are about the same in all great cities, except that those of the United States are puritan towns compared with Europe. I have explored the Underworld in many cities of both continents, being temperamentally qualified. But in America's smaller cities west of the meridian of Kansas City, the sexual Underworld is more bold and wields more political power than anywhere else in the United States or Europe.
An Underworld exists in all cities of any size because human nature is what it is, and because of the social usages decreed by the blind Overworld, which happens to include the vast majority of mankind. Man is descended from the beasts, and still retains many of their instincts—particularly true of the atypic or atavic who throng the red-light districts.
As the Medical World said of my Autobiography of an Androgyne, the present work also "will be found a revelation of things undreamed of by most people. It is a contribution to the almost unexplored field of abnormal psychology."
