The Sexual Life of the Child. Albert Moll
attempt at a general and systematic teaching of draughtsmanship to the members of one sex to the exclusion of members of the other.
Without further discussing the question, to what extent in earlier generations there has been any cultivation of psychical differences, I believe that we are justified in asserting that at the present time the sexual differentiation manifested in respect of quite a number of psychical qualities is the result of direct inheritance. It would be quite wrong to assume that all these differences arise in each individual in consequence of education. It does, indeed, appear to me to be true that inherited tendencies may be increased or diminished by individual education; and further, that when the inherited tendency is not a very powerful one, it may in this way even be suppressed. Observations on animals which exhibit sexual differentiation very early in life, also support the notion of the inherited character of certain tendencies; for instance, the movements of male animals often differ from those of the females of the same species.
We must not forget the frequent intimate association between structure and function. This well-proved connexion would lead us a priori, from the more powerful muscular development of boys, to infer the different inclinations of the two sexes. Rough outdoor games and wrestling thus correspond to the physical constitution of the boy. So, also, it is by no means improbable that the little girl, whose pelvis and hips have already begun to indicate by their development their adaptation for the supreme functions of the sexually mature woman, should experience obscurely a certain impulsion towards her predestined maternal occupation, and that her inclinations and amusements should in this way be determined. Many, indeed, and above all the extreme advocates of women's rights, prefer to maintain that such sexually differentiated inclinations result solely from differences in individual education: if the boy has no enduring taste for dolls and cooking, this is because his mother and others have told him, perhaps with mockery, that such amusements are unsuited to a boy; whilst in a similar way the girl is dissuaded from the rough sports of boyhood. Such an assumption is the expression of that general psychological and educational tendency, which ascribes to the activity of the will an overwhelmingly powerful influence upon the development of the organs subserving the intellect, and secondarily also upon that of the other organs of the body. By the influence of the will, it is supposed by this school, certain association-tracts in the brain are developed; or at least certain tracts hitherto functionally inactive are rendered functionally active. We cannot dispute the fact that in such a way the activity of the will may, within certain limits, be effective, especially in cases in which the inherited tendency thus counteracted is comparatively weak; but only within certain limits. Thus we can understand how it is that in some cases, by means of education, a child is impressed with characteristics normally foreign to its sex; qualities and tendencies are thus developed which ordinarily appear only in a child of the opposite sex. But even though we must admit that the activity of the individual may operate in this way, none the less are we compelled to assume that certain tendencies are inborn. The failure of innumerable attempts to counteract such inborn tendencies by means of education throws a strong light upon the limitations of the activity of the individual will; and the same must be said of a large number of other experiences.
It is, moreover, established beyond dispute that in certain cases, in consequence of an inborn predisposition, contrary sexual inclinations make their appearance, and that these represent a divergency from the proper sexual characters. It is with these mental sexual differential characters just as it is with the physical secondary sexual characters, any of which may, on occasion, make their appearance in the wrong sex, or may be wanting in the right one. We know that there exist women with beards, masculine larynges, and a masculine type of thorax; and, on the other hand, men with feminine mammæ, feminine larynges, and a feminine type of pelvis. Because we meet with such atypical instances, we are not therefore justified in inferring that it is by a mere arbitrary sport of nature that in the woman a great mammary development is normally associated with the development of the ovaries, and that in man the growth of the beard is associated with the development of the testicles. But just as in these respects there are certain exceptions, whose origin we are not always in a position to explain, so also are there exceptional sexual associations in respect of the secondary psychical sexual characters. Thus it comes to pass that many women exhibit masculine tendencies, and many men exhibit feminine tendencies. Unquestionably, the fact that psychical qualities, just as much as physical characters, may occasionally make their appearance in the wrong sex, does not invalidate the general truth of the statement that sexually differentiated psychical tendencies are inborn.
Occasionally, indeed, even in late childhood, this psychical differentiation is still but little marked. We must also bear in mind the fact that in many instances the bodily development of the girl—apart, of course, from the actual reproductive organs—differs but little, even during the second period of childhood, from that of the boy; and that in such cases the specific differentiation makes its first appearance later than is usual. We find boys also who have entered upon the period of youth (see p. 1) without exhibiting any trace of downy growth upon the upper lip or the chin; in some, the first definite growth of hair on the face may not occur until several years later. I remember also that I have seen boys in whom during the period of puberal development an enlargement of the mammæ took place, going so far that it was possible by pressure on the glands to expel fluid from the mammillary ducts; at a more advanced age, however, this mammary growth was arrested, and subsequently atrophy ensued.
But all these observations notwithstanding, the fact remains well established that even in childhood notable sexual differences make their appearance. Other observations, too, confirm this notion of sexual differentiation—for example, pathological experiences.
There are some diseases to which women are especially liable, others which occur by preference in men. To some extent, indeed, this is explained by the special exposure of one sex or the other to certain noxious influences. The neuroses that appear as the sequelæ of injuries are especially common in the male sex, because the occupations of men expose them more than women to injuries of all kinds. Of such cases, of course, we do not speak here. But there are some unquestionably hereditary morbid tendencies which manifest themselves by preference in one sex or the other, and such sexual predisposition shows itself even in childhood. I propose to give instances of this; some quoted from Möbius,18 some from other authors, and some taken from my own personal experience.
Chlorosis is a disease of feminine youth, but very often makes its appearance in childhood, especially towards the end of the second period of childhood, at this earlier age, also, attacking girls in preference to boys. Hæmophilia, on the other hand, and also certain hereditary forms of muscular atrophy, occur chiefly in males, and this in early childhood. Diabetes is principally a disease of adults, but occasionally it is met with in children also; among adults, there is a considerable preponderance of males affected with this disease when diabetes occurs in childhood, the disease also exhibits a preference for the male sex, although at this time the peculiar sex-incidence is less marked than in later life. Congenital defects of the heart are commoner in boys, the proportion obtained from a very large number of cases of this kind being 61.6 boys: 38.4 girls. Chorea (St. Vitus's dance) affects girls more often than boys, the ratio in this case being 2.5 girls: 1 boy. In the case of whooping cough, we find that two girls suffer for every one boy. As regards circumscribed facial atrophy, which usually begins during childhood, a preponderance of the disease in the female sex is also noticeable. Hysteria was formerly regarded as a typically feminine disease, and although this view has now been shown to be erroneous, the fact remains that girls and women are far more often affected than boys and men. As regards hysteria in childhood, Bruns19 states that the ratio of girls affected is to boys affected as 2:1. It is interesting to note that in the earlier years of childhood, prior, that is to say, to the age of nine years or thereabouts, no marked difference exists in the sex incidence of hysteria, the cases being distributed in the proportion, 55 per cent. girls, 45 per cent. boys; but after the age of nine, the proportion of girls affected with hysteria increases, while that of boys diminishes. Eulenburg,20 indeed, records 17 cases of hysteria, affecting children at ages nine to fourteen years; of these nine were boys, and eight girls. Clopatt, on the other hand, collected from the literature of the subject 272 cases of hysteria in young children, 96 being boys, and 176 girls. Typhoid is commoner in males; and Möbius lays stress