Physiological Periodicity of Seminal Emissions during Sleep--Original
Observations--Fortnightly and Weekly Rhythms.

III.

The Annual Sexual Rhythm--In Animals--In Man--Tendency of the Sexual
Impulse to become Heightened in Spring and Autumn--The Prevalence of
Seasonal Erotic Festivals--The Feast of Fools--The Easter and Midsummer
Bonfires--The Seasonal Variations in Birthrate--The Causes of those
Variations--The Typical Conception-rate Curve for Europe--The Seasonal
Periodicity of Seminal Emissions During Sleep--Original
Observations--Spring and Autumn the Chief Periods of Involuntary Sexual
Excitement--The Seasonal Periodicity of Rapes--Of Outbreaks among
Prisoners--The Seasonal Curves of Insanity and Suicide--The Growth of
Children According to Season--The Annual Curve of Bread-consumption in
Prisons--Seasonal Periodicity of Scarlet Fever--The Underlying Causes of
these Seasonal Phenomena.


AUTO-EROTISM: A STUDY OF THE SPONTANEOUS MANIFESTATIONS OF THE SEXUAL
IMPULSE.

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