MILK 



at a known rate, and the volume of sediment directly read off in 

 the graduated narrow end. The results are doubled and re- 

 turned as volume of sediment per 100 c.c. of milk. 



COM 



15 C. 



*/8 Natural Size 



2 /3 Natural Size 

 Fig. ir. 



= Glass tube holding a litre of milk. C=Tube for measuring sediment. 



2? = Rubber tubing connecting A and C. 



At the side is represented a brass rod, with rubber stopper attached, for 

 plugging the lower end of tube A, when C is taken off. 



Tube C is shown by the side, natural size. It is graduated in 

 and ths of a c.c. 



E. Determination of Acidity. 



The acidity of milk is estimated by titrating 20, 50 c.c., or 

 other definite quantity, of the milk with ^ sodium hydrate, 

 phenolphthalein being used as the indicator. The titration 



