COMPOSITION AND DIGESTIBILITY. 155 



Jenkins and Winton,* from which the figures 

 in the foregoing table, representing averages, 

 are given. These represent per cents in fresh 

 or air-dry material. 



Mr. Clifford Richardson, as Assistant Chemist 

 of the United States Department of Agricul- 

 ture, made a special study of the chemical com- 

 position of American cereals.f As based upon 

 over 200 analyses of corn from different parts 

 of America, he says: "Corn may be said, there- 

 fore, without doubt, to be very constant in its 

 composition within narrow limits." The fol- 

 lowing figures are taken from Richardson's re- 

 port, the average results of 202 analyses made 

 in 1882 and 1883, showing per cent in the grain 

 of the substances specified: 



Ash 1.55 per cent. 



Albuminoids 10.39 per cent. 



Nitrogen 1.66 per cent. 



Composition of mill products.— The com- 

 position of the mill products of Indian corn is 

 shown in the following figures, which are aver- 

 ages taken from Jenkins' and Winton's tables, 

 previously referred to: 



* A Compilation of Analyses of American Feeding Stuffs, 

 by E. H. Jenkins, Ph. D., and A. L. Winton, PK B., United 

 States Department of Agriculture, OflBce of Experiment Sta- 

 tions. Experiment Station Bulletin No. 11, 1892, p. 155. 



t An Investigation of the Composition of American Wheat 

 and Corn, by Cliflford Richardson, Department of Agricul- 

 ture, Chemical Division. Bulletin No. 1, p. 69; Bulletin No. 

 4, p. 98; Bulletin No. 9, p. 82, Washington, 1883, 1884, 1886. 



