196 



CLEAN MILK 



duplicates of each sample of, milk), and the machine is rotated at 

 full speed for five minutes. Then the machine is stopped and boil- 

 ing soft water is added to the contents of each bottle, by means of: 

 the pipette or otherwise, till the contents of the bottle rise to the; 



Fig- 58. 



Pipette for making the Shows method of introducing milk into Babcockr 

 Babcock test. bottle with pipette in making the fat test. 



lower end of the neck of the bottle. The machine is whirled at full 

 speed again for two minutes. More boiling water is then added 

 to the contents of each bottle by pipette until the fat rises in the- 

 neck to the 8 or 9 mark. The machine is once more turned oner 



