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re acquainted with bearded women, athletic women, as well as beardless men and puny men. From the mental point of view, there are also viragos and men with feminine instincts. Imbeciles are not wanting in both sexes, but no reasonable person will deny that an intelligent woman is superior to a narrow-minded man even from the purely intellectual point of view. In spite of these difficulties, I shall attempt to bring forward the principal points which distinguish, in a general way, the masculine mind from the feminine, relying on my own observations and especially on the mental phenomena of both sexes. =The Weight of the Brain.=--According to statistics, the weight of the brain in men of our race is on the average 1350 grammes, while that of women averages 1200 grammes. The absolute weight is, however, not of much importance, because part of the cerebral substance in the larger animals is only for the supply of a greater number of cellular elements of the rest of the body, which necessitates a greater number of nervous elements. To make the matter clear, it is necessary to separate the weight of the cerebral hemispheres from the other nervous centers, such as the cerebellum, corpora striata, the optic thalami, the mid-brain, the pons Varolii, the medulla oblongata and the spinal cord, for these centers constitute parts which are phylogenetically older, that is to say, inherited from lower animal ancestors. Compared with the cerebral hemispheres, these nerve centers are relatively more important in other vertebrates than in man, and are in more constant proportion to the size of the body, the muscular, glandular and sensory elements of which they supply. When the intelligence is about the same, they are, therefore, compared with the cerebral hemispheres, much more developed in the larger than in the smaller animals. For example, they are very large in the ox, but small in mice. I have weighed a considerable number of human brains separated in this way with the following results: CEREBRAL HEMISPHERES OTHER CEREBRAL CENTERS Man 1060 grammes, 78.5% | 290 grammes, 21.5% Woman 955 grammes, 77.9% | 270 grammes, 22.1% Thus the cerebellum and basal ganglia are a little smaller in men than in women, compared with the cerebral hemispheres. These figures appear to show that the cerebral hemispheres in woman are on the average a little smaller than in man, even proportionately to the stature; for, ac
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