [122] Féré, _Pathologie des Emotions_, p. 51.