Woman has the same right as man to develop her abilities and to employ them freely. She is a human being as well as man and should have the freedom of disposing of her own body and mind and be her own master. The chance of having been born a woman, must not affect her human rights. To exclude woman from equal rights because she has been born a woman and not a man—a fact of which both man and woman are innocent—is as unfair, as to make rights and privileges depend upon religious or political opinion; and it is as irrational as the belief that two persons are innate enemies because, by the chance of birth, they belong to different races or nationalities. Such views are unworthy of a free human being. Progress of humanity consists in removing whatever keeps one human being, one class or one sex in slavery and dependence upon another. No difference is justified except those differences established by nature to fulfill its purpose. But no sex will overstep the natural limits, because it would thereby destroy its own purpose in nature.
[149] Dr. Havelock Ellis.—Man and Woman.
[3.—Differences in Physical and Mental Qualities of Man and Woman.]
One of the chief arguments of the opponents of equal rights is, that woman has a smaller brain than man and is less developed in other respects, and that therefore her lasting inferiority is proven. It is certain that man and woman are two human beings of different sex, that each has different organs adapted to the sexual purpose, and that, owing to the fulfillment of the sexual function, a number of differences in their physiological and psychological conditions exist. These are facts that no one can nor will deny; but they do not furnish any cause for social or political inequality between man and woman. Humanity and society consist of both sexes; both are indispensable to their maintenance and development. Even the greatest man was born by a mother to whom he may owe his best qualities and abilities. By what right, then, can woman be denied equality with man?
According to the opinion of eminent authorities, the most marked differences in physical and mental qualities between man and woman are the following: In regard to stature, Havelock Ellis considers 170 centimeters the average height for men and 160 centimeters for women. According to Vierordt, it is 172 and 160, and in northern Germany, according to Krause, 173 and 163 centimeters. The proportion of man’s stature to woman’s is as 100 to 93. The average weight of adult persons is 65 kilograms for men and 54 for women. The greater length of the trunk in a woman’s body is a well-known difference; yet this difference is not as great as has been generally assumed, as careful measurements have shown. The legs of a woman of medium size are only by 15 millimeters shorter than those of a man of medium size, and Pfitzner doubts that this difference is noticeable. “The differences in the lengths of body and legs are influenced by the stature, and are independent of sex.” But the female arm is decidedly shorter than the male arm (as 100 to 91.5). The male hand is broader and larger than the female hand, and with men the ring-finger is usually longer than the index, while the opposite is the case with women. By this the male hand becomes more ape-like, as the long arm also is a pithecoid (ape-like) characteristic.
In regard to the size of the head, the proportion of the absolute height of male and female heads may be set down as 100 to 94. But the relative sizes (in proportion to the size of the body) are 100 to 100.8. So actually woman’s head is somewhat smaller, but in proportion to the size of her body, it is somewhat larger than man’s. The bones of woman are smaller, finer, and more delicate in form and have a smoother surface, for the weaker muscles require less rough surface to fasten upon. The weaker muscular development is one of the most striking characteristics of woman. Each separate muscle of a woman’s body is finer, softer, and contains more water. (According to v. Bibra the quantity of water contained in the muscles is 72.5 per cent. with man, and 74.4 per cent. with woman.) In regard to the adipose membrane the opposite proportion exists; it is much more amply developed with woman than with man. The chest is relatively shorter and narrower. Other differences are directly connected with the sexual purpose. The statements of various authors in regard to relative and absolute weight of the intestines, are very contradictory. According to Vierordt the proportion of the weight of the heart to the weight of the body is as 1 to 215 with men, and as 1 to 206 with women. According to Clendinning it is as 1 to 158 and as 1 to 149. Taken all in all, we may assume that the female intestines are absolutely smaller, but relatively, in proportion to the weight of the body, heavier than the male.
The blood of women shows a larger percentage of water, a smaller quantity of blood-globules, and a smaller quantity of hemachrome. With woman the smaller size of the heart, the narrower vascular system, and probably also the larger percentage of water in the blood, cause a less intense assimilation of matter and an inferior nutrition. This may also account for the weaker jaws. “It may thus be explained that even civilized man in many respects is more closely connected with the animal world, especially the ape, than woman, that he possesses pithecoid traits which may be seen in the shape of the skull and the length of the limbs.”
In regard to the differences of the skull of both sexes, let it be stated that, according to Bartels, there is no absolute indication whereby we could determine whether a skull belonged to a male or female person. Absolute comparison shows that the skulls of men are larger in all dimensions. Accordingly the weight is greater, too, and the interior space is larger.
As a medium weight of normally developed brains of adult persons, Grosser states 1388 grammes for the man and 1252 grammes for the woman.[150] The great majority of male brains (34 per cent.) weigh between 1250 and 1550 grammes, and the great majority of female brains (91 per cent.) weigh between 1100 and 1450 grammes. But these weights are not subject to direct comparison since woman is smaller than man. It is, accordingly, necessary to determine the weight of the brain in proportion to the body. When we compare the weight of the brain with the weight of the body we find that with the man there are 21.6 grammes of the brain for every kilogram of the weight of the body, and with the woman there are 23.6 grammes. This outweighing is explained by the fact that woman’s stature is smaller.[151]