TABLE OF CONTENTS 



I 

 The Composition of Milk i 



n 



Explanation. The Babcock Test s 



III 



Explanation of Boiled Milk Test and Formalde- 

 hyde Test i8 



IV 



Explanation. Mixing Samples of Butter Be- 

 fore Testing for Fat and Moisture 19 



V 

 Explanation. The C. U. Butter Moisture Test 23 



VI 



Explanation. The Specific Gravity of Milk and 



the Lactometer 27 



VII 

 Explanation. The Board of Health Lactometer 37 



V 



