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Credit
An inaugural dissertation, containing an enquiry into the existence of the living principle and causes of animal life : submitted to the examination of the Rev. John Ewing, S.T.P. provost ; the medical professors and trustees of the University of Pennsylvania, for the degree of Doctor of Medicine / by Matthias E. Sawyer, honorary member of the Philadelphia Medical and Chemical societies. Public Domain Mark. Source: Wellcome Collection.
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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.)