[Sir Andrew Halliday, personal physician to William IV.] Autograph Letter Signed ('Andrew Halliday') to the 'Assignees of Mr George Underwood', regarding the return of works which are his 'individual property'.

1p, 8vo. In fair condition, lightly aged, with a few small holes, and thin strip of paper from mount adhering to the blank reverse. Reads: 'The Assignees of Mr George Underwood will please deliver up to Messrs Renshaw & Reid all the Copies of my “State of Lunatic Asylums” also all copies of my “Letter to Lord Robert Seymour” as also Any Copies of “Letters from Germany & Holland” or any other of my works that may remain or be found among the stock of the said George Underwood as the whole are my individual Property - | Andrew Halliday | Hampton Court | 31 August 1831'. Underwood is listed in BBTI under Thomas Underwood, with whom he traded in medical books in the Strand between 1817 and his bankruptcy in 1831. From the distinguished autograph collection of the psychiatrist Richard Alfred Hunter (1923-1981), whose collection of 7000 works relating to psychiatry is now in Cambridge University Library. Hunter and his mother Ida Macalpine had a particular interest in the illness of King George III, and their book 'George III and the Mad Business' (1969) suggested the diagnosis of porphyria popularised by Alan Bennett in his play 'The Madness of George III'.