28, for September, for all the years taken together.
There appears also a slight rise in April, and another in
November, with a fall in December." The frequency varies in the
different individuals. There was no tendency to a monthly cycle.
In the best case, the minimum number for the year was
thirty-seven, and the maximum, fifty. Fifty-nine per cent. of all
were at an interval of a week or less; forty per cent. at an
interval of from one to four days; thirty-four per cent, at an
interval of from eight to seventeen days, the longest being
forty-two days. Poor condition, overwork, and undersleep, led to
infrequency. Early morning was the most common time. Normally
there was a sense of distinct relief, but in low conditions, or
with over-frequency, depression. (G.S. Hall, _Adolescence_, vol.
i, p. 453.) I may add that an anonymous article on "Nocturnal
Emissions" (_American Journal of Psychology_, Jan., 1904) is
evidently a fuller presentation of the first of Stanley Hall's
three cases. It is the history of a healthy, unmarried, chaste
man, who kept a record of his nocturnal emissions (and their
accompanying dreams) from the age of thirty to thirty-eight. In
what American State he lived is not mentioned. He was ignorant of
the existence of any previous records. The yearly average was 37
to 50, remaining fairly constant; the monthly average was 3.
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