MILK AND ITS PRODUCTS 



139 



\ 



Fig.34.- 



Acid me as* 



ure. 



E. Pipette. This holds 17.6 c.c., as shown 

 in Fig. 33. Since about .1 c.c. of milk will 

 adhere to the inside of the pipette it is ex- 

 pected to deliver only 17.5 c.c., which is equiva- 

 lent to 1 8 grams of normal milk. 



F. Acid Measures. In making a Babcock 

 test equal quantities, by volume, of acid and 

 milk are used. The acid measure, shown in 



Fig. 34, holds 17.5 c.c. of acid, the amount needed for one 

 test. The one shown in Fig. 35 is divided into six divisions, 

 each of which holds 17.5 c.c. or one charge of acid. Where 



Fig. 33. Pi- 

 pette. 



