DAIRY LABORATORY GUIDE 



49 



The cream test is read from the bottom of the top menis- 

 cus to the bottom of the fat column, as indicated by Nos. 3 

 and 2, Fig. 8, page 50. 



Data: 



Application: 1. How much butter-fat will be obtained 

 in one year from a cow giving 5000 pounds of milk testing as 

 above? 



2. What will be the cash value of the butter-fat at cur- 

 rent prices per pound? 



3. What will be the loss due to error in testing? 



4. Why pour the sample back and forth before taking the 

 sample to test? 



5. What is the correct method of holding the pipette? 



6. Why is the Babcock test based upon 18 grams? 



7. Why use 17.6 c. c. of milk for the test? 



8. Why whirl the tester at high speed? 



Student's Notes: 



