In a series of 116 German women in whom the operation of removing the ovaries was performed, Pfister usually noted briefly in what way the sexual impulse was affected by the operation ("Die Wirkung der Castration auf den Weiblichen Organismus," Archiv für Gynäkologie, 1898, p. 583). In 13 cases (all but 3 unmarried) the presence of sexual desire at any time was denied, and 2 of these expressed disgust of sexual matters. In 12 cases the point is left doubtful. In all the other cases sexual desire had once been present, and in 2 or 3 cases it was acknowledged to be so strong as to approach nymphomania. In about 30 of these (not including any in which it was previously very strong) it was extinguished by castration, in a few others it was diminished, and in the rest unaffected. Thus, when we exclude the 12 cases in which the point was not apparently investigated, and the 10 unmarried women, in whom it may have been latent or unavowed, we find that, of 94 married women, 91 women acknowledged the existence of sexual desire and only 3 denied it.
Schröter, again in Germany, has investigated the manifestations of the sexual impulse among 402 insane women in the asylum at Eichberg in Rheingau. ("Wird bei jungen Unverheiratheten zur Zeit der Menstruation stärkere sexuelle Erregheit beobaehtet?" Allgemeine Zeitschrift für Psychiatrie, vol. lvi, 1899, pp. 321-333.) There is no reason to suppose that the insane represent a class of the community specially liable to sexual emotion, although its manifestations may become unrestrained and conspicuous under the influence of insanity; and at the same time, while the appearance of such manifestations is evidence of the aptitude for sexual emotions, their absence may be only due to disease, seclusion, or to an intact power of self-control.
Of the 402 women, 166 were married and 236 unmarried. Schröter divided them into four groups: (1) those below 20; (2) those between 20 and 30; (3) those between 30 and 40; (4) those from 40 to the menopause. The patients included persons from the lowest class of the population, and only about a quarter of them could fairly be regarded as curable. Thus the manifestations of sexuality were diminished, for with advance of mental disease sexual manifestations cease to appear. Schröter only counted those cases in which the sexual manifestations were decided and fairly constant at the menstrual epoch; if not visibly manifested, sexual feeling was not taken into account. Sexual phenomena accompanied the entry of the menstrual epoch in 141 cases: i.e., in 20 (or in the proportion of 72 per cent.) of the first group, consisting entirely of unmarried women; in 33 (or 28 per cent.) of the second group; in 55 (or 35 per cent.) of the third group; and in 33 (or 33 per cent.) of the fourth group. It was found that 181 patients showed no sexual phenomena at any time, while 80 showed sexual phenomena frequently between the menstrual epochs, but only in a slight degree, and not at all during the period. At all ages sexual manifestations were more prevalent among the unmarried than among the married, though this difference became regularly and progressively less with increase in age.
Schröter inclines to think that sexual excitement is commoner among insane women belonging to the lower social classes than in those belonging to the better classes. Among 184 women in a private asylum, only 13 (6.13 per cent.) showed very marked and constant excitement at menstrual periods. He points out, however, that this may be due to a greater ability to restrain the manifestations of feeling.
There is some interest in Schröter's results, though they cannot be put on a line with inquiries made among the sane; they only represent the prevalence of the grossest and strongest sexual manifestations when freed from the restraints of sanity.
As a slight contribution toward the question, I have selected a series of 12 cases of women of whose sexual development I possess precise information, with the following results: In 2 cases distinct sexual feeling was experienced spontaneously at the age of 7 and 8, but the complete orgasm only occurred some years after puberty; in 5 cases sexual feeling appeared spontaneously for a few months to a year after the appearance of menstruation, which began between 12 and 14 years of age, usually at 13; in another case sexual feeling first appeared shortly after menstruation began, but not spontaneously, being called out by a lover's advances; in the remaining 4 cases sexual emotion never became definite and conscious until adult life (the ages being 26, 27, 34, 35), in 2 cases through being made love to, and in 2 cases through self-manipulation out of accident or curiosity. It is noteworthy that the sexual feelings first developed in adult life were usually as strong as those arising at puberty. It may be added that, of these 12 women, 9 had at some time or another masturbated (4 shortly after puberty, 5 in adult life), but, except in 1 case, rarely and at intervals. All belong to the middle class, 2 or 3 leading easy, though not idle, lives, while all the others are engaged in professional or other avocations often involving severe labor. They differ widely in character and mental ability; but, while 2 or 3 might be regarded as slightly abnormal, they are all fairly healthy.
I am inclined to believe that the experiences of the foregoing group are fairly typical of the social class to which they belong. I may, however, bring forward another series of 35 women, varying in age from 18 to 40 (with 2 exceptions all over 25), and in every respect comparable with the smaller group, but concerning whom my knowledge, though reliable, is usually less precise and detailed. In this group 5 state that they have never experienced sexual emotion, these being all unmarried and leading strictly chaste lives; in 18 cases the sexual impulse may be described as strong, or is so considered by the subject herself; in 9 cases it is only moderate; in 3 it is very slight when evoked, and with difficulty evoked, in 1 of these only appearing two years after marriage, in another the exhaustion and worry of household cares being assigned for its comparative absence. It is noteworthy that all the more highly intelligent, energetic women in the series appear in the group of those with strong sexual emotions, and also that severe mental and physical labor, even when cultivated for this purpose, has usually had little or no influence in relieving sexual emotion.
An American physician in the State of Connecticut sends me the following notes concerning a series of 13 married women, taken, as they occurred, in obstetric practice. They are in every way respectable and moral women:—
"Mrs. A. says that her husband does not give her sufficient sexual attention, as he fears they will have more children than he can properly care for. Mrs. B. always enjoys intercourse; so does Mrs. C. Mrs. D. is easily excited and very fond of sexual attention. Mrs. E. likes intercourse if her husband is careful not to hurt her. Mrs. F. never had any sexual desire until after second marriage, but it is now very urgent at times. Mrs. G. is not easily excited, but has never objected to her husband's attention. Mrs. H. would prefer to have her husband exhibit more attention. Mrs. I. never refused her husband, but he does not trouble her much. Mrs. J. thinks that three or four times a week is satisfactory, but would not object to nightly intercourse. Mrs. K. does not think that her husband could give her more than she would like. Mrs. L. would prefer to live with a woman if it were not for sexual intercourse. Mrs. M., aged 40, says that her husband, aged 65, insists upon intercourse three times every night, and that he keeps her tired and disgusted. She each time has at least one orgasm, and would not object to reasonable attention."