In 1846, Edwards, an American naturalist and author of "Butterflies of North America" headed for the Amazon. He made it back and published one of the first adventures about anacondas, piranhas, electric eels, and army ants, as well as the richness of the jungle and peculiarities of the native societies. This very book inspired Bates and Wallace to go to the Amazon the following year.
William Henry Edwards was an American businessman and entomologist. He was an industrial pioneer in the coalfields of West Virginia, opening some of the earliest mines in the southern part of the state. He was also a prominent naturalist specializing in the study of butterflies. He wrote The Butterflies of North America, a three-volume treatise that is highly regarded for its scholarship and the quality of its illustrations.