FARM SEPARATORS. 153 
that if thin cream is skimmed greater can capacity is necessary, 
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. 
Fic. 84.—The Reid hand separator. Fic. 85.—Empire hand separator. 
The thickness 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 
