34 A DAIRY LABORATORY GUIDE 



reading. Note any change in the lactometer 

 reading, and explain the reasons for this 

 change. 

 4- Take the Quevenne reading of a sample of 

 skimmed milk. 



Compute what the reading would be if the tem- 

 perature were four degrees higher. Verify 

 your results by warming the sample and tak- 

 ing the reading. Be sure to mix the sample 

 thoroughly after warming it. Have the tem- 

 perature of the milk low enough so that rais- 

 ing the temperature four degrees will not 

 bring the sample above 70° F. Why should 

 not the temperature be above 70° F. ? 



What is the chief advantage of the Quevenne 

 lactometer over other kinds? 



