1. An essay on the medicinal properties and deleterious qualities of arsenic: submitted to the examination of the Rev. John Ewing, S.S.T.P. provost ; the trustees and medical faculty of the University of Pennsylvania, on the seventeenth day of May, 1796, for the degree of Doctor of Medicine Author(s): Potter, Nathaniel, 1770-1843 Publication: Philadelphia : Printed by William W. Woodward, no. 17, Chesnut-Street, 1796 Subject(s): Arsenic