Wonders of the Yellowstone Region in the Rocky Mountains: Being a Description of Its Geysers, Hot-springs, Grand Cañon, Waterfalls, Lake, and Surrounding Scenery, Explored in 1870-71

An Oration Describing the Influence of Commerce on the Prosperity, Character & Genius of Nations: Written at the Request of the Society of [Phi Beta Kappa] and Delivered on Their Anniversary, at Cambridge, Sept. 1, 1808

Grammar of the Bornu Or Kanuri Language: With Dialogues, Translations, and Vocabulary