for a knowledge of these matters for themselves. This is shown by
the frequency of articles that deal with sex in many of the best
newspapers and magazines in the civilized world, and by similar
discussions in the literature, the works and scientific books that now
go into the hands of the common people. It also shows in the attempts
that are occasionally being made to introduce the subject of sexual
hygiene into our public schools and other educational institutions.
"The world do move!"

It is for these reasons--because it is right to transfer to you and to
those who come after, the sex knowledge that has been acquired by the
author, by reading scientific and professional literature upon the
subject, by conference with men and women who know, and by personal
and professional experience, that what follows is written.




III

THE CORRECT MENTAL ATTITUDE


So much by way of general remarks regarding the subject in hand. It
is more the especial purpose of what follows, however, to treat of the
matter of marriage in particular, _to say something definite to young
husbands and wives that shall be of real benefit to them_, not only by
way of starting them out right in the new and untried way upon which
they have entered, but to help them to make that way a realm
of perpetual and ever increasing joy to both parties concerned,