CASE 13.--Z., twenty-seven years of age, has several times been
prosecuted, on account of his attempts to spy upon women in public
lavatories. It is his custom, when in such a place he can observe the
genital organs of a woman in the act of defaecation, to masturbate. He
states that this tendency was well marked in him at the age of thirteen
years. He believes, indeed, that at this time he was inspired mainly by
curiosity--by a desire to see what the genital organs of a female were
like. But he recalls that when a child, at about the age of eight or
nine years, he experienced sexual stimulation when a girl cousin of six
sat on his face; and he thinks that when only five or six years old he
crawled under the petticoats of a servant girl, in order to lay his face
against her nates. Even as early as this he experienced great pleasure
in the act.

CASE 14.--X., is now twenty years of age. He always experiences sexual
excitement when he thinks of the act of whipping. It is unnecessary for
him to play any active part in this himself; and it is a matter of
indifference to him whether a man beats a woman, a woman beats a man, or
an adult of either sex beats a child. In all cases alike the sight
induces sexual excitement; and the imaginative reproduction of such a
scene is his customary stimulus during masturbation--this being a fairly
frequent occurrence. He traces back to childhood the stimulus exercised
on him by a whipping seen or imagined. When from seven to nine years of
age, he began to find such experiences sexually stimulating; by the age
of ten, he was quite clear as to the existence of this peculiarity in
himself. At this early age he struck himself with a stick, under the
influence of an obscure impulse to arouse voluptuous sensations by means
of the blows; he did this fairly frequently.

As regards his sexual sensibilities in general, he is by no means
indifferent to members of the opposite sex. He gladly seeks social
intercourse with females, and likes to kiss them; but he does not
experience any definite sexual impulse towards them, such as might
culminate in sexual intercourse. Three times he has had actual
intercourse, but on each occasion he has been able to effect erection
and ejaculation only by means of all kinds of artificial stimulation. It
is a noteworthy fact that when he was fifteen or sixteen years of age he
became intimate with the members of a homosexual circle, and only by
considerable effort was