The importance of these abnormalities lies in the fact that they unexpectedly facilitate the understanding of the normal formation. A certain degree of anatomical hermaphroditism really belongs to the normal. In no normally formed male or female are traces of the apparatus of the other sex lacking; these either continue functionless as rudimentary organs, or they are transformed for the purpose of assuming other functions.
The conception which we gather from this long known anatomical fact is the original predisposition to bisexuality, which in the course of development has changed to monosexuality, leaving slight remnants of the stunted sex.
It was natural to transfer this conception to the psychic sphere and to conceive the inversion in its aberrations as an expression of psychic hermaphroditism. In order to bring the question to a decision, it was only necessary to have one other circumstance, viz., a regular concurrence of the inversion with the psychic and somatic signs of hermaphroditism.
But this second expectation was not realized. The relations between the assumed psychical and the demonstrable anatomical androgyny should never be conceived as being so close. There is frequently found in the inverted a diminution of the sexual impulse (H. Ellis) and a slight anatomical stunting of the organs. This, however, is found frequently but by no means regularly or preponderately. Thus we must recognize that inversion and somatic hermaphroditism are totally independent of each other.
Great importance has also been attached to the so-called secondary and tertiary sex characters and their aggregate occurrence in the inverted has been emphasized (H. Ellis). There is much truth in this but it should not be forgotten that the secondary and tertiary sex characteristics very frequently manifest themselves in the other sex, thus indicating androgyny without, however, involving changes in the sexual object in the sense of an inversion.
Psychic hermaphroditism would gain in substantiality if parallel with the inversion of the sexual object there should be at least a change in the other psychic qualities, such as in the impulses and distinguishing traits characteristic of the other sex. But such inversion of character can be expected with some regularity only in inverted women; in men the most perfect psychic manliness may be united with the inversion. If one firmly adheres to the hypothesis of a psychic hermaphroditism, one must add that in certain spheres its manifestations allow the recognition of only a very slight contrary determination. The same also holds true in the somatic androgyny. According to Halban, the appearance of individual stunted organs and secondary sex characters are quite independent of each other.[10]