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Credit
Abstract of the answers and returns made pursuant to an act, passed in the first year of the reign of His Majesty King George IV, intituled, "An act for taking an account of the population of Great Britain, and of the increase or diminution thereof" : M. DCCC. XXI [1821]. Public Domain Mark. Source: Wellcome Collection.
Provider
This material has been provided by Royal College of Physicians, London. The original may be consulted at Royal College of Physicians, London.