63 



preparatory feeding. The first period extended from 

 January 1 to 28, 1901, the second from February 5 to 

 March 1 inclusive. 



Lot 1 consisted of two cows, and Lot II of three cows. 

 The different number of cows in the two lots does not 

 affect the accuracy of the results, for at the conclusion 

 of the first period the rations were reversed, thus mak- 

 ing each cow at different times during the experiment 

 <:onsume both rations. 



The cows employed were as follows: 



Amount, kind, and cost of food eaten. 



