An inaugural dissertation on the Prunus virginiana, commonly known in the United States by the name of wild cherry-tree: submitted to the examination of the Rev. John Ewing ..., the Trustees & Medical Faculty of the University of Pennsylvania, on the twenty-seventh day of May, 1802, for the degree of Doctor of Medicine

An inaugural dissertation on the Prunus virginiana, commonly known in the United States by the name of wild cherry-tree: submitted to the examination of the Rev. John Ewing ..., the Trustees & Medical Faculty of the University of Pennsylvania, on the twenty-seventh day of May, 1802, for the degree of Doctor of Medicine