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Credit
The life of Sir William Petty, 1623-1687 : one of the first Fellows of the Royal Society, sometime secretary to Henry Cromwell, maker of the 'Down Survey' of Ireland, author of 'Political Arithmetic' &c. : chiefly derived from private documents hitherto unpublished / by Lord Edmond Fitzmaurice. 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.