THE BABCOCK TEST 



also a special form of acid-measure. The pipette and 

 acid-measure are one-half the usual size. The milk and 

 acid are run into the bottle very easily, and the bot- 



FIG. 28 



AUTOMATIC "RUSSIAN" PIPETTE 



FIG. 28a 

 "RUSSIAN" TEST-BOTTLE 



ties are filled with hot water automatically while the 

 machine is in motion, the tester also being of a special 

 form. 



The Gerber Butyrometer, Special forms of tes- 

 ter, test-bottle, etc., are used. The test uses 1 1 cc. of 

 milk, 10 cc. of sulphuric acid (1.825 specific gravity), 



