HASLAM (John). Observations on Madness and Melancholy: Including Practical Remarks on those Diseases; Together with Cases: and an Account of the Morbid Appearances on Dissection.1809

London: Printed for J. Callow... by G. Hayden, Second edition, considerably enlarged, 8vo (215 x 130 mm), vii, [1], 345, [1]pp., text woodcut of Haslam's 'Key', foxing to prelims and final few pages, title page browned, blank inner upper corner of title torn away, front hinge weak, cont. half calf, rubbed. "Haslam considered the enlarged second edition... to be his magnum opus; it remained a standard work for several years. This edition includes an illustration of Haslam's infamous "key," an instrument used to force patients' mouths open to receive food, medicine, etc.; the key was intended as an improvement to earlier methods of artificial feeding, as it preserved the patients' teeth."—Hook & Norman. Hook & Norman, Haskell F. Norman Library I, 1015; Hunter & Macalpine, pp. 632-636; Wellcome III, p. 221; Garrison-Morton, 4794 (first edition).