One of the pressing industrial questions of the present generation is the relation of the efficiency of woman labor to wages; and this question has been accentuated by conditions growing out of the Great War. The slogan of organized labor has been "equal wages for equal work," meaning thereby that no distinction should be made between men and women in paying wages for similar work. For a variety of reasons the scale of wages for women has generally been lower than that for men, even when the two groups were doing the same work. Often, however, work appears to be the same when it is not. The mere fact that a man and a woman fill similar industrial positions is no conclusive test of their relative efficiency. One, for example, may need less supervision, or is a more steady worker or has greater ambition to succeed. Such factors as these are important and must be taken into account in any thoroughgoing discussion of the relation of woman labor to wages. We can do nothing more in this connection than to point out the problems.