1. School conditions that injure child health also injure teacher health. 2. Poor health of teacher causes poor health of pupil. 3. Poor health of pupil often causes poor health of teacher. 4. Adequate protection of children requires adequate protection of their teachers. 5. Teachers have a right to health protection for their own sake as well as for their children's sake. Too little concern has hitherto been shown for the vitality of teachers in private or public schools and colleges. Without protest, and without notice until too late, teachers often neglect their own health at home and at school,--recklessly overwork, undersleep, and undernourish; ruin their eyes, their digestion, and their nerves. School-teachers are frequently "sweated" as mercilessly as factory operatives. The time has come to admit that a school environment which destroys the health of the teacher is as unnecessary and reprehensible as an army camp that spreads typhoid among a nation's defenders. A school curriculum or a college tradition that breaks down teachers is as inexcusable as a gun that kills the gunner when discharged. Experience everywhere else proves that periodic physical examinations and health precautions, not essays about "happy teachers--happy pupils," are indispensable if teachers' health rights are to be protected. Physical tests are imposed upon applicants for teachers' licenses by many boards of education. In New York City about three per cent of those examined are excluded for defects of vision, of hearing, of probable endurance. Once a teacher, however, there is no further physical examination,--no way of discovering physical incapacity, nothing to prevent a teacher from exposing class after class to pulmonary tuberculosis contracted because of overwork and underventilation. The certainty of salary increase year by year and of a pension after the twentieth year will bribe many a teacher to overtax her own strength and to jeopardize her pupils' health. Seldom do training schools apply physical tests to students who intend to become teachers. One young girl says that before starting her normal course she is going to the physician of the board of education for examination, so as to avoid the experience of one of her friends, who, after preparing to be a teacher, was rejected because of pulmonary tuberculosis. During her normal course no examination will be necessary. Overwork during the first year may cause pulmonary tuberculosis, and in spite of her foresight she, too, may be rejected four years hence.