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Credit
On the estimation of the sanitary condition of communities, and the comparative salubrity of towns : being an address delivered at a meeting of the Society of Medical Officers of Health, October 17, 1874 / by Henry Letheby. Public Domain Mark. Source: Wellcome Collection.
Provider
This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.