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
- Dunglison, Robley, 1798-1869
American Philosophical Society.
- Philadelphia : Printed for the American Philosophical Society by J. C. Clark, 1844
Du Ponceau, Peter Stephen, 1760-1844.
- Gibbs, George, 1815-1873
- Washington : Smithsonian Institution, 
- Indians, North American -- ethnology
Data Collection -- methods