So many of our girls are “nervous.” A bright, interesting eighth grade teacher told me recently that she had fifty girls in her class and that according to their mothers forty-one were “very nervous.” It seemed to her a large proportion even for girls in their early teens, and she began a quiet study of some of them. One of the “very nervous” girls who, her mother thought, must be taken out of school for a while, takes both piano and violin lessons, attends dancing school, goes to parties now and then, and rarely retires before ten o’clock. Another “very nervous” girl takes piano lessons, goes to the moving picture shows once or twice a week, hates milk, can’t eat eggs, doesn’t care much for fruit, and is extremely fond of candy. In each case investigated there seemed to be much outside of school work which could explain the “nervousness.” It is most interesting to note the gain, physically, made by almost every girl in her teens who enters a good boarding-school, where plenty of exercise, a cheerful atmosphere, regular hours and wholesome food is the rule. Just how much the Sunday-school teacher who is a real friend of the girl in her teens can help is a question, but I know of enough cases where an earnest interview with the father or mother has resulted in better care of the growing girl, with more attention paid to her food and rest, to make me sure that it pays to attempt to help. If it only means that the girl in her teens shall not go to school or to work without breakfast, it pays. I can almost hear some troubled teacher ask, “Where in the Sunday-school hour is there time for this?” It can not be done in a Sunday-school hour except incidentally. But those who are at work with girls in their teens must teach more than a lesson on Sunday. They are teaching _girls_ to _live_, if they have entered whole-heartedly into the work. Every girl in her teens is interested in her physical self. The ways in which she strives to satisfy her curiosity and desire for knowledge are often pitiful, often to be deplored. From my experience I am convinced that anything which tends to center her interest upon the physical is unwise. For this reason I very much doubt the advisability of class instruction, except in general matters of hygiene. What the whole class is interested in they will discuss. It will be the main topic of conversation among “chums” as they separate after class, and the effect I am convinced is bad, simply because it centers thought upon a subject which to the girl in her teens should not be the chief interest. Then, too, the individuals in a class vary so much that the instruction to be given needs special wisdom, tact and comprehensive knowledge of girls which not every teacher possesses.