In this groundbreaking study, Edward Irenaeus Prime-Stevenson, under the pseudonym Xavier Mayne, provides a defense of homosexuality in society. Rejecting the binary of masculine and feminine, he offers his theory of intersexes, identifying gay and lesbian men and women as indisputable proof. The Intersexes: A History of Similisexualism as a Problem in Social Life is a book by Edward Irenaeus Prime-Stevenson.