118 them small families are becoming the rule

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Unformatted text preview: sexes?[1] I must refer the reader to the spets in this matter, but can assure him that no one knows. With the rise of Mandel's theory of heredity, it has been assumed that such a scheme offers a wider variety of possible character combinations. At present it is safe to say that no one can give a valid reason for the existence of male and female, and that while this elaboration of the reproducing individual into CHAPTER XIV. 117 two parts may be necessary for some purpose, at first glance it appears like an interesting but mysterious complication. [1] See Lloyd Morgan's book on sex. I refer the reader to textbooks in anatomy and embryology, and to the spets on sex like Krafft-Ebbing, Havelock Ellis and Ploss for details as to the differences between man and woman. There are first the essential organs of generation, differing in the two sexes, the ovary furnishing the egg, the testes furnishing the seed or sperm; then the organs of sexual contact; the secondary sex characteristics, such as stature, distribution of hair, deposits of fat, shape of body and especially of the pelvis, the voice, smoothness of skin, muscular development, etc. There is an orderly evolution in the development of sex characters which starts with earliest embryo life and goes on regularly until puberty, when there is an extraordinary development of latent characters and peculiarities. After puberty maturity is reached by easy stages, and then comes involution or the recession of sex characters. This is reached in woman rather suddenly and in man more gradually. The completely differentiated man differs from his completely differentiated mate in the texture of his hair, skin, nails; in the width and mobility of pupils, in the color of his sclera, etc., as well as in the more essential sex organs. Indeed there are very essential bodily differences that are obviously important though not well understood. One is that the bodily temperature of man is slightly higher than that of woman, and that he has five million red blood corpuscles to every cubic millimeter of his blood, whi...
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This note was uploaded on 09/26/2011 for the course PSYCHOLOGY 110 taught by Professor Kannan during the Spring '11 term at Anna University Chennai - Regional Office, Coimbatore.

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