112 PEOCEEDINGS OF THE AMERICAN ACADEMY 



nothing done to it, except warming it slightly, so as to take the chill 

 off. 



In this connection, I think I am justified in saying that no one cow's 

 milk. is as uniform in composition as the milk of a herd of cows, and 

 that, if a uniform diet is wished for a child, it will be much better 

 secured by mixing the milk of a number of cows, than when it is 

 attempted by trying to secure the milk of a single cow. Since, as we 

 see, the milk of any one of the cows taken varies very considerably. 



Boston, Dec. 7, 1876. 



