We have come across so much rubbish on this subject that we drifted into the conclusion that an honest sex essay for young folks would not be produced by this generation.
THE SEX SIDE OF LIFE FIRST APPEARED IN THE Medical Review of Reviews FOR FEBRUARY, 1918. THE FOLLOWING IS QUOTED FROM THE EDITOR'S FOREWORD.
It's available for free online here.Introduction
In not a single one of all the books for young people that I have thus far read has there been the frank, unashamed declaration that the climax of sex emotion is an unsurpassed joy, something which rightly belongs to every normal human being, a joy to be proudly and serenely experienced. Instead there has been all too evident an inference that sex emotion is a thing to be ashamed of, that yielding to it is indulgence which must be curbed as much as possible, that all thought and understanding of it must be rigorously postponed, at any rate till after marriage. [...]We have not yet said that it is only beautiful sex relations that can make marriage lovely.