218 THE CHBMISTBY OP THE FAKM 



(2) Oxen with Nitrogenous Diet. 



(3) Oows Fed on Mangels, and on Lucernb Hat. 



shown by the two experiments with cows. The dif- 

 ference appears chiefly in the urine, which is largely 

 increased in quantity by the mangels. 



The richness of the urine, both in ash constituents 

 and nitrogen, is, in all cases, very evident. In the case 

 of the more highly-fed oxen, the dry matter of the 

 urine is seen to contain over 20 per cent, of nitrogen. 



