ter familiarity with those
organs; but, though it occurs occasionally, it can scarcely be
said to be the rule in erotic dreams. Even men who have never had
connection with a woman, are quite commonly aware of the presence
of a woman's sexual organs in their erotic dreams.

Moll's comparison of nocturnal emissions of semen with nocturnal
incontinence of urine suggests an interesting resemblance, and at
the same time seeming contrast. In both cases we are concerned
with viscera which, when overfilled or unduly irritable,
spasmodically eject their contents during sleep. There is a
further resemblance which usually becomes clear when, as
occasionally happens, nocturnal incontinence of urine persists on
to late childhood or adolescence: both phenomena are frequently
accompanied by vivid dreams of appropriate character. (See e.g.
Ries, "Ueber Enuresis Nocturna," _Monatsschrift fuer
Harnkrankheiten und Sexuelle Hygiene_, 1904; A.P. Buchan, nearly
a century ago, pointed out the psychic element in the
experiences of young persons who wetted the bed, _Venus sine
Concubitu_, 1816, p. 47.) Thus, in one case known to me, a child
of seven, who occasionally wetted the bed, usually dreamed at the
same time that she wanted to make water, and was out of doors,
running to find a suitable spot, which she at last found, and, on
awaking, discovered that she had wetted the bed; fifteen years
later she still sometimes had similar dreams, which caused her
much alarm until, when thoroughly awake, she realized that no
accident had happened; these later dreams were not the result of
any actual strong desire to urinate. In another case with which I
am acquainted, a little girl of eight, after mental excitement or
indigestible meals, occasionally wetted the bed, dreaming that
she was frightened by some one running after her, and wetted
herself in consequence, after the manner of the Ganymede in the
eagle's clutch, as depicted by Rembrandt. These two cases, it may
be noted, belong to two quite different types. In the first case,
the full bladder suggests to imagination the appropriate actions
for relief, and the bladder actually accepts the imaginative
solution offered; it is, according to Fiorani's phrase,
"somnambulism of the bladder." In the other case, there is no
such somnambulism, but a psychic and