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Credit
An inaugural dissertation on the Polygala senega, commonly called seneca snake-root : submitted to the examination of the Rev. John Ewing, S.S.T.P., provost, the trustees & medical faculty, of the University of Pennsylvania, on the 22d day of May, 1798, for the degree of Doctor of Medicine / by Isaac Winston, of Virginia ; honorary member of the Philadelphia Medical Society. 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.)