STATUS OF PASTEURIZATION OF MILK. 



TABLE 2. Proportion of cittes having pasteurized milk and average per cent of 

 their milk supply ichich VMS pasteurized in 1921. 



For those who are particularly interested in the quantity of milk 

 pasteurized in various cities, Table 3 has been prepared. In it is a 

 list of 266 cities that reported pasteurized milk and the approxi- 

 mate quantity of milk pasteurized. The cities are listed in order of 

 their population given in the 1920 census and include all cities re- 

 porting pasteurization up to the time the table was prepared. It is 

 particularly interesting to note the extent to which milk is 

 pasteurized even in the small cities. 



METHODS OF PASTEURIZATION. 



At present three processes of pasteurization are practiced in this 

 country. The first is known as the flash, or continuous process; the 

 second, the holder, or holding process; and the third is known as 

 pasteurization in the bottle. 



TABLE 3. Approximate quantity of milk pasteurized in various cities as shown 

 by returns from questionnaire sent in 1921. 



