I.

Definition of Auto-erotism--Masturbation only Covers a Small Portion of the Auto-erotic Field--The Importance of this Study, especially To-day--Auto-erotic Phenomena in Animals--Among Savage and Barbaric Races--The Japanese _rin-no-tama_ and other Special Instruments for Obtaining Auto-erotic Gratification--Abuse of the Ordinary Implements and Objects of Daily Life--The Frequency of Hair-pin in the Bladder--The Influence of Horse-exercise and Railway Traveling--The Sewing-machine and the Bicycle--Spontaneous Passive Sexual Excitement--_Delectatio Morosa_--Day-dreaming--_Pollutio_--Sexual Excitement During Sleep--Erotic Dreams--The Analogy of Nocturnal Enuresis--Differences in the Erotic Dreams of Men and Women--The Auto-erotic Phenomena of Sleep in the Hysterical--Their Frequently Painful Character.