PRACTICAL PAPERS—BUTTER FACTORIES. 
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tight, covered with flagging or oak-plank, and the water con¬ 
ducted from the spring through pipes. The pails for holding 
the milk are of tin, from twenty to twenty-two inches in 
length and eight inches in diameter. In famishing a factory, 
two pails are required for each cow’s milk delivered. 
Fig. 5 .—Ground Plan of Thompson’s Butter and Cheese Factory. 
As fast as the milk is received the pails are filled within 
four or five inches of the top, and immediately placed in the 
water. Care is taken that the surface of the milk in the pails 
is not above that of the water in the pools. The pails are set 
close together, and each pool has capacity for holding 2010 
quarts of milk. There should be a constant flow of water in 
