For many years these studies of the psychology of sex have been available only to physicians, sociologists and the legal profession. There is likely still to be some difference of opinion as to whether or not the time is ripe for the release of this material to general readers. However, the new publisher has purchased the plates of the original edition, has combined the original seven volumes into four handsome books in a nice wooden box, and makes the collection available at an exceedingly low price. The books have been enthusiastically greeted by reviewers in all the leading literary publications of the country. Certainly it is well to have these contributions of a great pioneer in this acceptable form. The volumes include such topics as sexual inversion, eonism, homosexuality, marriage and many similar subjects.