88 



MILK PRODUCTS 



tion conducted at ^uch a rate that the above 

 amount of distillate is collected in thirty minutes. 

 The distillate is usually clear; if not, it should 

 be thoroughly mixed, filtered through a dry 

 filter, and loo c.c. of the filtrate taken. A little 

 of the indicator is added to the distillate, and the 

 standard alkali run in from a buret until neutrali- 



FiG. 3. 



zation is attained. If only 100 c.c. of the,«disT_ 

 tillate have been used for the titration, the c.c. 

 of alkali used should be increased by one-tenth. 

 The distilling apparatus shown in figure 3 is 

 that recommended by the A. O. A. C. (and since 

 adopted in Great Britain), and the directions for 



