1. A public discourse in commemoration of Peter S. Du Ponceau, LL. D., late president of the American Philosophical Society: delivered before the Society pursuant to appointment, on the 25th of October, 1844 Author(s): Dunglison, Robley, 1798-1869 Publication: Philadelphia : Printed for the American Philosophical Society by J. C. Clark, 1844 Subject(s): LinguisticsLawyersDu Ponceau, Peter Stephen, 1760-1844.