Probably no one movement has been so powerful as this in convincing educators of the efficiency of trained women as factors in sanitary progress. In no other direction is the outlook for social service greater. The woman must, however, be more than a willing worker; she must be educated in science as a foundation for sanitary work. Within the next few years the demand for trained women is sure far to exceed the supply, for the fundamental sciences are not to be acquired in one or two years. Young college women are even now realizing their mistake in neglecting the sciences. They assumed that science was not of practical use. They assumed that educational curricula were stable and would go on in the same lines forever. The high school is now fully awake to these vital factors. Some of the best buildings in the United States are the high school buildings, those of the West excelling those of the East. By 1911 nearly every school will have a course in Sanitary Science. It may be under the name of Home Economics, or of Camp Cookery, or of House Building, but the idea of better physical environment has already taken root. In the extension of school work by the employment of the school visitor to supplement the work of the teacher in the grade schools, in Parents’ Associations, in Mothers’ Clubs, in social endeavors on every side, there is coming the study of more special branches of sanitary science, clean air, clean floors, clean clothes--where once cooking lessons were the extent to which the workers could lead. Evolution has at last been accepted as applying to man as well as to animals. In his inaugural address, November, 1909, President H. J. Waters, of Kansas Agricultural College, said: “... for every dollar that goes into the fitting of a show herd of cattle or hogs, or into experiments in feeding domestic animals, there should be a like sum available for fundamental research in feeding men for the greatest efficiency.... We have millions for research in the realm of domestic animals and nothing for the application of science to the rearing of children.” Evidence is not wanting that all this is to be speedily changed. Man has awakened to the fact that he is “the sickest beast alive” and that he has himself to blame, and, moreover, that it is within his power to change his condition and that speedily. After all, human life and effort are governed largely by the conscious or unconscious value put upon the varied elements that go to make up the daily round. It seems to be a universal law that effort must precede satisfaction, from the infant feeding to the man building up a successful business. The satisfaction grows in a measure as the effort was a prolonged or sustained one. Well-being is a product of effort and resulting satisfaction. The child without interest in work or play does not develop; the man with no stimulus walks through life as in a dream.