The Journals of the Lewis & Clark Expedition, June 10-September 26, 1806/a Project of the Center for Great Plains Studies, University of Nebraska-Lin (JOURNALS OF THE LEWIS AND CLARK EXPEDITION)
The Journals of the Lewis & Clark Expedition: The Journals of John Ordway, May 14, 1804-September 23, 1806, and Charles Floyd, May 14-August 18, 1804 (JOURNALS OF THE LEWIS AND CLARK EXPEDITION)
Crucial American elections;: Symposium presented at the autumn general meeting of the American Philosophical Society, November 10, 1972 (Memoirs of the American Philosophical Society)
Astronomical Papyri from Oxyrhynchus (vol. I and II): Memoirs, American Philosophical Society (vol. 233) (Memoirs of the American Philosophical Society)