98 



EXrERliAIENT STATION. 



[Jan. 



consecutive tlavs, before feeding in the afternoon, at the begin- 

 ning and end of each half of the experiment. 



Weighing and Sampling the Milk. — The weight of each 

 milking was taken on a spring balance sensitive to 1 onnce, and 

 the weights preserved on prepared record sheets. The milk 

 was samj^led for five consecutive days by the usual method, as 

 described in accounts of the many feeding experiments given in 

 previous reports. It was preserved with bichromate of potash 

 and analyzed by gravimetric methods. 



Character of Feeds. — The feeds used were all of good qual- 

 ity and of average composition. The hay was composed largely 

 of Kentucky blue grass, sweet vernal grass and a liberal admix- 

 ture of clover. 



Dates of the Experiment. 



First Half. 



It will be observed that ten days were allowed for changing 



the feeds given the animals. 



It will be seen that the two rations were practically identi- 

 cal, excepting that 4 pounds of corn meal were substituted for a 

 like amount of gluten feed. Different cows received from 10 

 to 12 pounds of hay and from 20 to 30 pounds of silage. Each 

 animal received exactly the same amount of gi'ain daily. 



