7s.6d.net (by post, 8s.

1d.).
This fills a gap in the literature of sex.

It gathers together for the general reader a vast array of facts about sex, mating and reproduction which have never before been so clearly and directly stated.
"For a simple statement, expressed in language as far as possible free from technicalities, of the principal phenomena of generation, Dr.
Herbert's book is the best that we have seen."-- _Cambridge Review._ "It is therefore a real satisfaction to find a sex manual which may be placed with confidence in the hands of any educated person....

He has certainly produced the best little manual which we yet possess in this field."-- HAVELOCK ELLIS in _Eugenics Review._ * * * * * BY MRS.

HERBERT.
SEX LORE.