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An account of the epidemical catarrhal fever, commonly called the influenza; : as it appeared in the city and environs of Durham, in the month of June, 1782. To which is prefixed, A discourse on the improvement of medical knowledge. / By P. Dugud Leslie, M.D. F.R.S. With a letter to the author, on the influenza; as it appeared at Newcastle upon Tyne. By John Clark, M.D. Public Domain Mark. Source: Wellcome Collection.