THE EARTH'S BOUNTY 



is eight feet above the floor, and the whole 

 house is so well shaded by a large elm tree, 

 that, even on the hottest day in summer, there 

 is hardly any change in temperature within 

 its stone walls. 



When the last pail of milk has been brought 

 down from the barn the separator is started, 

 as the work is best accomplished whilst the 

 milk is still warm. The action of the separa- 

 tor collects the fatty constituents of the milk 

 by means of centrifugal power. The cream 

 particles, being lighter, are forced to the top, 

 whilst the milk, being the heavier, is drawn 

 down to the level of the revolving disks in the 

 center of the machine. Outlets are arranged 

 at the respective heights, the cream flowing 

 from the top, and the milk from the lower. 

 My own experience has been with a hand- 

 power De Laval machine, which is simplicity 

 itself. All the operator has to do is to pour 

 the new milk into the opening at the top of 

 the machine, put a vessel under the mouth of 

 each outlet tube and turn the crank. 



189 



