|• Main||• Contacts|
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.
That there are annual seasonal changes in the human organism, especially
connected with the sexual function, is a statement that has been made by
physiologists and others from time to time, and the statement has even
reached the poets, who have frequently declared that spring is the season
Thus, sixty years ago, Laycock, an acute pioneer in the
investigation of the working of the human organism, brought
together (in a chapter on "The Periodic Movements in the
Reproductive Organs of Woman," in his _Nervous Diseases of
Women_, 1840, pp. 61-70) much interesting evidence to show that
the system undergoes changes about the vernal and autumnal
equinoxes, and that these changes are largely sexual.
Edward Smith, also a notable pioneer in this field of human
periodicity, and, indeed, the first to make definite observations
on a number of points bearing on it, sums up, in his remarkable
book, _Health and Disease as Influenced by Daily, Seasonal, and
Other Cyclical Changes in the Human System_ (1861), to the effect
that season is a more powerful influence on the system than
temperature or atmospheric pressure; "in the early and middle
parts of spring every function of the body is in its highest
degree of efficiency," while autumn is "essentially a period of
change from the minimum toward the maximum of vital conditions."
He found that in April and May most carbonic acid is evolved,
there being then a progressive diminution to September, and then
a progressive increase; the respiratory rate also fell from a
maximum in April to a minimum maintained at exactly the same
level throughout August, September, October, and November;
spring was found to be the season of maximum, autumn of minimum,
muscular power; sensibility to tactile and temperature
impressions was also greater in spring.
Kulischer, studying the sexual customs of various human races,
concluded that in primitive times, only at two special
seasons--at spring and in harvest-time--did pairing take place;
and that, when pairing ceased to be strictly confined to these
periods, its symbolical representation was still so confined,
even among the civilized nations of Europe. He further argued
that the physiological impulse was only felt at these periods.
(Kulischer, "Die geschlechtliche Zuchtwahl bei den Menschen in
der Urzeit," _Zeitschrift fuer Ethnologie_, 1876, pp. 152 and
157.) Cohnstein ("Ueber Praedilectionszeiten bei Schwangerschaft,"
_Archiv fuer Gynaekologie_, 1879) also suggested that women
sometimes only conceive at certain periods of the year.
Page 1 from 5:  2 3 4 5 Forward