- An American in Iceland: An Account of Its Scenery, People and History; With a Description of Its Millennial Celebration in August, 1874; With Notes on the Orkney, Shetland, and Faroe Islands, and the
- The Subsidence Theory Of Earthquakes .....
- The Wonders of the Yosemite Valley, and of California
- The Natural History of the Human Species
- The Annual of Scientific Discovery: or, Year-Book of Facts in Science and Art