The present work is the English version of a part of one of the volumes in the author's massive series of clinical studies bearing the generic title, Disorders of the Instincts and Emotions and covering the whole range of the so-called Parapathic Maladies. The translation represents approximately one-half of the Homosexualität of the volume entitled Onanie und Homosexualität, and bearing the sub-title, Die Homosexuelle Neurose. The balance of the Homosexual Neurosis and the author's clinical study of Autoerotism are also translated and will appear shortly.