1. 1. J. O. M. Broek, and John W. Webb , A Geography of Mankind (New York: McGraw-Hill,1968 ), p.6 . 1 wish to thank my colleague, P. W. Porter, for planting some of the ideas in my head; he is of course not responsible for their wayward efflorescence.
2. 4. I have developed this theme at length in The Hydrologic Cycle and the Wisdom of God (Toronto: University of Toronto Press, 1968) .
3. 5. Claude Levi-Strauss, The Savage Mind (London: Weidenfeld and Nicolson, 1966), pp. 4-8, 154 .