with difficulty reach their minds; and then afterwards they are ashamed at their mistakes."
The action of opium in small doses is also to some extent aphrodisiacal; it slightly stimulates both the brain and the spinal cord, and has sensory effects on the skin like alcohol; these effects are favored by the state of agreeable dreaminess it produces. In the seventeenth century Venette (_La Génération de l'Homme_, Part II, Chapter V) strongly recommended small doses of opium, then little known, for this purpose; he had himself, he says, in illness experienced its joys, "a shadow of those of heaven." In India opium (as well as cannabis indica) has long been a not uncommon aphrodisiac; it is specially used to diminish local sensibility, delaying the orgasm and thus prolonging the sexual act. (W.D. Sutherland, "De Impotentia," _Indian Medical Gazette_, January, 1900). Its more direct and stimulating influence on the sexual emotions seems indicated by the statement that prostitutes are found standing outside the opium-smoking dens of Bombay, but not outside the neighboring liquor shops. (G.C. Lucas, _Lancet_, February 2, 1884.) Like alcohol, opium seems to have a marked aphrodisiacal effect on women. The case is recorded of a mentally deranged girl, with no nymphomania though she masturbated, who on taking small doses of opium at once showed signs of nymphomania, following men about, etc. (_American Journal Obstetrics_, May, 1901, p. 74.) It may well be believed that opium acts beneficially in men when the ejaculatory centers are weak but irritable; but its actions are too widespread over the organism to make it in any degree a valuable aphrodisiac. Various other drugs have more or less reputation as aphrodisiacs; thus bromide of gold, a nervous and glandular stimulant, is said to have as one of its effects a heightening of sexual feeling. Yohimbin, an alkaloid derived from the West African Yohimbehe tree, has obtained considerable repute during recent years in the treatment of impotence; in some cases (see, e.g., Toff's results, summarized in _British Medical Journal_, February 18, 1905) it has produced good results, apparently by increasing the blood supply to the sexual organs, but has not been successful in all cases or in all hands. It must always be remembered that in cases of psychical impotence suggestion necessarily exerts a beneficial influence, and this may work through any drug or merely with the aid of bread pills. All exercise, often even walking, may be a sexual stimulant, and it is scarcely necessary to add that powerful stimulation of the skin in the sexual sphere, and more especially of the nates, is often a more effective aphrodisiac than any drug, whether the irritation is purely mechanical, as by flogging, or mechanico-chemical, as by urtication or the application of nettles. Among the Malays (with whom both men and women often use a variety of plants as aphrodisiacs, according to Vaughan Stevens) Breitenstein states (_21 Jahre in India_, Theil I, p. 228) that both massage and gymnastics are used to increase sexual powers. The local application of electricity is one of the most powerful of aphrodisiacs, and McMordie found on applying one pole to a uterine sound in the uterus and the other to the abdominal wall that in the majority of healthy women the orgasm occurred.
Among anaphrodisiacs, or sexual sedatives, bromide of potassium, by virtue of its antidotal relationship to strychnia, is one of the drugs whose action is most definite, though, while it dulls sexual desire, it also dulls all the nervous and cerebral activities. Camphor has an ancient reputation as an anaphrodisiac, and its use in this respect was known to the Arabs (as may be seen by a reference to it in the _Perfumed Garden_), while, as Hyrtl mentions (loc. cit. ii, p. 94), rue (_Ruta graveolens_) was considered a sexual sedative by the monks of old, who on this account assiduously cultivated it in their cloister gardens to make _vinum rutæ_. Recently heroin in large doses (see, e.g., Becker, _Berliner Klinische Wochenschrift_, November 23, 1903) has been found to have a useful effect in this direction. It may be doubted, however, whether there is any satisfactory and reliable anaphrodisiac. Charcot, indeed, it is said, used to declare that the only anaphrodisiac in which he had any confidence was that used by the uncle of Heloïse in the case of Abelard. "_Cela_ (he would add with a grim smile) _tranche la difficulte_."
If semen is a stimulant when ingested, it is easy to suppose that it may exert a similar action on the woman who receives it into the vagina in normal sexual congress. It is by no means improbable that, as Mattei argued in 1878, this is actually the case. It is known that the vagina possesses considerable absorptive power. Thus Coen and Levi, among others, have shown that if a tampon soaked in a solution of iodine is introduced into the vagina, iodine will be found in the urine within an hour. And the same is true of various other substances.[137] If the vagina absorbs drugs it probably absorbs semen. Toff, of Braila (Roumania), who attaches much importance to such absorption, considers that it must be analogous to the ingestion of organic extractives. It is due to this influence, he believes, that weak and anæmic girls so often become full-blooded and robust after marriage, and lose their nervous tendencies and shyness.[138] It is, however, most certainly a mistake to suppose that the beneficial influence of coitus on women is exclusively, or even mainly, dependent upon the absorption of semen. This is conclusively demonstrated by the fact that such beneficial influence is exerted, and in full measure, even when all precautions have been taken to avoid any contact with the semen. In so far as _coitus reservatus_ or _interruptus_ may lead to haste or discomfort which prevents satisfactory orgasm on the part of the woman, it is without doubt a cause of defective detumescence and incomplete satisfaction. But if orgasm is complete the beneficial effects of coitus follow even if there has been no possibility of the absorption of semen. Even after _coitus interruptus_, if it can be prolonged for a period long enough for the woman to attain full and complete satisfaction, she is enabled to experience what she may describe as a feeling of intoxication, lasting for several hours. It is in the action of the orgasm itself, and the vascular, secretory, and metabolic activities set up by the psychic and nervous influence of coitus with a beloved person, that we must seek the chief key to the effects produced by coitus on women, however these effects may possibly be still further heightened by the actual absorption of semen.[139] The positive action of semen, or rather of the testicular products, has been much investigated during recent years, and appears on the whole to be demonstrated. The notable discovery by Brown-Séquard, a quarter of a century ago, that the ingestion of the testicular juices in states of debility and senility acted as a beneficial stimulant and tonic, opened the way to a new field of therapeutics. Many investigators in various countries have found that testicular extracts, and more especially the spermin as studied by Poehl,[140] and by him regarded as a positive katalysator or accelerator of metabolic processes, exert a real influence in giving tone to the heart and other muscles, and in improving the metabolism of the tissues even when all influences of mental suggestion have been excluded.[141] As the ovaries are strictly analogous to the testes, it was surmised that ovarian extract might prove a drug equally valuable with testicular products. As a matter of fact, ovarian extract, in the form of ovarin, etc., would seem to have proved beneficial in various disorders, more especially in anæmia and in troubles due to the artificial menopause. In most conditions, however, in which it has been employed the results are doubtful or uncertain, and some authorities believe that the influence of suggestion plays a considerable part here.
There is, however, another use which is subserved by the testicular products, a use which may indeed be said to be implied in those uses to which reference has already been made, but is yet historically the latest to be realized and studied. It was not until 1869 that Brown-Séquard first suggested that an important secretion was elaborated by the ductless glands and received into the circulation, but that suggestion proved to be epoch-making. If these glandular secretions are so valuable when administered as drugs to other persons, must they not be of far greater value when naturally secreted and poured out into the circulation in the living body? It is now generally believed, on the basis of a large and various body of evidence, that this is undoubtedly so. In a very crude form, indeed, this belief is by no means modern. In opposition to the old writers who were inclined to regard the semen as an excretion which it was beneficial to expel, there were other ancient authorities who argued that it was beneficial to retain it as being a vital fluid which, if reabsorbed, served to invigorate the body. The great physiologist, Haller, in the middle of the eighteenth century, came very near to the modern doctrine when he stated in his _Elements of Physiology_ that the sperm accumulated in the seminical vesicles is pumped back into the blood, and thus produces the beard and the hair together with the other surprising changes of puberty which are absent in the eunuch. The reabsorption of semen can scarcely be said to be a part of the modern physiological doctrine, but it is at least now generally held that the testes secrete substances which pass into the circulation and are of immense importance in the development of the organism.
The experiments of Shattock and Seligmann indicate that the semen and its reabsorption in the seminal vesicles, or the nervous reactions produced by its presence, can have no part in the formation of secondary sexual characters. These investigators occluded the vas deferens in sheep by ligature, at an early age, rendering them later sterile though not impotent. The secondary sexual characters appeared as in ordinary sheep. Spermatogenesis, these inquirers conclude, may be the initial factor, but the results must be attributed to the elaboration by the testicles of an internal secretion and its absorption into the general circulation.[142] When animals are castrated there is enlargement of the ductless glands in the body, notably the thyroid and the suprarenal capsules.[143] It is evident, therefore, that the secretions of these ductless glands are in some degree compensatory to those of the testes. But this compensatory action is inadequate to produce any sexual development in the absence of the testes.
We see, therefore, how extremely important is the function of the testis. Its significance is not alone for the race, it is not simply concerned with the formation of the spermatozoa which share equally with the ova the honor of making the mankind of the future. It also has a separate and distinct function which has reference to the individual. It elaborates those internal secretions which stimulate and maintain the physical and mental characters, constituting all that is most masculine in the male animal, all that makes the man in distinction from the eunuch. Among various primitive peoples, including those of the European race whence we ourselves spring, the most solemn form of oath was sworn by placing the hand on the testes, dimly recognized as the most sacred part of the body. A crude and passing phase of civilization has ignorantly cast ignominy upon the sexual organs; the more primitive belief is now justified by our advancing knowledge.
In these as in other respects the ovaries are precisely analogous to the testes. They not only form the ova, but they elaborate for internal use a secretion which develops and maintains the special physical and mental qualities of womanhood, as the testicular secretion those of manhood. Moreover, as Cecca and Zappi found, removal of the ovaries has exactly the same effect on the abnormal development of the other ductless glands as has removal of the testes. It is of interest to point out that the internal secretion of the ovaries and its important functions seem to have been suggested before any other secretion than the sperm was attributed to the testes. Early in the nineteenth century Cabanis argued ("De l'Influence des Sexes sur le Caractère des Idées et des Affections Morales," _Rapport du Physique et du Moral de l'Homme_, 1824, vol. ii, p. 18) that the ovaries are secreting glands, forming a "particular humor" which is reabsorbed into the blood and imparts excitations which are felt by the whole system and all its organs.
FOOTNOTES: [129] The composite character of the semen was recognized by various old authors, some of whom said, (e.g., Wharton) that it had three constituents, which they usually considered to be: (1) The noblest and most essential part, from the testicles; (2) a watery element from the vesiculæ; (3) an oily element from the prostate. Schurig, _Spermatologia_, 1720, p. 17.
[130] See, e.g., C. Mansell Moulin, "A Contribution to the Morphology of the Prostate," _Journal of Anatomy and Physiology_, January, 1895; G. Walker, "A Contribution to the Anatomy and Physiology of the Prostate Gland, and a Few Observations on Ejaculation," _Johns Hopkins Hospital Bulletin_, October, 1900.
[131] For a study of the semen and its constituents, see Florence, "Du Sperme," _Archives d'Anthropologie Criminelle_, 1895.
[133] As regards one part of Australia, Walter Roth, _Ethnological Studies Among the Queensland Aborigines_, p. 174.
[135] Cap. VII, pp. 327-357, "De Spermaticis virilis usu Medico," [136] W.L. Howard, "Sexual Perversion," _Alienist and Neurologist_, January, 1896.
[138] E. Toff, "Uber Imprägnierung," _Zentralblatt für Gynäkologie_, April, 1903. In a similar but somewhat more precise manner Dufougère has argued ("La Chlorose, ses rapports avec le marriage, son traitement par le liquide orchitique," Thèse de Bordeaux, 1902) that semen when absorbed by the vagina stimulates the secretion of the ovaries and thus exerts an influence over the blood in anæmia; in this way he seeks to explain why it is that coitus is the best treatment for chlorosis.
[139] In this connection I may refer to an interesting and suggestive paper by Harry Campbell on "The Craving for Stimulants" (_Lancet_, October 21, 1899). No reference is made to coitus, but the author discusses stimulants as normal and beneficial products of the organism, and deals with the nature of the "physiological intoxication" they produce.
[140] Spermin was first discovered in the sperm by Schreiner in 1878; it has also been found in the thyroid, ovaries and various other glands. "The spermin secreting and elaborating organs," Howard Kelly remarks (_British Medical Journal_, January 29, 1898), "may be called the apothecaries' of the body, secreting many important medicaments, much more active and more accurately representing its true wants than artificially administered drugs."
[141] See, e.g., a summary of Buschan's comprehensive discussion of the subject of organotherapy (Eulenburg's _Real-Encyclopædie der Gesammten Heilkunde_) in _Journal of Mental Science_, April, 1899, p. 355.
[142] "Observations Upon the Acquirement of Secondary Sexual Characters, Indicating the Formation of an Internal Secretion by the Testicles," _Proceedings Royal Society_, vol. lxxiii, p. 49.
[143] See, e.g., the experiments of Cecca and Zappi, summarized in _British Medical Journal_, July 2, 1904.
IV.
The Aptitude for Detumescence--Is There an Erotic Temperament?--The Available Standards of Comparison--Characteristics of the Castrated--Characteristics of Puberty--Characteristics of the State of Detumescence--Shortness of Stature--Development of the Secondary Sexual Characters--Deep Voice--Bright Eyes--Glandular Activity--Everted Lips--Pigmentation--Profuse Hair--Dubious Significance of Many of These Characters.
What, if any, are the indications which the body generally may furnish as to the individual's aptitude and vigor for the orgasm of detumescence? Is there an erotic temperament outwardly and visibly displayed? That is a question which has often occupied those who have sought to penetrate the more intimate mysteries of human nature, and since we are here concerned with human beings in their relationship to the process of detumescence, we cannot altogether pass over this question, difficult as it is to discuss it with precision.
The old physiognomists showed much confidence in dealing with the matter. Possibly they had more opportunities for observation than we have, since they often wrote in days when life was lived more nakedly than among ourselves, but their descriptions, while sometimes showing much insight, are inextricably mixed up with false science and superstition.
In the _De Secretis Mulierum_, wrongly attributed to Albertus Magnus, we find a chapter entitled "Signa mulieris calidæ naturæ et quæ coit libenter," which may be summarized here. "The signs," we are told, "of a woman of warm temperament, and one who willingly cohabits are these: youth, an age of over 12, or younger, if she has been seduced, small, high breasts, full and hard, hair in the usual positions; she is bold of speech, with a delicate and high voice, haughty and even cruel of disposition, of good complexion, lean rather than stout, inclined to like drinking. Such a woman always desires coitus, and receives satisfaction in the act. The menstrual flow is not abundant nor always regular. If she becomes pregnant the milk is not abundant. Her perspiration is less odorous than that of the woman of opposite temperament; she is fond of singing, and of moving about, and delights in adornments if she has any."
Polemon, in his _Sulla Physionomia_, has given among the signs of libidinous impulse: knees turned inwards, abundance of hairs on the legs, squint, bright eyes, a high and strident voice, and in women length of leg below the knee. Aristotle had mentioned among the signs of wantonness: paleness, abundance of hair on the body, thick and black hair, hairs covering the temples, and thick eyelids.
In the seventeenth century Bouchet, in his _Serées_ (Troisième Serée), gave as the signs of virility which indicated that a man could have children: a great voice, a thick rough black beard, a large thick nose.
G. Tourdes (Art. "Aphrodisie," _Dictionnaire Encyclopédique des Sciences Médicales_) thus summarized the ancient beliefs on this subject: "The erotic temperament has been described as marked by a lean figure, white and well-ranged teeth, a developed hairy system, a characteristic voice, air, and expression, and even a special odor."
In approaching the question of the general physical indications of a special aptitude to the manifestation of vigorous detumescence, the most obvious preliminary would seem to be a study of the castrated. If we know the special peculiarities of those who by removal of the sexual glands at a very early age have been deprived of all ability to present the manifestations of detumescence, we shall probably be in possession of a type which is the reverse of that which we may expect in persons of a vigorously erotic temperament.
The most general characteristics of eunuchs would appear to be an unusual tendency to put on fat, a notably greater length of the legs, absence of hair in the sexual and secondary sexual regions, a less degree of pigmentation, as noted both in the castrated negro and the white man, a puerile larynx and puerile voice. In character they are usually described as gentle, conciliatory, and charitable.
There can be little doubt that castration in man tends to lead to lengthening of the legs (tibia and fibula) at puberty, from delayed ossification of the epiphyses. The hands and feet are also frequently longer and sometimes the forearms. At the same time the bones are more slender. The pelvis also is narrower. The eunuchs of Cairo are said to be easily seen in a crowd from their tall stature. (Collineau, quoting Lortet, _Revue Mensuelle de l'Ecole d'Anthropologie_, May, 1896.) The castrated Skoptzy show increased stature, and, it seems, large ears, with decreased chest and head (L. Pittard, _Revue Scientifique_, June 20, 1903.) Féré shows that in most of these respects the eunuch resembles beardless and infantile subjects. ("Les Proportions des Membres et les Caractères Sexuels," _Journal de l'Anatomie et de la Physiologie_, November-December, 1897.) Similar phenomena are found in animals generally. Sellheim, carefully investigating castrated horses, swine, oxen and fowls, found retardation of ossification, long and slender extremities, long, broad, but low skull, relatively smaller pelvis and small thorax. ("Zur Lehre von den Sekundären Geschlechtscharakteren," _Beiträge zur Geburtshülfe und Gynäkologie_, 1898, summarized in _Centralblatt für Anthropologie_, 1900, Heft IV.)
As regards the mental qualities and moral character of the castrated, Griffiths considers that there is an undue prejudice against eunuchs, and refers to Narses, who was not only one of the first generals of the Roman Empire, but a man of highly estimable character. (_Lancet_, March 30, 1895.) Matignon, who has carefully studied Chinese eunuchs, points out that they occupy positions of much responsibility, and, though regarded in many respects as social outcasts, possess very excellent and amiable moral qualities (_Archives Cliniques de Bordeaux_, May, 1896.) In America Everett Flood finds that epileptics and feeble-minded boys are mentally and morally benefited by castration. ("Notes on the Castration of Idiot Children," _American Journal of Psychology_, January, 1899.) It is often forgotten that the physical and psychic qualities associated with and largely dependent on the ability to experience the impulse of detumescence, while essential to the perfect man, involve many egoistic, aggressive and acquisitive characteristics which are of little intellectual value, and at the same time inimical to many moral virtues.
We have a further standard--positive this time rather than negative--to aid us in determining the erotic temperament: the phenomena of puberty. The efflorescence of puberty is essentially the manifestation of the ability to experience detumescence. It is therefore reasonable to suppose that the individuals in whom the special phenomena of puberty develop most markedly are those in whom detumescence is likely to be most vigorous. If such is the case we should expect to find the erotic temperament marked by developed larynx and deep voice, a considerable degree of pigmentary development in hair and skin, and a marked tendency to hairiness; while in women there should be a pronounced growth of the breasts and pelvis.[144] There is yet another standard by which we may measure the individual's aptitude for detumescence: the presence of those activities which are most prominently brought into play during the process of detumescence. The individual, that is to say, who is organically most apt to manifest the physiological activities which mainly make up the process of detumescence, is most likely to be of pronounced erotic temperament.
"Erotic persons are of motor type," remark Vaschide and Vurpas, "and we may say generally that nearly all persons of motor type are erotic." The state of detumescence is one of motor and muscular energy and of great vascular activity, so that habitual energy of motor response and an active circulation may reasonably be taken to indicate an aptitude for the manifestation of detumescence.
These three types may be said, therefore, to furnish us valuable though somewhat general indications. The individual who is farthest removed from the castrated type, who presents in fullest degree the characters which begin to emerge at the period of puberty, and who reveals a physiological aptitude for the vigorous manifestation of those activities which are called into action during detumescence, is most likely to be of erotic temperament. The most cautious description of the characteristics of this temperament given by modern scientific writers, unlike the more detailed and hazardous descriptions of the early physiognomists, will be found to be fairly true to the standards thus presented to us.
The man of sexual type, according to Biérent (_La Puberté_, p. 148), is hairy, dark and deep-voiced.
"The men most liable to satyriasis," Bouchereau states (art. "Satyriasis," _Dictionnaire Encyclopédique des Sciences Médicales_), "are those with vigorous nervous system, developed muscles, abundant hair on body, dark complexion, and white teeth."
Mantegazza, in his _Fisiologia del Piacere_, thus describes the sexual temperament: "Individuals of nervous temperament, those with fine and brown skins, rounded forms, large lips and very prominent larynx enjoy in general much more than those with opposite characteristics. A universal tradition," he adds, "describes as lascivious humpbacks, dwarfs, and in general persons of short stature and with long noses."
In a case of nymphomania in a young woman, described by Alibert (and quoted by Laycock, _Nervous Diseases of Women_, p. 28) the hips, thighs and legs were remarkably plump, while the chest and arms were completely emaciated. In a somewhat similar case described by Marc in his _De la Folie_ a peasant woman, who from an early age had experienced sexual hyperæsthesia, so that she felt spasmodic voluptuous feelings at the sight of a man, and was thus the victim of solitary excesses and of spasmodic movements which she could not repress, the upper part of the body was very thin, the hips, legs and thighs highly developed.
In his work on _Uterine and Ovarian Inflammation_ (1862, p. 37) Tilt observes: "The restless, bashful eye, and changing complexion, in presence of a person of the opposite sex, and a nervous restlessness of body, ever on the move, turning and twisting on sofa or chair, are the best indications of sexual temperament."
An extremely sensual little girl of 8, who was constantly masturbating when not watched, although brought up by nuns, was described by Busdraghi (_Archivio di Psichiatria_, fas. i, 1888, p. 53) as having chestnut hair, bright black eyes, an elevated nose, small mouth, pleasant round face, full colored cheeks, and plump and healthy aspect.
A highly intelligent young Italian woman with strong and somewhat perverted sexual impulses is described as of attractive appearance, with olive complexion, small black almond-shaped eyes, dilated pupils, oblique thin eyebrows, very thick black hair, rather prominent cheek-bones, largely developed jaw, and with abundant down on lower part of cheeks and on upper lip. (_Archivio di Psichiatria_, 1899, fasc. v-vi.)
As the type of the sensual woman in word and act, led by her passions to commit various sexual offenses, Ottolenghi describes (_Archivio di Psichiatria_, vol. xii, fasc. v-vi, p. 496) a woman of 32 who attempted to kill her lover. The daughter of parents who were neurotic and themselves very erotic, she was a highly intelligent and vivacious woman, with a pleasing and open face, very thick dark chestnut hair, large cheek-bones, adipose buttocks almost resembling those of a Hottentot, and very thick pubic hair. She was very fond of salt things. Sexual inclination began at the age of 7.
Adler and Moll remark, very truly, that, so far at least as women are concerned, sexual anæsthesia or sexual proclivity cannot be unfailingly read on the features. Every woman desires to please, and coquetry is the sign of a cold, rather than of an erotic temperament.[145] It may be added that a considerable degree of congenital sexual anæsthesia by no means prevents a woman from being beautiful and attractive, though it must probably still always be said that, as Roubaud points out,[146] the woman of cold and intellectual temperament, the "femme de tête," however beautiful and skillful she may be, cannot compete in the struggle for love with the woman whose qualities are of the heart and of the emotions. But it seems sufficiently clear that the practical observations of skilled and experienced observers agree in attributing to persons of erotic type certain general characteristics which accord with those negative and positive standards we may frame on the basis of castration, of puberty, and of detumescence. It may be worth while to note a few of these characteristics briefly.
The abnormal lengthening of the long bones at the age of puberty in the castrated is, as we have seen, very pronounced. There is little tendency to associate length of limb with an erotic temperament, and a certain amount of data as well as of more vague opinion points in the opposite direction. The Arabs would appear to believe that it is short rather than tall people in whom the sexual instinct is strongly developed, and we read in the _Perfumed Garden_: "Under all circumstances little women love coitus more and evince a stronger affection for the virile member than women of a large size." In his elaborate investigation of criminals Marro found that prostitutes and women guilty of sexual offenses, as also male sexual offenders, tend to be short and thick set.[147] In European folk-lore the thick, bull neck is regarded as a sign of strong sexuality.[148] Mantegazza refers to a strong sexual temperament as being associated with arrest or disorder of bony development, and Marro suggests that the proverbial salacity of rachitic individuals may be due to an increased activity of the sexual organs.[149] It may be added that acromegaly, with its excessive bony growths, tends to be associated with premature sexual involution.
A further point which is frequently mentioned in the case of women is the development of the chief secondary sexual regions: the pelvis and the breasts. It is, indeed, almost inevitable that there should be some degree of correlation between the aptitude for bearing children and the aptitude for experiencing detumescence. The reality of such a connection is not only evidenced by medical observations, but receives further testimony in popular beliefs. In Italy women with large buttocks are considered wanton, and among the South Slavs they are regarded as especially fruitful.[150] Blumenbach asserted that precocious venery will enlarge the breasts, and believed that he had found evidence of this among young London prostitutes.[151] The association of the aptitude for detumescence with a tendency to a deep rather than to a high voice, both in men and women, has frequently been noted and has seldom been denied. The onset of puberty always affects the voice; in general, Biérent states, the more bass the voice is the more marked is the development of the sexual apparatus; "a very robust man, with very developed sexual organs, and very dark and abundant hairy system, a man of strong puberty in a word, is nearly always a bass."[152] The influence of sexual excitement in deepening the voice is shown by the rules of sexual hygiene prescribed to tenors, while a bass has less need to observe similar precautions. In women every phase of sexual life--puberty, menstruation, coitus, pregnancy--tends to affect the voice and always by giving it a deeper character. The deepening of the voice by sexual intercourse was an ancient Greek observation, and Martial refers to a woman's good or bad singing as an index to her recent sexual habits. Prostitutes tend to have a deep voice. Venturi points out that married women preserve a fresh voice to a more advanced age than spinsters, this being due to the precocious senility in the latter of an unused function. Such a phenomenon indicates that the relationship of detumescence to the deepening of the voice is not quite simple. This is further indicated by the fact that in robust men abstinence still further deepens the voice