5. No community should introduce direct sex education into the schools as a part of the curriculum, until it has informed parents, cultivated favorable public opinion, and obtained the services of teachers who are qualified for the work by nature and by special preparation. 6. All normal schools and all college departments of education should at once embody, in their courses for teachers, instruction in the matter and methods of sex education, and adequate instruction should be provided for teachers now in service; and within a reasonable time after such opportunities have been offered in a given State, certificates to teach in that State should be granted only to those who have had the prescribed preparation. 7. As there is not now a sufficient number of public school teachers prepared to teach sex hygiene, such teaching must be done in part, at least for many years, by private agencies. 8. Lectures should be arranged for parents by churches, schools, colleges, clubs, granges, boards of health, and other organizations; but no one should be accepted as a lecturer until he is approved by a board of health, social hygiene society, college, or other organization which is unquestionably competent to pass judgment on the qualifications of the speaker. 9. Since there are adults in every community that will not be reached, even when sex education becomes a part of the day-school curriculum, such instruction should be offered in continuation schools, in social settlements, in Young Men's Christian Associations, in college extension courses, in factories, stores, lumber-camps, car-shops,--indeed, wherever the happy connection can be made between those who need the help and those who are surely qualified to give help.[63] II. METHODS 1. Sex instruction as a rule should not be isolated; it should not be prominent; it should be an integral part of courses in biology, hygiene, and ethics. "Specialists" in sex education are undesirable as teachers of boys and girls, in or out of school. 2. As there is a discrepancy between the age of puberty and the age of marriage, due to artificial conditions of modern society, it is important that sex consciousness and sex curiosity should develop slowly: accordingly, sex instruction, unlike instruction in other subjects, must seek to satisfy rather than to stimulate interest in the subject; questions must be answered truthfully, but the answers must not lead the curiosity of the child beyond the information that is immediately necessary for the guidance of his own conduct. 3. The aims of sex education can be fully attained only by the encouragement of every means for keeping the mind occupied throughout waking hours with wholesome thoughts and the body sufficiently active in vigorous work and play, preferably out of doors.