... that in the majority of these cases there exists a congenitally abnormal condition of the sexual instinct, these individuals from their childhood manifesting a perverted sexual instinct. The man is physically a man, but psychically a woman, and vice versa. The tendency nowadays is not to charge these people with the more serious offence, but to deal with them under Section 11 of the Criminal Law Amendment Act, 1885 (48 and 49 Vict., ... — Aids to Forensic Medicine and Toxicology • W. G. Aitchison Robertson