Whether the hours of study at school and at home are excessive cannot be learned from treatises on pedagogics or physiology. Because children differ in vitality as in ability to learn, the maximum limit for study hours should be determined by the individual child's physical condition. When the Japanese went to war with Russia the highest authority in the field was the army surgeon. To this fact was largely due the astonishingly small amount of sickness and the high fighting capacity and endurance of the Japanese, working under unfavorable conditions. No board of school superintendents or board of directors, no state superintendent of schools or college professor, has the right to compel or to allow study hours beyond the maximum compatible with the individual student's physical condition and endurance. The physician responsible for school hygiene should have an absolute veto upon any educational policy, method, or environment demonstrably detrimental to children's vitality. 6. _Establishment of a "follow-up" plan to insure action by parents to correct physical defects and to attend to physical needs._ The advantages of _getting things done_ over _doing things_ have been repeatedly emphasized. In smaller cities and in rural districts it is particularly important for schools to get things done better by existing local agencies, such as churches, health and street-cleaning departments, hospitals, clinics, medical and sanitary societies, trade unions, young people's societies, and women's clubs. Where parents who have been followed up and taught, obstinately or ignorantly refuse to attend to their children's needs, the segregation of the physically defective or needy will encourage the cooeperation of children themselves in persuading parents to act intelligently for the child's sake. No child wants to remain "queer" or "dopey" or behind his peers. The city superintendent of schools for New York City has asked for laws compelling parents to permit operations and punishing them for neglecting to take steps, within their power, to remove physical defects discovered at school. [Illustration: TEACHING A MOTHER TO CARE FOR ONE CHILD INSURES BETTER CARE FOR ALL HER CHILDREN]