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). 

 InfiUence 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, J'ol. I (1894), 



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

 Nature and Man in America (1891). 

 11. Shimck, 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. — 7* 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 ^IcLaugh- 

 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. 



26 



