This book represents the first systematic study of the certification of lunacy in the British Empire. Considering a variety of legal, archival, and published sources, it traces the origins and dissemination of a peculiar method for determining mental unsoundness defined as the ‘Victorian system’. Shaped by the dynamics surrounding the clandestine committal of wealthy Londoners in private madhouses, this system featured three distinctive tenets: standardized forms, independent medical examinations, and written facts of insanity. Despite their complexity, Victorian certificates achieved a...