To make clear by an instance the difference between normal and abnormal sex-distinction, look at the relative condition of a wild cow and a “milch cow,” such as we have made. The wild cow is a female. She has healthy calves, and milk enough for them; and that is all the femininity she needs. Otherwise than that she is bovine rather than feminine. She is a light, strong, swift, sinewy creature, able to run, jump, and fight, if necessary. We, for economic uses, have artificially developed the cow’s capacity for producing milk. She has become a walking milk-machine, bred and tended to that express end, her value measured in quarts. The secretion of milk is a maternal function,—a sex-function. The cow is over-sexed. Turn her loose in natural conditions, and, if she survive the change, she would revert in a very few generations to the plain cow, with her energies used in the general activities of her race, and not all running to milk. Physically, woman belongs to a tall, vigorous, beautiful animal species, capable of great and varied exertion. In every race and time when she has opportunity for racial activity, she developes accordingly, and is no less a woman for being a healthy human creature. In every race and time where she is denied this opportunity,—and few, indeed, have been her years of freedom,—she has developed in the lines of action to which she was confined; and those were always lines of sex-activity. In consequence the body of woman, speaking in the largest generalization, manifests sex-distinction predominantly.