REMEDIAL THEORIES AND EXPERIMENTS 217 



effect of the work upon the ordinary milk supply of 

 the city be properly measured. Each year, for edu- 

 cational reasons, a different farm has been selected, so 

 that each year one farmer has had practically two 

 months' personal instruction in milk hygiene. Gradu- 

 ally the farmers are learning the lesson; learning to 

 trust the man who pooh-poohed their smart copper 

 and nickel appliances, their silver-plated centrifugal 

 machines which gathered balls of dung and hair from 

 the milk. They are learning that it is better and more 

 economical to keep their barns and stables clean, to 

 wash the udders of their cows, to see that the milkers 

 are clean; they are learning that when these things 

 are done, and all utensils are perfectly sterilized, less 

 babies die in the city. 



VIII 



There are still some persons who believe that there 

 is no necessity for the establishment of infants' milk 

 depots. Their position is that, bad as conditions un- 

 deniably are, the proper thing to do is to secure a 

 better general milk supply; that the ordinary milk 

 supply of any city can be so improved as to do away 

 with the need of making special provision for infa"nts. 

 The objection seems plausible enough at first, but I 

 have yet to learn of any city, either in this country or 

 abroad, having such a milk supply. There is not in 

 the world, so far as I know, a single city with a milk 



