Conclusion. 



159 



price which common good cow's milk is obtaining at 

 retail, and by the average amount of prosperity of the 

 place. In a majority of cases the normal milk may 

 be manufactured and sold at an advance of from fifty 

 to seventy-five per cent, on the retail price of cow's 

 milk, althoiigh, in many instances, double the price 

 of ordinary milk is obtained. It seems needless to 

 dwell on the necessity of a liberal supply of water for 

 the uses of the normal dairy, the cleaning of the bot- 

 tles alone requiring a considerable quantity. Where 

 cool spring water cannot be counted upon all the 

 year round, ice must be brought into requisition. 

 This will always be a necessity in warmer climates, 

 and it is just in these that the amelioration of exist- 

 ing conditions for the production of a healthy infants' 

 milk is the most urgent. 





Fig. 27— COMBINED BRUSH AND RINSER. 



Short courses of practical instruction will be or- 

 ganized, as purely theoretical instruction has proved 



