From the text... 'It is often assumed that the American Indian was incapable of greatly modifying his environment and that he would not have been much interested in doing so if he did have the capabilities. In fact, he possessed both the tool and the will to use it. That tool was fire. But even more than a wonderful instrument, without which most Indian economics would have collapsed, fire was a presence. To the tribes of the eastern United States it was known as Our Grandfather Fire.' ©1982 by Princeton University Press.