Insanity.- Ray (Isaac) A Treatise on the Medical Jurisprudence of Insanity, first English edition, half-title, occasional light finger-soiling, very light browning to margins, ex-Birmingham Law Society with circular ink-stamp to title and occasionally elsewhere, ownership name of G.M. Gliffard and small library sticker and references to pastedown, original cloth, largely unopened, gilt-stamped with "Birmingham Law Society" to upper cover and spine foot, head of spine repaired, corners bumped with some wear, little rubbed, [Garrison-Morton 1739], 8vo, G. Henderson, 1839.

⁂ "First modern treatise on the medico-legal aspects of insanity" (Garrison-Morton). Both this edition and the first edition, published in Boston the year previously, are scarce. Ray was an American psychiatrist and one of the founders of the discipline of forensic psychiatry. His work exerted a considerable influence on English and American medical jurisprudence, particularly in the famous M'Naghten trial of 1843 at the Old Bailey, which prompted the establishment of the M'Naghten Rules, a legal test for criminal responsibility in cases of insanity.