198 



CITY MILK SUPPLY 



the other milk. The next morning the bottles were placed in an ice 

 box and bacteria samples were plated from them. Table 61 gives the 

 results of the experiment. The average temperature of the milk at the 

 farms was higher than the average temperature of the milk after 5 hr. 

 transportation and 1J^ hr. in the ice tanks of the dealer. The average 

 temperature of the milk in the bottles, when placed in the ice box at 

 7:00 next morning, was 14F. higher than when it left the tanks of the 

 dealer. The increase in bacteria between the dealer and consumer was 

 six times as great as the increase between the farm and the dealer's 

 tanks. 



TABLE 61. BACTERIAL INCREASE THAT OCCURS IN MILK BETWEEN DAIRY FARM 



AND MILK PLANT AS COMPARED WITH THAT WHICH OCCURS BETWEEN 



MILK PLANT AND CONSUMER (GAMBLE) 



In some of the important cities of the country, as for instance Rich- 

 mond, Va., practically all of the milk is hauled by wagon into the city; 

 in others like Chicago and Cleveland none of the milk is handled in this 

 way. Between these extremes are Milwaukee which so receives 40 

 per cent., New Orleans 35 per cent., Detroit 17 per cent., Baltimore 17 

 per cent., Boston 9 per cent., Philadelphia 4 per cent., Indianapolis 4 

 per cent, and New York 1 per cent. 



Use of Auto Truck in Hauling Milk from Farm to City. The auto 

 truck is being used more and more in bringing milk from outlying farms 



