54 Effective Farming 



McCall, A. G., Studies of Soils. Wiley and Sons. 



Mosier, J. G., and Gustafson, A. F., Soil Physics and Management. 



J. B. Lippincott Co. 

 Whitson, A. R., and Walster, H. L., Soils and Soil Fertility. Webb 



Publishing Co. 



Hunt, T. F., and Burkett, C. W., Soils and Crops. Orange Judd Co. 

 Massey, W. F., Practical Farming. A. C. McClurg & Co. 

 Voorhees, Edward B., Principles of Agriculture. Silver, Burdett and 



Company. 

 U. S. Department of Agriculture. Bureau of Plant Industry Circular 



94, The Mangum Terrace and its Relation to Efficient Farm 



Management. 

 U. S. Department of Agriculture Bulletin 512, Prevention of the 



Erosion of Farm Lands by Terracing. 

 Farmers' Bulletin 524, Tile Drainage on the Farm. 

 Farmers' Bulletin 761, Management of Muck Land Farms. 



