Recognized since its initial publication in 1926 as a watershed in American historiography, Avery Odelle Craven's study of soil depletion in Virginia and Maryland links elements of Frederick Jackson Turner's frontier thesis, causal aspects of the expansion of slavery, and the economics of staple-crop production into a unified view of southern history from the colonial era to the onset of the Civil War. In this volume Craven initiates a discussion that has changed the way historians view the relationship between historical events and the physical environment. Using Maryland and Virginia as a...