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 MALE AND FEMALE PLASMAS

The first thing expected of a book like this, the avowed object of which is a complete revision of facts hitherto accepted, is that it should expound a new and satisfactory account of the anatomical and physiological characters of the sexual types. Quite apart from the abstract question as to whether the complete survey of a subject so enormous is not beyond the powers of one individual, I must at once disclaim any intention of making the attempt. I do not pretend to have made sufficient independent investigations in a field so wide, nor do I think such a review necessary for the purpose of this book. Nor is it necessary to give a compilation of the results set out by other authors, for Havelock Ellis has already done this very well. Were I to attempt to reach the sexual types by means of the probable inferences drawn from his collected results, my work would be a mere hypothesis and science might have been spared a new book. The arguments in this chapter, therefore, will be of a rather formal and general nature; they will relate to biological principles, but to a certain extent will lay stress on the need for a closer investigation of certain definite points, work which must be left to the future, but which may be rendered more easy by my indications.

Those who know little of Biology may scan this section hastily, and yet run little risk of failing to understand what follows.

The doctrine of the existence of different degrees of masculinity and femininity may be treated, in the first place, on purely anatomical lines. Not only the anatomical form,