22 American Butter Factories, 
Fi(/. 13. — View of Healer, tclth Front and Side of BricJacork removed. 
for farm dairies (Fig. 16). The jfirc-box underneath (Fig. 15) runs 
from end to end. It is simply a copper cylinder with a jacket 2 
inches or more from cylinder on lower side, so that water sur- 
rounds the cylinder or fire-box. This vat requires but very little 
fuel. I have one of the farm vats upon my farm, and my farmer, 
in summer, has done all the work in making cheese from my 
dairy of 30 cows, using only " a pan of chips," say 10 to 12 
quarts. The pipe at A hanging over the vat. is a movable 
syphon for drawing off whey. It is represented with one end 
inserted in the tin strainer, which is also movable, or so as to be 
detached. B is the smoke-pipe. 
