ANALYSES OF MAIZE. 197 



affected by the time occupied in washing. It shows, however, that the cob is not by any 

 means destitute of value ; and that the practice of many farmers, of grinding the cob with 

 the corn for feeding stock, is the most economical way of disposing of it. There is still 

 another reason for the practice, namely, to increase the bulk of the food ; for it is unsafe 

 to feed concentrated nourishment to herbivorous animals. They require a bulky food, 

 for the purpose of effecting a moderate distension of the alimentary canal ; and hence if 

 the cob was less nutritive than is here represented, it would still be the proper plan to be 

 pursued in feeding cattle or horses, though not so necessary to the latter as to the former. 

 It will be observed particularly that the nitrogenous compounds amount to 2-58, and 

 the gum, sugar, extract and oil, to 9-46; and if the 86 per centum of insoluble matter 

 had been subjected to the action of fluids equal in solvent power to the gastric juice, this 

 would still have been diminished some four or five per centum. 



12. Analysis of the leaves of Pennsylvania Dent com. 



Per centum. 



Silica 9-900 49-500 



Phosphates 3-300 16-500 



Lime 1-297 6-485 



Magnesia 0-360 1-800 



Potash 3-360 16-800 



Soda 0-350 1-750 



Sulphuric acid - - - - - - 0-822 4-510 



Chlorine 0-463 2-315 



19-852 99-660 



13. Analysis of the stalk of a variety mixed with the Tuscarora, White-flint and Sweet com: 

 cut August 11. 



Slight efferrescence of the ash with acids*. 



Silica 



Phosphates of lime, magnesia and iron 

 Carbonate of lime ..... 

 Magnesia ....... 



Potash 



Soda 



Sulphuric acid ...... 



Chlorine ....... 



Organic matter and carbonic acid 



19-772 99-994 



* This variety, before ripening, was supposed to be the Pennsylvania Dent. It has the red cob of the Tuscarora, and 

 about i of the kernels were of this kind. 



