This book is by far the best history of geology available. It begins with the Greeks and ends with continental drift and plate tectonics. Gabriel Gohau also looks at the early theories of the formation of the world and then moves to philosophical debates over mountains, fossils, the Flood, volcanoes, and cycles of earth history that preoccupied the geologists and biologists of the late eighteenth and nineteenth century. After discussing the late nineteenth-century consolidation of theories about the mechanisms of changes in the earth, he concludes with an account of twentieth century geology's scientific revolution.