20 



DAIRY ANALYSIS 



After measuring the three liquids, which should 

 float in three distinct layers, with little or no browning 

 at the junction of the acid and milk, insert a cork ; 

 the bottle should be held with the left hand, and the 



FIG. 15. Measuring Milk. 



cork screwed in, not pushed in, with the right ; do not 

 exert too much force or the bottle may break. If there 

 is marked browning the milk has either been run in 

 too fast or has not been run down the side of the 

 bottle, and the experiment is best repeated. 



