CYRIL GEORGE HOPKINS 



1900 Composition and Digestibility of Corn Fodder and Corn Stover. ///. 



Agr. Exp. Sta. Bui. 58. 



1901 The Elements of Fertility Taken from the Soil by a Crop of Corn, and 



How to Restore Them. Rpt. III. farmer? Intl., vol. 6, p. 83. 

 Methods of Standardizing Acid Solutions. Journ. Amer. Chem. Soc., 

 vol. 23, p. 727. 



1902 Alfalfa on Illinois Soil. ///. Agr. Exp. Sta. Bui. 76. 

 Methods of Corn Breeding. ///. Agr. Exp. Sta. Bui. 82. 

 Instructions for Growing Sugar Beets. ///. Agr. Exp. Sta. Circ. 52. 

 Report of Committee on Soil Investigations and Experiments. Rpt. III. 



Farmers' Inst., vol. 7, p. 128. 

 Separation of Alkalies in Soil Analysis by the Official Method. Proc. 



18th Ann. Con. of A. O. A. C., 1901, U. S. Dept. Agr., Div. Chem. 



Bui. 67, p. 43. 

 Method for Taking Samples of Soils for Analysis. Proc. 18th Ann. 



Con. of A. O. A. C., 1901, U. S. Dept. Agr., Div. Chem. Bui. 67, 



p. 152. 

 Fixation of Atmospheric Nitrogen by Alfalfa on Ordinary Prairie Soils 



under Various Treatments. Journ. Amer. Chem. Soc., vol. 24, 



p. 1155. 



1903 The Structure of the Corn Kernel and the Composition of its Different 



Parts. (With Louie H. Smith and Edward M. East) ///. Agr. 

 Exp. Sta. Bui. 87. 



Soil Treatment for Wheat in Rotation, with Special Reference to South- 

 ern Illinois Soils. ///. Agr. Exp. Sta. Bui. 88. 



Sugar Beet Investigations in Illinois Report of Progress. (With L. H. 

 Smith) ///. Agr. Exp. Sta. Circ. 62. 



Investigation of Illinois Soils Report of Progress. ///. Agr. Exp. Sta. 



Circ. 64. 

 Corn Experiments in Illinois Report of Progress. (With Louie H. 



Smith and Archibald D. Shamel) ///. Agr. Exp. Sta. Circ. 66. 



Methods of Maintaining the Productive Capacity of Illinois Soils. ///. 

 Agr. Exp. Sta. Circ. 68. Also Report III. Farmers' Inst., vol. 8, 

 p. 119. 



Infected Alfalfa Soil. ///. Agr. Exp. Sta. Circ. 70. 



Present Status of Soil Investigation. ///. Agr. Exp. Sta. Circ. 72. Also 

 Proc. 17th Ann. Con. Amer. Agr. Colleges and Experiment Sta- 

 tions, V. S. D. A., Office of Exp. Sta. Bui. 142, p. 95. 



Methods of Corn Breeding. Proc. 16th Ann. Con. Amer. Agr. Colleges 

 and Experiment Stations, U. S. D. A., Office of Exp. Sta. Bui. 

 123, p. 91. 



A Quantitative Method for Determining the Acidity of Soils. (With 

 W. H. Knox and J. H. Pettit) Proc. 19th Ann. Con. of A. O. A. C., 

 1902, U. S. Dept. Agr., Div. Chem. Bui. 73, p. 114. 



The Chemical Composition of Different Parts of the Corn Kernel. 

 (With L. H. Smith and E. M. East) Journ. Amer. Chem. Soc., 

 vol. 25, p. 1166. 



