[Robert Hamilton of Ipswich, Irish army physician and medical author.] Autograph Letter Signed ('R: Hamilton') to Sir Charles Brian Blagden, Secretary, Royal Society, praising that body in regard to a 'trifling performance' presented to its library.

1p, 4to. Bifolium. In good condition, lightly aged, with thin strip from mount adhering to reverse of second leaf, which is addressed, with broken seal in red wax, to 'Dr. Blagden | Secry. to the | Royal Society | London'. After thanking Blagden for the trouble he has taken 'in transmitting the thanks of the R: Socy. To me for the trifling performance I sent to the Library', Hamilton continues: 'I consider myself as honoured by its reception. Allow me, Sir, to wish all prosperity to this learned Society by whose labours Science in all its branches is extended, and mankind benefited.' 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'.