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Credit
The influence of civic life, sedentary habits, and intellectual refinement, on human health, and human happiness : including an estimate of the balance of enjoyment and suffering in the different gradations of society / by James Johnson, Esq. surgeon to His Royal Highness the Duke of Clarence. Public Domain Mark. Source: Wellcome Collection.
Provider
This material has been provided by the National Library of Medicine (U.S.), through the Medical Heritage Library. The original may be consulted at the National Library of Medicine (U.S.)