Ulrichs maintains that the body of an Urning is masculine, his soul feminine, so far as sex is concerned.

Broadly speaking, the male includes two main species: Dioning and Urning, men with normal and men with abnormal instincts.

Up to the present time the Urning has not been considered as a sport of nature in her attempt to differentiate the sexes.

But ought this excess of nervous erethism to be referred necessarily to the peculiar nature of the Urning?