When boys and girls go for work certificates to Dr. Goler, medical officer of health at Rochester, he requires not merely evidence of age and of schooling, but examines their eyes for defective vision and for disease, their teeth for cavities and unhealthy gums, and their noses and throats for adenoids and enlarged tonsils. If a boy has sixteen decayed teeth, Dr. Goler explains to him that teeth are meant to be not only ornaments and conveniences, but money getters as well. The boy learns that decayed teeth breed disease, contaminate food, interfere with digestion, make him a disagreeable companion and a less efficient worker. If he will go and have them put into proper condition he will enjoy life better and earn good wages sooner. After the teeth are attended to the boy secures his work certificate. If the boy's mother protests in tears or in anger that her boy does not work with his teeth, she learns what she never learned at school, that sound teeth help pay the rent. If a girl applicant for working papers has adenoids, she is asked to look in the mirror and to notice how her lips fail to meet, how the lower jaw drops, how much better she looks with her jaws and lips together. She is told that other people breathe through the nose, and that perhaps the reason she dislikes school and does not feel as she used to about play is that she cannot breathe through her nose as she used to. She is shown that her nose is stopped up by a spongy substance, as big as the end of her little finger, which obstruction can be easily removed. She is shown adenoids and enlarged tonsils that have been removed from some other girl, and is so impressed with the before-operation and after-operation contrast and by the story of the other girl's rapid increase in wages, that she and her mother both decide not to wait for the adenoids to disappear by absorption. After the operation they come back with proof that the trouble is gone, and get the "papers." Similar instruction is given when defects of vision seriously interfere with a child's prospects of getting ahead in his work, or when evidence of incipient tuberculosis makes it criminal to put a child in a store or factory. [Illustration: THE GRENFELL ASSOCIATION FINDS MOUTH BREATHERS AT WORK IN LABRADOR] No law as yet authorizes the health officer of Rochester to refuse work certificates to children physically unfit to become wage earners. A higher law than that which any legislature can pass or revoke, has given Dr. Goler power over children and parents, namely, interest in children and knowledge of the industrial handicap that results from physical defects. This higher law authorizes every health officer in the United States to examine the school child before issuing a work certificate, to tell the child and his parents what defects need to be removed, for what trades he is physically unfitted, what trades will not increase his physical weakness, and to what trade he is physically adapted.