( .)2 A New Dairy Industry. 



recent investigations have, however, refuted this 

 assumption. It has been found that, apart from the 

 first fortnight, the milk from one and the same wet- 

 nurse did not materially change during the entire 

 nursing period. Soxlilct, Heubner and others recom- 

 mend to follow the example set by nature and to 

 prepare the normal milk to one unvarying standard, 

 and experience has proved this to be correct. A 

 most valuable feature is the steady increase in weight 

 of infants that take normal milk. Professor Esche- 

 rich has published the results of his investigations in 

 this line ; from them I take one example : 



Week of Life. 



23d ... 



24th . . . 



25th . . . 



26th . . . 



27th . . . 



28th . . . 



29th . . . 



30th . . . 



This infant, when receiving normal milk for the 

 first time, weighed 5,075 grammes, while the normal 

 weight of a babe twenty-three weeks old has been 

 found, by Camerer, to average 0,132 grammes. The 

 infant was, therefore, lighter by 457 grammes than a 

 normal infant. Now, the average advance in weight 

 of an infant between the twenty-third and thirtieth 

 week has been ascertained at 719 grammes, for such 



