174 



FARM SEPARATORS 



and the express charges will be heavier than if the thicker cream 

 were skimmed. Rich cream does not sour so rapidly as does thin 

 cream. 



The richness of cream can be readily ascertained by the use of 

 a Babcock test, which every farmer should have in his possession. 

 A whole outfit for testing fat in cream or milk can be had for 

 about $10.00 from any creamery supply-house. By the use of 

 such a test, the farmer can test his cream and skim-milk. He 

 can also test the milk of each individual cow in the herd, thereby 

 ascertaining which ones are profitable. By the use of such a test 

 on the farm, the farmer can test his cream daily, and compare 



FIG. 57. Tread-power attached to United States hand separator. 



results with those from the creamery, thereby enabling him to 

 detect any mistake which may happen at the creamery. 



Power for Farm Separators. Hand-power is often men- 

 tioned as an objection to farm separators. When a considerable 

 quantity of milk is to be skimmed, it is certainly hard work to 

 skim with hand-power. Windmills could not well be used as 

 they do not give uniform speed. Tread-power is often used to 

 run farm separators and is very well adapted to this purpose, as it 

 is steady and uniform, and does not cost anything after the 

 apparatus has once been purchased. The power can be supplied 

 by using different kinds of animals. Sheep, goats, dogs, and 



