Autograph Letter Signed, to Dr.Norris at Queens College, thanking him for his ‘Work on the Blood’ and looking forward to reading it with great interest. 1 page 7 x 4.5 inches, fine. 59 Bristol Road [Birmingham], 6 December 1871. John Postgate (1820-81), campaigner against the adulteration of food. Dr.Richard Norris, author of medical works including The Physiology and Pathology of the Blood….With mikro-photographic illustrations, London 1882.