16 AGRICULTURAL EXPERIMENT STATION. [Jan. 



1. History of Cows. 



The cows thus far used in all our feeding experiments for 

 the production of milk have been grades of more or less 

 uncertain parentage. We secure them usually on the con- 

 dition that they are new milch cows, from one to two weeks 

 after calving when bought, and of fair milking quality, 

 yielding from fifteen to sixteen quarts per day at this time. 

 They serve usually in the trials until their daily yield of 

 milk becomes unprofitable, from five to six quarts, when 

 they are replaced by new milch cows. 



2. Description of Fodder Articles. 

 The general character and chemical composition of the 

 different fodder ingredients used in the preparation of the 

 daily diet may be seen from the following statement : — 



