So far as young children are concerned, the needed instruction is so general in character that the sex of the competent teacher is of little importance, but the information that ought to prepare for and guide through the mazes of adolescent youth should come to young people from teachers of the same sex. If exceptions must be made rather than omit instruction altogether, some very mature women may safely guide both boys and girls through adolescence; but men, even physicians, should not undertake instruction of adolescent young women, unless parents and other mature people are present to help with attitude. That women may well instruct boys I know, because the most impressive sex lecture I ever heard was given by the late Dr. Mary Wood-Allen to the boys of the freshman class when I was a college student. But note that I have said "some very mature women." The fact is that I fear danger for some boys if they are frankly instructed by attractive young women who are only ten to fifteen years older than their pupils. Hence, I urge great caution if there must be any exceptions to the general rule that teachers and pupils should be of the same sex.

Coeducational classes.

I realize the difficulty of applying this rule in many high schools where the foundations of sex-education are well laid on the biological basis. There is no reason why the biological studies should not be coeducational through nature-study and biology as far as the development of frogs and birds and, in a general way, of mammals. In fact, both of my textbooks, the "Applied Biology" and the "Introduction to Biology," which emphasize reproduction of organisms more than other high-school books, have been used throughout in coeducational classes. However, these books stop where the problems of human life begin and should be supplemented by lessons for sex-limited classes. There are writers who suggest that segregation of the sexes for teaching concerning human life may be at present a necessity because complete frankness on sexual questions is certainly obstructed by tradition; but we must not ignore the deep social reasons why, in general, there must be maintained a certain amount of reserve between the sexes in the consideration of some important problems of life. No educational theory or practice can possibly alter the fundamental physical or psychical relations of the sexes which nature seems to have fixed immutably.

Married women as teachers.

One other point that deserves attention in this connection is the common statement that only married women, preferably mothers, can be competent instructors of young women. This strikes me as more than absurd. Personal experience is not always necessary for teaching in any line. The greatest medical teachers have not had the diseases they describe so clearly. The best elementary teachers and specialists on the care of children are not always mothers; on the contrary, some of these are men. The fact is that these teachers have learned, not from personal experience, but from the great accumulations of scientific knowledge of medicine, hygiene, and education. There is an abundance of such knowledge relating to sex that may be clearly understood by bright women who have no bi-personal knowledge of sex. Therefore, I believe that it is nonsense to insist that only women with complete sexual experiences can be efficient guides for other women.

§ 19. The Child's First Teachers of Sex-knowledge

Mothers and other first teachers.

The first instruction which may begin to lay the foundation for the individual's sex-education should be given in early childhood by parents, or by other adults, who happen to be on the most intimate personal terms with the child. Usually this means the mother; but there are numerous cases of teachers, governesses, grandmothers, and even fathers who have greater personal influence with certain children than their mothers have. The essential point is that the child should be instructed only by an adult who can exert the greatest personal influence.

Mothers and adolescent boys.

Many parents who believe in sex-education for their children hold that the mothers should give all necessary hygienic guidance and teach the elementary facts of life to the children of both sexes in the pre-adolescent years, but that with the dawn of adolescence the girls should continue to be instructed by their mothers, while the boys should be guided by their fathers. So far as girls are concerned, this seems to be a fairly good plan; but nine times out of ten it is not best for the boys for several reasons: First, the sudden change of attitude on the part of the mother will surely impress upon the boy that there is something about sex in boys that even his mother dares not talk over with him. At about this same time when the mother begins to avoid the sex question with her boy, he will surely begin to get vulgar information and impressions from his boy companions. He will in all probability begin to hear the impure and obscene stories and vulgar language that are so common among many men and boys, and he will be sure to learn that the vulgarity which he hears must not be repeated in the presence of his mother and sisters. It is a most critical time in the mental attitude of the boy. His mother has so far been directing him towards purity and then suddenly sets him adrift. If there is ever a time in a boy's life when he needs intimacy with his mother, it is in the early adolescent years of twelve to fourteen. A strong mother's heart to heart guidance at that time will influence the boy more than all the sex-education which the schools and colleges combined can ever hope to offer. Such is the problem of home teaching for adolescent boys. I emphatically protest against the foolish and even dangerous idea that because a boy is beginning to metamorphose into a man his mother should cease to help him with the problems of sex. Lucky is that adolescent boy whose mother realizes her duty and her opportunity and holds him as intimately as if he were a girl of corresponding age.