phy of the United States. A series of mono- 

 graphs edited by Powell and others, pp. 65- 

 100. The map is essential. 



12. Semple, E. C. American History and Its Geo- 



graphic Conditions (1903). 

 Influence of Geographic Environment (1911). 



13. Shaler, N. S.The Effect of the Physiography 



of North America Upon Men of European 

 Origin, in Winsor's Narrative and Critical 

 History of the United States, Vol. IV, Intro- 

 duction, pp. x-xxx. Reprinted in Bullock's 

 Selected Readings in Economics (1907), 

 Chapter I. 

 The United States of America, Vol. I (1891), 



Chapters I, II, III, VII, VIII, IX. 

 Nature and Man in America (1891). 

 14-. Shimek, B. The Pioneer and the Forest, in Pro- 

 ceedings of the Mississippi Valley Historical 

 Association, Vol. Ill (1909-1910), pp. 96-105. 



15. Turner, F. J. Is Sectionalism in America Dying 



Away? in The American Journal of Sociology, 

 Vol. XIII, March, 1908, pp. 661-675, 811- 

 819. 



Sectionalism in the United States, in McLaugh- 

 lin and Hart's Cyclopedia of American Gov- 

 ernment (1911), Vol. Ill, pp. 280-285. 



16. Van Hise, C. R. Conservation of Natural Re- 



sources of the United States (1910), pp. 208- 

 211, 268-277. 



17. The Geographical Review. A valuable source 



of information. 



18. Thirteenth Census of the United States, Vol. V, 



Appendix A, pp. 893-900. 



IV. 



INDIAN AGRICULTURE IN AMERICA. 



1. Bruce, P. A. Economic History of Virginia in 

 the Seventeenth Century, Vol. I (1895), Chap- 

 ter III. 



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