Rothe, in his investigation of the pubic hair of 1000 Berlin women, found that no two women were really alike in this respect, but there was a tendency to two main types of arrangement, with minor subdivisions, according as the hair tended to grow chiefly in the middle line extending laterally from that line, or to grow equally over the whole extent of the pubic region; these two groups included half the cases investigated.
In men the pubic hair normally ascends anteriorly in a faint line up to the navel, with tendency to form a triangle with the apex above, and posteriorly extends backwards to the anus. In women these anterior and posterior extensions are comparatively rare, or at all events are only represented by a few stray hairs. Rothe found this variation in 4 per cent. of North German women, though a triangle of hair was only found in 2 per cent.; Lombroso found it in 5 per cent, of Italian women; Bergh found it in only 1.6 per cent. among 1000 Danish prostitutes, all sixteen of whom with three exceptions were brunettes. In Vienna, among 600 women, Coe found only 1 per cent, with this distribution of hair, and states that they were women of decidedly masculine type, though Ploss and Bartels, as well as Rothe, find, however, that heterogeny, as they term the masculine distribution, is more common in blondes. The anterior extension of hair is usually accompanied by the posterior extension around the anus, usually very slight, but occasionally as pronounce as in men. (According to Rothe, however, anterior heterogeny comparatively rare.) These masculine variations in the extension of the pubic hair appear to be not uncommonly associated with other physical and psychic anomalies; it is on this account that they have sometimes been regarded as indications of a vicious or a criminal temperament; they are, however, found in quite normal women.
The pubic hair of women is usually shorter than that of men, but thick, and the individual hairs stronger and larger in diameter than those of men, as Pfaff first showed; dark hair is usually stronger than light. In both length and size the individual variations are considerable. The usual length is about 2 inches, or 3-5 centimeters, occasionally reaching about 4 inches, or 9-10 centimeters, in the larger curls. In a series of 100 women attended during confinement in London and the north of England I have only once (in a rather blonde Lancashire woman) found the hair on labia reaching a conspicuous length of several inches and forming an obstruction to the manipulations involved in delivery. But Jahn delivered a woman whose pubic hair was longer than that of her head, reaching below her knee; Paulini also knew a woman whose pubic hair nearly reached her knees and was sold to make wigs; Bartholin mentions a soldier's wife who plaited her pubic hair behind her back; while Brantôme has several references to abnormally long hair in ladies of the French court during the sixteenth century. In 8 cases out of 2200 Bergh found the pubic hair forming a large curly wig extending to the iliac spines. The individual hairs have occasionally been found so stiff and brush-like as to render coitus difficult.
In color the pubic hair, while generally approximating to that of the head, is sometimes (according to Rothe, in Germany, in one-third cases) lighter, and sometimes somewhat darker, as is found to be the case by Coe, especially in brunettes, and also by Bergh, in Denmark. Bergh remarks that it is generally intermediate in color between the eyebrows and the axillary hair, the latter being more or less decolorized by sweat, and that, owing to the influence of the urine and vaginal discharges, the labial hair is paler than that on the mons; blondes with dark eyebrows usually have dark hair on the mons. The hair on this spot, as Aristotle observed, is usually the last to turn gray.
The key to the genital apparatus in women from the psychic point of view, and, indeed, to some extent, its anatomical center, is to be found in the clitoris. Anatomically and developmentally the clitoris is the rudimentary analogue of the masculine penis. Functionally, however, its scope is very much smaller. While the penis both receives and imparts specific voluptuous sensations, and is at the same time both the intromittent organ for the semen and the conduit for the urine, the sole function of the clitoris is to enter into erection under the stress of sexual emotion and receive and transmit the stimulatory voluptuous sensations imparted to it by friction with the masculine genital apparatus. It is so insignificant an organ that it is only within recent times that its homology with the penis has been realized. In 1844 Kobelt wrote in his important book, _Die Mannlichen und Weiblichen Wollust-Organe_, that in his attempt to show that the female organs are exactly analogous to the male the reader will probably be unable to follow him, while even Johannes Müller, the father of scientific physiology, declared at about the same period that the clitoris is essentially different from the penis. It is indeed but three centuries since the clitoris was so little known that (in 1593) Realdus Columbus actually claimed the honor of discovering it. Columbus was not its discoverer, for Fallopius speedily showed that Avicenna and Albucasis had referred to it.[85] The Arabs appear to have been very familiar with it, and, from the various names they gave it, clearly understood the important part it plays in generating voluptuous emotion.[86] But it was known in classic antiquity; the Greeks called it myrton, the myrtle-berry; Galen and Soranus called it nymphê because it is covered as a bride is veiled, while the old Latin name was _tentigo_, from its power of entering into erection, and _columella_, the little pillar, from its shape. The modern term, which is Greek and refers to the sensitiveness of the part to voluptuous titillation, is said to have originated with Suidas and Pollux.[87] It was mentioned, though not adopted, by Rufus.
"The clitoris," declared Haller, "is a part extremely sensible and wonderfully prurient." It is certainly the chief though by no means the only point through which the immediate call to detumescence is conveyed to the female organism. It is, indeed, as Bryan Robinson remarks, "a veritable electrical bell button which, being pressed or irritated, rings up the whole nervous system."
The nervous supply of this little organ is very large, and the dorsal nerve of the clitoris is relatively three or four times larger than that of the penis. Yet the sensitive point of this organ is only 5 to 7 millimeters in extent. The length of the clitoris is usually rather over 2 centimeters (or about an inch) and 3 centimeters when erect; a length of 4 centimeters or more was regarded by Martineau as within the normal range of variation. It is not usual to find the clitoris longer than this in Europe (for among some races like the negro the clitoris is generally large), but all degrees of magnitude may be found as rare exceptions. (See, e.g., Sir J.Y. Simpson, "Hermaphrodites," _Obstetric Memoirs and Contributions_, vol. ii, pp. 217-226; also Dickinson, loc. cit.) It was formerly thought that the clitoris is easily enlarged by masturbation, and Martineau believed that in this way it might be doubled in length. It is probable that slight enlargement of the clitoris may be caused by very frequent masturbation, but only to an insignificant extent, and it is impossible to diagnose masturbation from the size of the clitoris. Among the women of Lake Nyassa, as well as in the Caroline Islands, special methods are practiced for elongating the clitoris, but in Europe, at all events, it is probable that the variations in the size of the organ are mainly congenital. It may well be that a congenitally large clitoris is associated with an abnormally developed excitability of the sexual apparatus. Tilt stated (_On Uterine and Ovarian Inflammation_, p. 37) that in his experience there was a frequent though not invariable connection between a large clitoris and sexual proclivity. (Schurig referred to a case of intense and life-long sexual obsession associated with an extremely large clitoris, _Gynæcologia_, pp. 16-17.) Of recent years considerable importance has been attached by some gynecologists (e.g., R.T. Morris, "Is Evolution Trying to Do Away With the Clitoris?" _Transactions American Association of Obstetricians and Gynecologists_, vol. v, 1893) to preputial adhesions around the clitoris as a source of nervous disturbance and invalidism in young women.
While the clitoris is anatomically analogous to the penis, its actual mechanism under the stress of sexual excitement is somewhat different. As Liétaud long since pointed out, it cannot rise freely in erection as the penis can; it is apparently bound down by its prepuce and its frenulum. Waldeyer, in his book on the pelvis, states more precisely that, unlike the penis, when erect it retains its angle, only this becomes somewhat rounded so that the organ is to some slight extent lifted and protruded. Waldeyer considered that the clitoris was thus perfectly fitted to fulfill its part as the recipient of erotic stimulation from friction by the penis. Adler, however, has pointed out with considerable justice, that this is not altogether the case. The clitoris was developed in mammals who practiced the posterior mode of coitus; in this position the clitoris was beneath the penis, which was thus easily able in coitus to press it against the pubic bone close beneath which it is situated, and thus impart the compression and friction which the feminine organ craves. But in the human anterior mode of coitus it is not necessarily brought into close contact with the penis during the act of coitus, and thus fails to receive powerful stimulation. Its restricted position, which is an advantage in posterior coitus, is a disadvantage in anterior coitus. Adler observes that it thus comes about that the human method of coitus, while by bringing breast to breast and face to face it has added a new dignity and refinement, a fresh source of enjoyment, to the embrace of the sexes, has not been an unmixed advantage to woman, for while man has lost nothing by the change, woman has now to contend with an increased difficulty in attaining an adequate amount of pressure on that "electric button" which normally sets the whole mechanism in operation.[88] We may well bring into connection with the changed conditions brought about by anterior coitus the interesting fact that while the clitoris remains the most exquisitely sensitive of the sexual centers in woman, voluptuous sensitivity is much more widely diffused in woman than in man. Over the whole body, indeed, it is apt to be more distinctly marked than is usually the case in man. But even if we confine ourselves to the genital region, while in man that portion of the penis which enters the vagina, and especially the glans, is normally the only portion which, even during turgescence, is sensitive to voluptuous contacts, in woman the whole of the region comprised within the larger lips, including even the anus and internally the vagina and the vaginal portion of the womb,[89] become sensitive to voluptuous contacts. Deprived of the penis the ability of a man to experience specifically sexual sensations becomes very limited indeed. But the loss of the clitoris or of any other structure involves no correspondingly serious disability on women. Ablation of the clitoris for sexual hyperæsthesia has for this reason been abandoned, except under special circumstances. The members of the Russian Skoptzy sect habitually amputate the clitoris, nymphæ, and breasts, yet many young Skoptzy women told the Russian physician, Guttceit, that they were perfectly well able to enjoy coitus.
Freud believes that in very young girls the clitoris is the exclusive seat of sexual sensation, masturbation at this age being directed to the clitoris alone, and spontaneous sexual excitement being confined to twitchings and erection of this organ, so that young girls are able, from their own experience, to recognize without instruction the signs of sexual excitement in boys. At a later age sexual excitability spreads from the clitoris to other regions--just as the easy inflammability of wood sets light to coal--though in the male the penis remains from first to last normally the almost exclusive seat of specific excitability. (S. Freud, _Drei Abhandlungen zur Sexualtheorie_, p. 62.)
The anus would, however, seem to be sometimes an erogenous zone even at an early age. Titillation of the anus appears to be frequently pleasurable in women; and this is not surprising considering the high degree of erotic sensitivity which is easily developed at the body orifices where skin meets mucous membrane. (Thus the meatus of the urethra is a highly erogenous zone, as is sufficiently shown by the frequency with which hair-pins and other articles used in masturbation find their way into the bladder.) It is in this germinal sensitivity, undoubtedly, that we find a chief key to the practice of _pedicatio_. Freud attaches great importance to the anus as a sexually erogenous zone at a very early age, and considers that it very frequently makes its influence felt in this respect. He believes that intestinal catarrhs in very early life and hæmorrhoids later tend to develop sensibility in the anus. He finds an indication that the anus has become a sexually erogenous zone when children wish to allow the contents of the rectum to accumulate so that defecation may by its increased difficulty involve voluptuous sensations, and adds that masturbatory excitation of the anus with the fingers is by no means rare in older children. (S. Freud, _Op. cit._, pp. 40-42.) A medical correspondent in India tells me of a European lady who derived, she said, "quite as much, indeed more," pleasure from digitally titillating her rectum as from vulvo-vaginal titillation; she had several times submitted to _pedicatio_ and enjoyed it, though it was painful during penetration. The anus may retain this erogenous irritability even in old age, and Routh mentions the case of a lady of over 70, the reverse of lustful, who was so excited by the act of defecation that she was invariably compelled to masturbate, although this state of things was a source of great mental misery to her. (C.H.F. Routh, _British Gynæcological Journal_, February, 1887, p. 48.)
Bölsche has sought the explanation of the erogenous nature of the anus, and the key to _pedicatio_, in an atavistic return to the very remote amphibian days when the anus was combined with the sexual parts in a common cloaca. But it is unnecessary to invoke any vestigial inheritance from a vastly remote past when we bear in mind that the innervation of these two adjoining regions is inevitably very closely related. The presence of a body exit with its marked and special sensitivity at a point where it can scarcely fail to receive the nervous overflow from an immensely active center of nervous energy quite adequately accounts for the phenomenon in question.
The inner lips, the nymphæ or labia minora, running parallel with the greater lips which enclose them, embrace the clitoris anteriorly and extend backward, enclosing the urethral exit between them as well as the vaginal entrance. They form little wings whence their old Latin name, _alæ_, and from their resemblance to the cock's comb were by Spigelius termed crista galli. The red and (especially in brunettes) dark appearance of the nymphæ suggests that they are mucous membrane and not integumentary; it is, however, now considered that even on the inner surface they are covered by skin and separated from the mucous membrane by a line.[90] In structure, as described by Waldeyer, they consist of fine connective tissue rich in elastic fibers as well as some muscular tissue, and full of large veins, so that they are capable of a considerable degree of turgescence resembling erection during sexual excitement, while Ballantyne finds that the nymphæ are supplied to a notable extent with nervous end-organs.
More than any other part of the sexual apparatus in either sex, the lesser lips, on account of their shape, their position, and their structure, are capable of acquired modifications, more especially hypertrophy and elongation. By stretching, it is stated, a labium can be doubled in its dimensions. The "Hottentot apron," or elongated nymphæ, commonly found among some peoples in South Africa, has long been a familiar phenomenon. In such cases a length or transverse diameter of 3 to 5 centimeters is commonly found. But such elongated nymphæ are by no means confined to one part of the world or to one race; they are quite common among women of European race, and reach a size equal to most of the more reliably recorded Hottentot cases. Dickinson, who has very carefully studied this question in New York, finds that in 1000 consecutive gynæcological cases the labia showed some form of hypertrophy in 36 per cent., or more than 1 in 3; while among 150 of these cases who were neurasthenic, the proportion reached 56 per cent., even when minor or doubtful enlargements were disregarded. Bergh, in about 16 per cent. cases, found very enlarged nymphæ, the height reached in about 5 per cent. of the cases of enlargement being nearly six centimeters. Ploss and Bartels, in a full discussion: of the "Hottentot apron," come to the conclusion that this condition is perhaps in most cases artificially produced. It is known that among the Basutos it is the custom for the elder girls to manipulate the nymphæ of younger children, when alone with them, almost from birth, and on account of the elastic nature of these structures such manipulation quite adequately accounts for the elongation. It is not necessary to suppose that the custom is practiced for the sake of producing sexual stimulation--though this may frequently occur--since there are numerous similar primitive customs involving deformation of the sexual organs without the production of sexual excitement. Dickinson has come to a similar conclusion as regards the corresponding elongation of the nymphæ in civilized European women. In 361 out of 1000 women of good social class he found elongation or thickening, often with a notable degree of wrinkling and pigmentation, and believes that this is always the result of frequently repeated masturbation practiced with the separation of the nymphæ; in 30 per cent. of the cases admission of masturbation was made.[91] While this conclusion is probably correct in the main, it requires some qualification. To assert that whenever in women who have not been pregnant the marked protrusion of the inner lips beyond the outer lips means that at some period manipulation has been practiced with or without the production of sexual excitement is to make too absolute a statement. It is highly probable that the nymphæ, like the clitoris, are congenitally more prominent in some of the lower human races, as they are also in the apes; among the Fuegians, for instance, according to Hyades and Deniker, the labia minora descend lower than in Europeans, although there is not the slightest reason to suppose that these women practice any manipulations. Among European women, again, the nymphæ sometimes protrude very prominently beyond the labia majora in women who are organically of somewhat infantile type; this occurs in cases in which we may be convinced that no manipulations have ever been practiced.[92] It is difficult to speak very decisively as to the function of the labia minora. They doubtless exert some amount of protective influence over the entrance to the vagina, and in this way correspond to the lips of the mouth after which they are called. They fulfill, however, one very definite though not obviously important function which is indicated by the mythologic name they have received. There is, indeed, some obscurity in the origin of this term, nymphæ, which has not, I believe, been satisfactorily cleared up. It has been stated that the Greek name nymphê has been transferred from the clitoris to the labia minora. Any such transfer could only have taken place when the meaning of the word had been forgotten, and nymphê had become the totally different word _nymphæ_, the goddesses who presided over streams. The old anatomists were much exercised in their minds as to the meaning of the name, but on the whole were inclined to believe that it referred to the action of the labia minora in directing the urinary stream. The term nymphæ was first applied in the modern sense, according to Bergh, in 1599, by Pinæus, mainly from the influence of these structures on the urinary stream, and he dilated in his _De Virginitate_ on the suitability of the term to designate so poetic a spot.[93] In more modern times Luschka and Sir Charles Bell considered that it is one of the uses of the nymphæ to direct the stream of urine, and Lamb from his own observation thinks the same conclusion probable. In reality there cannot be the slightest doubt about the function of the nymphæ, as, in Hyrtl's phrase, "the naiads of the urinary source," and it can be demonstrated by the simplest experiment.[94] The nymphæ form the intermediate portal of the vagina, as the canal which conducts to the womb was in anatomy first termed (according to Hyrtl) by De Graaf.[95] It is a secreting, erectile, more or less sensitive canal lined by what is usually considered mucous membrane, though some have regarded it as integument of the same character as that of the external genitals; it certainly resembles such integument more than, for instance, the mucous membrane of the rectum. In the woman who has never had sexual intercourse and has been subjected to no manipulations or accidents affecting this region, the vagina is closed by a last and final gate of delicate membrane--scarcely admitting more than a slender finger--called the hymen.
The poets called the hymen "fios virginitatis," the flower of virginity, whence the medico-legal term _defloratio_. Notwithstanding the great significance which has long been attached to the phenomena connected with it, the hymen was not accurately known until Vesalius, Fallopius, and Spigelius described and named it. It was, however, recognized by the Arab authors, Avicenna and Averroes. The early literature concerning it is summarized by Schurig, _Muliebria_, 1729, Section II, cap. V. The same author's _Parthenologia_ is devoted to the various ancient problems connected with the question of virginity.
To say that this delicate piece of membrane is from the non-physical point of view a more important structure than any other part of the body is to convey but a feeble idea of the immense importance of the hymen in the eyes of the men of many past ages and even of our own times and among our own people.[96] For the uses of the feminine body, or for its beauty, there is no part which is more absolutely insignificant. But in human estimation it has acquired a spiritual value which has made it far more than a part of the body. It has taken the place of the soul, that whose presence gives all her worth and dignity, even her name, to the unmarried woman, her purity, her sexual desirability, her market value. Without it--though in all physical and mental respects she might remain the same person--she has sometimes been a mark for contempt, a worthless outcast.[97] So fragile a membrane scarcely possesses the reliability which should be possessed by a structure whose presence or absence has often meant so much. Its absence by no means necessarily signifies that a woman has had intercourse with a man. Its presence by no means signifies that she has never had such intercourse.
There are many ways in which the hymen may be destroyed apart from coitus. Among the Chinese (and also, it would appear, in India and some other parts of the East) the female parts are from infancy kept so scrupulously clean by daily washing, the finger being introduced into the vagina, that the hymen rapidly disappears, and its existence is unknown even to Chinese doctors. Among some Brazilian Indians a similar practice exists among mothers as regards their young children, less, however, for the sake of cleanliness than in order to facilitate sexual intercourse in future years. (Ploss and Bartels, _Das Weib_, vol. i, Chapter VI.) The manipulations of vaginal masturbation will, of course, similarly destroy the hymen. It is also quite possible for the hymen to be ruptured by falls and other accidents. (See, e.g., a lengthy study by Nina-Rodrigues, "Des Ruptures de l'Hymen dans les Chutes," _Annales d'Hygiène Publique_, September, 1903.)
On the other hand, integrity of the hymen is no proof of virginity, apart from the obvious fact that there may be intercourse without penetration. (The case has even been recorded of a prostitute with syphilitic condylomata, a somewhat masculine type of pubic arch, and vulva rather posteriorly placed, whose hymen had never been penetrated.) The hymen may be of a yielding or folding type, so that complete penetration may take place and yet the hymen be afterwards found unruptured. It occasionally happens that the hymen is found intact at the end of pregnancy. In some, though not all, of these cases there has been conception without intromission of the penis. This has occurred even when the entrance was very minute. The possibility of such conception has long been recognized, and Schurig (_Syllepsilogia_, 1731, Section I, cap. VIII, p. 2) quotes ancient authors who have recorded cases. For some typical modern cases see Guérard (_Centralblatt für Gynäkologie_, No. 15, 1895), in one of whose cases the hymen of the pregnant woman scarcely admitted a hair; also Braun (ib., No. 23, 1895).
The hymen has played a very definite and pronounced part in the social and moral life of humanity. Until recently it has been more difficult to decide what precise biological function it has exercised to ensure its development and preservation. Sexual selection, no doubt, has worked in its favor, but that influence has been very limited and comparatively very recent. Virginity is not usually of any value among peoples who are entirely primitive. Indeed, even in the classic civilization which we inherit, it is easy to show that the virgin and the admiration for virginity are of late growth; the virgin goddesses were not originally virgins in our modern sense. Diana was the many-breasted patroness of childbirth before she became the chaste and solitary huntress, for the earliest distinction would appear to have been simply between the woman who was attached to a man and the woman who followed an earlier rule of freedom and independence; it was a later notion to suppose that the latter woman was debarred from sexual intercourse. We certainly must not seek the origin of the hymen in sexual selection; we must find it in natural selection. And here it might seem at first sight that we come upon a contradiction in Nature, for Nature is always devising contrivances to secure the maximum amount of fertilization. "Increase and multiply" is so obviously the command of Nature that the Hebrews, with their usual insight, unhesitatingly dared to place it in the mouth of Jehovah. But the hymen is a barrier to fertilization. It has, however, always to be remembered that as we rise in the zoölogical scale, and as the period of gestation lengthens and the possible number of offspring is fewer, it becomes constantly more essential that fertilization shall be effective rather than easy; the fewer the progeny the more necessary it is that they shall be vigorous enough to survive. There can be little doubt that, as one or two writers have already suggested, the hymen owes its development to the fact that its influence is on the side of effective fertilization. It is an obstacle to the impregnation of the young female by immature, aged, or feeble males. The hymen is thus an anatomical expression of that admiration of force which marks the female in her choice of a mate. So regarded, it is an interesting example of the intimate manner in which sexual selection is really based on natural selection. Sexual selection is but the translation into psychic terms of a process which has already found expression in the physical texture of the body.
It may be added that this interpretation of the biological function of the hymen is supported by the facts of its evolution. It is unknown among the lower mammals, with whom fertilization is easy, gestation short and offspring numerous. It only begins to appear among the higher mammals in whom reproduction is already beginning to take on the characters which become fully developed in man. Various authors have found traces of a rudimentary hymen, not only in apes, but in elephants, horses, donkeys, bitches, bears, pigs, hyenas, and giraffes. (Hyrtl, _Op. cit._, vol. ii, p. 189; G. Gellhoen, "Anatomy and Development of the Hymen," _American Journal Obstetrics_, August, 1904.) It is in the human species that the tendency to limitation of offspring is most marked, combined at the same time with a greater aptitude for impregnation than exists among any lower mammals. It is here, therefore, that a physical check is of most value, and accordingly we find that in woman alone, of all animals, is the hymen fully developed.
FOOTNOTES: [72] "Analysis of the Sexual Impulse," in vol. iii of these _Studies_.
[73] "The accomplishment of no other function," Hyrtl remarks, "is so intimately connected with the mind and yet so independent of it."
[74] The process is still, however, but imperfectly understood; see Art. "Fécondation," by Ed. Retterer, in Richet's _Dictionnaire de Physiologie_, vol. vi, 1905.