88 MILK PRODUCTS 
tion conducted at such 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 100 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- 
€ 
G 
Fic. 3. 
zation is attained. If only 100 c.c. of the dis- 
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 
