In the decade-and-a-half since I coedited Transsexualism and Sex Reassignment (Green & Money, 1969), remarkable changes have occurred with Harry Ben jamin's "transsexual phenomenon" (1966). Formerly, when writing about this condition in scientific journals, it was necessary to define the term transsex ualism. Now the lay public recognizes it. Even the American Psychiatric Asso ciation acknowledges it as a "disorder," with its inclusion in the Third Edition of its Diagnostic and Statistical Manual (1980). Although this "elevation" to the status of mental illness may seem a Pyrrhic victory, it...