When man began to feed and defend woman, she ceased proportionately to teed and defend herself. When he stood between her and her physical environment, she ceased proportionately to feel the influence of that environment and respond to it. When he became her immediate and all-important environment, she began proportionately to respond to this new influence and to be modified accordingly. In a free state, speed was of as great advantage to the female as to the male, both in enabling her to catch prey and in preventing her from being caught by enemies; but, in her new condition, speed was a disadvantage. She was not allowed to do the catching, and it profited her to be caught by her new master. Free creatures, getting their own food and maintaining their own lives, develope an active capacity for attaining their ends. Parasitic creatures, whose living is obtained by the exertions of others, develope powers of absorption and of tenacity,—the powers by which they profit most. The human female was cut off from the direct action of natural selection, that mighty force which heretofore had acted on male and female alike with inexorable and beneficial effect, developing strength, developing skill, developing endurance, developing courage,—in a word, developing species. She now met the influence of natural selection acting indirectly through the male, and developing, of course, the faculties required to secure and obtain a hold on him. Needless to state that these faculties were those of sex-attraction, the one power that has made him cheerfully maintain, in what luxury he could, the being in whom he delighted. For many, many centuries she had no other hold, no other assurance of being fed. The young girl had a prospective value, and was maintained for what should follow; but the old woman, in more primitive times, had but a poor hold on life. She who could best please her lord was the favorite slave or favorite wife, and she obtained the best economic conditions. With the growth of civilization, we have gradually crystallized into law the visible necessity for feeding the helpless female; and even old women are maintained by their male relatives with a comfortable assurance. But to this day—save, indeed, for the increasing army of women wage-earners, who are changing the face of the world by their steady advance toward economic independence—the personal profit of women bears but too close a relation to their power to win and hold the other sex. From the odalisque with the most bracelets to the débutante with the most bouquets, the relation still holds good,—woman’s economic profit comes through the power of sex-attraction.