Up to this time the relation of man to woman was the natural development of a relation calculated to secure the best results for the species. His predacious disposition had been, in part at least, developed in the service of woman and her child, and he was emotionally dependent on her to such a degree that he used all the arts of attraction at his command to secure a relation with her. In the course of time, however, an important change took place in environmental conditions. While woman had been doing the general work and had developed the beginnings of many industries, man had become a specialist along another line. His occupation had been almost exclusively the pursuit of animals or conflict with his neighbors; and in this connection he had become the inventor of weapons and traps, and in addition had learned the value of acting in concert with his companions. But a hunting life cannot last forever; and when large game began to be exhausted, man found himself forced to abandon his destructive and predacious activities, and adopt the settled occupations of woman. To these he brought all the inventive technique and capacity for organized action which he had developed in his hunting and fighting life, with the result that he became the master of woman in a new sense. Not suddenly, but in the course of time, he usurped her primacy in the industrial pursuits, and through his organization of industry and the application of invention to the industrial processes became a creator of wealth on a scale before unknown. Gradually also he began to rely not altogether on ornament, exploits, and trophies to get the attention and favor of woman. When she was reduced to a condition of dependence on his activity, wooing became a less formidable matter; he purchased her from her male kindred, and took her to his own group, where she was easier to control.