4. Coulter, J. L. Industrial History of the Valley 



of the Red River of the North, in Publications 

 of the State Historical Society of North Da- 

 kota, Vol. Ill, pp. 28-115. 



5. Dondlinger, P. T. The Book of Wheat, 1916. 



An economic history and practical manual of 

 the wheat industry. 



6. Edgar, W. C.The Story of a Grain of Wheat, 



1903. 



7. Fite, E. D. Agricultural Development of the 



West during the Civil War, in The Quarterly 

 Journal of Economics, Vol. XX, 1906, pp. 

 259-278. Reprinted in substantially the form 

 as Chapter I in the same author's Social and 

 Industrial Conditions in the North during the 

 Civil War, 1910. 



8. Grinnell, J. B. Sheep on the Prairies, in Annual 



Report of the United States Department of 

 Agriculture, 1862, pp. 300-312. 



9. Harger, C. M.The New Era in the Middle 



West, in Harper's Magazine, Vol. 97, July, 

 1898, pp. 276-282. 



10. Hedrick, W. O. Social and Economic Aspects of 



Michigan History, in Michigan Historical So- 

 ciety Collections, Vol. XXXIX, pp. 327-342. 



11. Hibbard, B. H. History of Agriculture in Dane 



County, Wisconsin. Bulletin of the Univer- 

 sity of Wisconsin, 1904, Part II, Chapters I 

 to VII, inclusive. 



Tenancy in the North Central States, in The 

 Quarterly Journal of Economics, Vol. XXV, 

 1911, pp. 710-729. Reprinted in Carver's 

 Selected Readings in Rural Economics, 1916, 

 pp. 508-522. 



12. Mappin, W. F. Farm Mortgages and the Small 



Farmer, in The Political Science Quarterly, 

 Vol. IV, 1889, pp. 433-451. 



13. Merk, Frederick. The Economic History of 



Wisconsin during the Civil War Decade, in 

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