Let it be repeated that sex instruction should be undertaken with great tact and thoughtfulness. The one who gives the instruction--whether parent or teacher--should post himself thoroughly and he should be practical, go slow, not forcing the lad's development by unnecessary knowledge, avoiding gush and sentiment. He should not seek confession or allow the boy to confess to him, for confession will raise a barrier between the two later on; he should help the boy without invading the lad's innermost life, his soul; he should learn that there are recesses in the boy's self that are his own and that bear no invasion, and he should respect this right of privacy. BIBLIOGRAPHY ON SEX Alexander, Editor.--Sunday School and the Teens. (Chapter 14.) This is the official utterance of the Commission on Adolescence, authorized by the International Sunday School Association in convention at San Francisco, and contains a complete, classified bibliography. ($1.00.) _American Youth_ (April, 1913. This entire magazine number deals with Sex Education) (.20). XVI THE TEEN BOY AND MISSIONS No more difficult subject faces the Sunday school today than that of really vitally interesting the teen age boy in the missionary enterprises of the church. Missionary enthusiasts, here and there, have doubtless had success in interesting numbers of boys, but, in spite of this, the average, red-blooded, everyday, wide-awake fellow that inhabits our homes, fills our streets, and honors our Sunday schools, has little or no conception of missions, or even cares enough to make any effort to discover what missions really signify. To the average boy missions spell heathen and a collection and little more. There is no real life interest, or even contact enough to develop an interest in the subject. This is a Hunt, harsh analysis of the situation, but it is both honest and true. Giving money is not a genuine criterion of interest. I have known lots of boys who contributed two cents a week to help the other fellow, not because it was a conviction, but because it was a necessary thing to keep in good standing on the posted bulletin, and thus to maintain the regard and esteem of leader and comrades. Business men and social leaders have been known to hesitate in subscribing to funds until the subscription list had been perused by them, when the list of names already secured has caused them to make generous additions to the fund. The Sunday school offering is a poor index of Sunday school enthusiasm. Giving money--even more than one can afford to give--is not always real self-sacrifice. Sometimes it is self-saving. At any rate, it is not the reliable guide of a boy's interest.