A medical correspondent speaks of subjective feelings of temperature coming over the body from 20 to 24 hours after congress, and marked by sensations of cooling of body and glow of cheeks. In another case, though lassitude appears on the second day after congress, the first day after is marked by a notable increase in mental and physical activity.
III.
The Constituents of Semen—Function of the Prostate—The Properties of Semen—Aphrodisiacs—Alcohol, Opium, etc.—Anaphrodisiacs—The Stimulant Influence of Semen in Coitus—The Internal Effects of Testicular Secretions—The Influence of Ovarian Secretion.
The germ cell never comes into the sphere of consciousness and cannot therefore concern us in the psychological study of the phenomena of the sexual instinct. But it is otherwise with the sperm cell, and the seminal fluid has a relationship, both direct and indirect, to psychic phenomena which it is now necessary to discuss.
While the spermatozoa are formed in the glandular tissue of the testes, the seminal fluid as finally emitted in detumescence is not a purely testicular product, but is formed by mixture with the fluids poured out at or before detumescence by various glands which open into the urethra, and notably the prostate.[[129]] This is a purely sexual gland, which in animals only becomes large and active during the breeding season, and may even be hardly distinguishable at other times; moreover, if the testes are removed in infancy, the prostate remains rudimentary, so that during recent years removal of the testes has been widely advocated and practiced for that hypertrophy of the prostate which is sometimes a distressing ailment of old age. It is the prostatic fluid, according to Fürbringer, which imparts its characteristic odor to semen. It appears, however, to be the main function of the prostatic fluid to arouse and maintain the motility of the spermatozoa; before meeting the prostatic fluid the spermatozoa are motionless; that fluid seems to furnish a thinner medium in which they for the first time gain their full vitality.[[130]]
When at length the semen is ejaculated, it contains various substances which may be separated from it,[[131]] and possesses various qualities, some of which have only lately been investigated, while others have evidently been known to mankind from a very early period. "When held for some time in the mouth," remarked John Hunter, "it produces a warmth similar to spices, which lasts some time."[[132]] Possibly this fact first suggested that semen might, when ingested, possess valuable stimulant qualities, a discovery which has been made by various savages, notably by the Australian aborigines, who, in many parts of Australia, administer a potion of semen to dying or feeble members of the tribe.[[133]] It is perhaps noteworthy that in Central Africa the testes of the goat are consumed as an aphrodisiac.[[134]] In eighteenth century Europe, Schurig, in his Spermatologia, still found it necessary to discuss at considerable length the possible medical properties of human semen, giving many prescriptions which contained it.[[135]] The stimulation produced by the ingestion of semen would appear to form in some cases a part of the attraction exerted by fellatio; De Sade emphasized this point; and in a case recorded by Howard semen appears to have acted as a stimulant for which the craving was as irresistible as is that for alcohol in dipsomania.[[136]]