United States North Pacific Exploring Expedition Search this
Chronology of Smithsonian History
Annual Report of the Smithsonian Institution for the year 1855, p. 42
Annual Report of the Smithsonian Institution for the year 1856, p. 48-54
During 1855 and 1856 specimens continue to be added to the museum's collection, primarily from: the surveys of the U.S.-Mexico boundary and the Pacific railroad route; the North Pacific Exploring Expedition under Captain Ringgold; the expedition to the Parana and its tributaries under Captain Page; the California coastal exploration headed by Lieutenant Trowbridge; exploration of the Missouri and Yellowstone rivers, under Lieut. G. K. Warren, accompanied by Dr. F. V. Hayden as geologist and naturalist (1856); and various other U.S. Army expeditions.