s without being discovered. As soon as the perpetrator of a sadic
crime is discovered, or simply an attempt at sadism, he should be
arrested and placed where he can do no harm. The question of
castration arises here: but we do not know yet how far this protects
the sadist and his victim against recurrence. If this operation proves
efficacious it should never be neglected.

The _exhibitionists_ present great difficulty. They are not dangerous,
since they touch nobody. Their "victims," if they can be called so,
are girls or women before whom they expose their genital organs and
masturbate. No doubt modesty may be much offended by such acts,
especially in young girls and children; disgust and fear may also harm
them; but I think the law is too severe in these cases, for there is
no question of an injury which is dangerous in itself. I have known
little girls who have been frightened several times by exhibitionists,
but I have never known them injured by the disgust which they
experienced. The affair is too ridiculous and too ugly. It would be
sufficient to send exhibitionists to an asylum for short periods,
unless extreme weakness on their part necessitated prolonged
detention.

Simple _necrophilia_ should be treated in the same way by penal law.
But this perversion is more dangerous on account of its relationship
with sadism. There are some sadists who are only necrophiliacs for
fear of becoming assassins. Such individuals are very dangerous and
should be kept in confinement.

The _fetichists_ are, on the contrary, generally very innocent. At the
most they might be prosecuted for theft when they take away their
fetiches. One of their worst misdemeanors is that of cutting off the
hair of young girls.

=Concubinage. Prostitution. Proxenetism. White Slavery.=--We have
already seen that concubinage should never be punishable in itself,
although it is so in some countries. We shall not again return to the
question whether prostitution should be the object of judicial and
penal actions. Proxenetism and white slavery, on the contrary, cause
grave injury to the rights of many individuals and should be made
criminal offenses; for they are crimes against society and the
individual, and committed for lucre. It cannot be legal to do commerce
with the body of one's neighbor: this is a crime which is closely
related to slavery and similar abuses. (Vide Chapter X.)

The law should punish all public solicitation, obscenity or sexua