and their equally unreasoning indulgence towards the other sex. As we indicated above, not only is the sense of esprit de corps entirely absent among modern men as regards their own sex, while strongly present in modern women, but this negative characteristic has become positive on the other side. Thus the modern sex problem presents us with a reversal of the ordinary sociological law of the solidarity of those possessing common interests.
It remains to consider the psychological explanation of this fact. Why should men so conspicuously prefer the interests of women before those of their own sex? That this is the case with modern man the history of the legislation of the last fifty years shows, and the undoubted fact may be found further illustrated in the newspaper reports of well-nigh every trial, whether at civil or criminal law, quite apart from the ordinary "chivalric" acts of men in the detail of social life. This question of sex, therefore, as before said, forms the solitary exception to the general law of the esprit de corps of those possessing common characteristics and interests. It cannot be adequately explained by a reference to the evolution of sex functions and relations from primitive man onwards, since it is at least in the extreme form we see it to-day, a comparatively recent social phenomenon. The theory of the sacrosanctity of women by virtue of their sex, quite
