_A Talk with Boys About Themselves_ and _A Talk with Girls About Themselves_, both by Edward Bruce Kirk (the latter book written in conjunction with a lady) deal with general as well as sexual hygiene.

There could be no better book to put into the hands of a boy or girl at puberty than M.A.

Warren's _Almost Fourteen_, written by an American school teacher in 1892.
It was a most charming and delicately written book, which could not have offended the innocence of the most sensitive maiden.
Nothing, however, is sacred to prurience, and it was easy for the prurient to capture the law and obtain (in 1897) legal condemnation of this book as "obscene." Anything which sexually excites a prurient mind is, it is true, "obscene" for that mind, for, as Mr.Theodore Schroeder remarks, obscenity is "the contribution of the reading mind," but we need such books as this in order to diminish the number of prurient minds, and the condemnation of so entirely admirable a book makes, not for morality, but for immorality.

I am told that the book was subsequently issued anew with most of its best portions omitted, and it is stated by Schroeder (_Liberty of Speech and Press Essential to Purity Propaganda_, p.

34) that the author was compelled to resign his position as a public school principal.
Maria Lischnewska's _Geschlechtliche Belehrung der Kinder_ (reprinted from _Mutterschutz_, 1905, Heft 4 and 5) is a most admirable and thorough discussion of the whole question of sexual education, though the writer is more interested in the teacher's share in this question than in the mother's.