1895.] PUBLIC DOCUMENT — No. 33. 37 



In case of cows Nettie, Jennie and Gem the percentage 

 of solids and fat remained very constant during the three 

 periods, while the solids and fat of the milk of cows Julia, 

 Nora and Nellie show a decrease in the last two periods. 

 This decrease can only be explained on the ground that the 

 change of feed interfered for a time with the process of 

 secretion. Towards the end of each period it is noted that 

 the composition of the milk of two of three cows approached 

 that of the first period again. Cows Nora and Nellie 

 seemed for quite a while to produce milk of a varying fat 

 content. 



