is so far undetermined that many a real male has passed a portion of his
life under a mistake, has worn female clothes, and has cohabited by
preference with men. Likewise, in respect of spiritual nature, there
appear males who, notwithstanding their marked masculine organisation,
feel from the earliest childhood a sexual proclivity toward men, with a
corresponding indifference for women. In some of these abnormal, but
natural, beings, the appetite for men resembles the normal appetite of
men for women; in others it resembles the normal appetite of women for
men. That is to say, some prefer effeminate males, dressed in feminine
clothes and addicted to female occupations. Others prefer powerful
adults of an ultra-masculine stamp. A third class manifest their
predilection for healthy young men in the bloom of adolescence, between
nineteen and twenty. The attitude of such persons towards women also
varies. In genuine cases of inborn sexual inversion a positive horror is
felt when the woman has to be carnally known; and this horror is of the
same sort as that which normal men experience when they think of
cohabitation with a male.[55] In others the disinclination does not
amount to repugnance; but the abnormal man finds considerable difficulty
in stimulating himself to the sexual act with females, and derives a
very imperfect satisfaction from the same. A certain type of man, in the
last place, seems to be indifferent, desiring males at one time and
females at another.

In order to gain clearness in his exposition, Ulrichs has invented names
for these several species. The so-called hermaphrodite he dismisses with
the German designation of _Zwitter_. Imperfect individuals of this type
are not to be considered, because it is well known that the male or
female organs are never developed in one and the same body. It is also,
as we shall presently discover, an essential part of his theory to
regard the problem of inversion psychologically.

The normal man he calls _Dioning_, the abnormal man _Urning_. Among
Urnings, those who prefer effeminate males are christened by the name of
_Mannling_; those who prefer powerful and masculine adults receive the
name of _Weibling_; the Urning who cares for adolescents is styled a
_Zwischen-Urning_. Men who seemed to be indifferently attracted by both
sexes, he calls _Uranodioninge_. A genuine Dioning, who, from lack of
women, or under the influence of special circumstances, consorts with
per