be proclaimed by
means as effective as the "tin-plate" signs for disorderly houses.

9. Reliable investigations should be made further to reveal the
relationships between sexual immorality and venereal diseases, on the one
hand, and, on the other hand, between sexual immorality and ignorance, low
wages, injurious clothing, lack of wholesome amusements, low dance-halls,
grills, moving-picture houses, vaudeville shows and so-called legitimate
theaters, mental deficiency, armies and navies, and--most important of
all--the liquor traffic; and the outcome of such investigations should be
made known through persistent campaigns of public education.

10. The conclusions of every vice commission and of every other dependable
investigation--not the details--must be kept before the public, until the
truth is common knowledge that segregation never segregates; that
safeguarding clinics never safeguard; that medical control never controls;
that official protection of immorality increases immorality; and that, if
there be any such thing as a necessary evil, it is not the shameless
partnership of government and vice.[65]

III. MATERIALS

1. Elementary nature-study for children and biological study for boys and
girls of high-school age may lead gradually and safely to the teaching of
plant and animal reproduction, provided that the subject is not left on
the plane of animal life; it is a mistake to suppose that the teaching of
biology necessarily promotes right conduct in matters of sex.

2. Subordinate and incidental to instruction in normal sex processes,
warning should be given of the dangers of individual vice, illicit sexual
intercourse, and venereal diseases; but such instruction should be given
only to groups that are homogeneous in respect to sex, physiological age,
and social environment, or preferably, to individuals.[66]

3. Instruction concerning venereal disease, which leaves the impression
that the chief danger of illicit intercourse is "getting caught," should
not be tolerated: knowledge of facts though scientifically accurate, is
not necessarily protection to the individual or to society.

4. As sex instruction for young people has none but practical aims,
hygienic and moral, only such knowledge concerning sex processes,
reproduction, and diseases should be given at each period as is necessary
for the welfare of the individual at that period.

5. The practice of masturbation is sufficiently common among both