. 



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? 



