Note 3 — Introduction
Reading edition
For detailed discussion of this theory, see The Economic Interpretation of History, by E. R. A. Seligman. Also, History of Civilization in England, by H. T. Buckle, Vol. I, Chapter II, Influence Exercised by Physical Laws over Organization of Society and the Character of Individuals. This chapter is reprinted in Sociology and Social Progress, by T. N. Carver.