If it be said that in hundreds of thousands of cases the child labor law is violated and that therefore school examination is not an index to the poverty or neglect occasioning such child labor, it should be remembered that the best physical test is the child's presence at school. The first step in thorough physical examination is a thorough school census,--the counting of every child of school age. Moreover, a relatively small number of children who violate the child labor law are the only members of the family who ought to be in school. Younger children furnish the index and occasion the visit that should discover the violation of law. Appreciation of health, as well as its neglect, is indexed by the physical condition of school children. Habits of health are the other side of the shield of health rights unprotected. Physical examination will discover what parents are trying to do as well as what they fail to do because of their ignorance, indifference, or poverty. In so far as parents are alive to the importance of health, the school examination furnishes the occasion of enlisting them in crusades to protect the public health and to enforce health rights. The Committee on the Physical Welfare of School Children found many parents unwilling to answer questions as to their own living conditions until told that the answers would make it easier to get better health environment not only for their own children but for their neighbors' children. Generally speaking, fathers and mothers can easily be interested in any kind of campaign in the name of health and in behalf of children. The advantage of starting this health crusade from the most popular American institution, the public school,--the advantage of instituting corrective work through democratic machinery such as the public school,--is incalculable. To any teacher, pastor, civic leader, health official, or taxpayer wanting to take the necessary steps for the removal of conditions prejudicial to health and for the enforcement of health rights of child and adult, the best possible advice is to learn the facts disclosed by the physical examination of your school children. See that those facts are used first for the benefit of the children themselves, secondly for the benefit of the community as a whole. If your school has not yet introduced the thorough physical examination of school children, take steps at once to secure such examination. If necessary, volunteer to test the eyes and the breathing of one class, persuade one or two physicians to cooeperate until you have proved to parent, taxpayer, health official, and teacher that such an examination is both a money-saving, energy-saving step and an act of justice.