APPENDIX 



247 



The Babcock Milk Test 

 8. The value of a dairy cow may be known from two 

 factors: (1) the amount of milk given and (2) its rich- 

 ness in butter-fat. The amount of milk is determined by 

 weighing, while the butter-fat may be found from the 

 Babcock test. Have some pupil bring a sample of milk 

 taken immediately after the milking is done and after 

 the milk has been poured two or three times from one 

 vessel to another so as to mix it thoroughly. 

 For testing butter-fat you need the following: 

 (a) A Babcock Tester, 



Two or three milk test-bottles, 

 A pipette to measure the milk, 

 A small glass measure for acid, 

 A pint bottle of Sulphuric Acid, 

 Hot water, 

 A few ounces of milk to be tested. 



(b) 

 (c) 

 (d) 

 (e) 

 (f) 

 (g) 



Fig. 123. A Babcock Milk Tester 



[Equipment may be obtained from a. pl.\nagan company, Chicago. 

 Four Bottle Milk Tester, $5.00. Four Bottle Milk and Cream Tester, 

 $5.50. Weight boxed, 10 lbs. Transportation charges additional.] 



