The U.S. naval astronomical expedition to the southern hemisphere, during the years 1849, 1850, 1851, 1852. Volume I, Chile: Its geography, climate, earthquakes, social condition, mineral and agricultural resources, commerce, &c., &c. Volume II, The Andes and Pampas, minerals, indian remains, mammals, birds, reptiles, fishes,, and crustacea, shells, dried plants, living plants and seeds, fossil mammals, fossil shells