why this is so; but much illegitimacy will
be prevented if it can be made widely known among young men and women
that, according to reliable physicians, tragedies of illegitimacy are
often due to misplaced confidence in popular methods of contraception.

[Sidenote: Criminal operations.]

There is yet another line of information that if widely known might
have some bearing on the problem of illicit sexual relations:
Physicians and social workers report that many young men and some women
know the possibility of illegitimate pregnancy, but feel safe because
they know the addresses of doctors and midwives who will perform
criminal operations. The great danger of the operation, especially at
the hands of such third-class doctors as would attempt to terminate
pregnancy criminally, should be widely known by the general public,
which only now and then gets a hint in the newspaper reports of a
tragedy involving some unfortunate girl.

[Sidenote: Relative passion of men and women.]

There is the widespread misunderstanding among young men that sexual
hunger is as insistent in virtuous young women as in themselves and
that therefore illicit gratification is a mutual gain and
responsibility. Some young men may be guided by the information that
there is much reliable evidence indicating that, while an innate
tendency towards general emotions of affection is strong in the average
young woman, there is general absence of the localized passions that
naturally and automatically develop in young men. In other words, the
first definite sexual temptation is likely to come to a young woman
from outside herself, and young men should be impressed with their
responsibility for allowing even the beginning of situations that may
arouse dormant but dangerous instincts.

Sec. 10. _The Fifth Problem for Sex-education: Sexual Morality_

In this lecture I shall set forth the proposition that a definitely
organized scheme of education should aim directly at making young
people strict adherents of the established code of sexual morality. For
brevity, I shall occasionally speak of morality and immorality,
omitting the qualifying word "sexual."

[Sidenote: Definition of sexual morality.]

This lecture, in fact this entire series of lectures on sex-education,
is based on the fundamental proposition that sexual morality demands
that sexual union be restricted to monogamic marriage, and conversely,
that such sexual relation outside of marriage is