E-text prepared by Juliet Sutherland
and the Project Gutenberg Online Distributed Proofreading Team
(https://www.pgdp.net)

STUDIES
IN THE
PSYCHOLOGY OF SEX

VOLUME I

THE EVOLUTION OF MODESTY
THE PHENOMENA OF SEXUAL PERIODICITY
AUTO-EROTISM

BY

HAVELOCK ELLIS

THIRD EDITION, REVISED AND ENLARGED

1927