DAIRYING in 



EXAMINATION 



Note to Students These questions are to be answered inde- 

 pendently. Never consult the text after beginning your exam- 

 ination. Use thin white paper about 6 in. x 9 in. for the exam- 

 ination. Number the answers the same as the questions, but 

 never repeat the question. Mail answers promptly when com- 

 pleted. 



1. In what way may milk become a dangerous food? 



2. About how much milk is used for making cheese each 

 year in the United States? 



3. About how many pounds of dirt is consumed per year 

 per man by the milk consumers of Chicago? 



4. How does the condition of the milk supply indicate the 

 state of civilization of a community? 



5. About how many germs or bacteria in one drop of com- 

 mon, sweet milk? 



6. What is the usual standard of city ordinances in regard 

 to the bacteria content of milk? 



7. What general names may be given to the bacteria in 

 milk, and how many kinds have been found therein? 



