WASHING AND STERILIZING 199 



2 bbls. of Portland cement $5-20 



20 ft. of 2 X 4 studding 3° 



no ft. of 1% tongued and grooved flooring, 31^2 wide 440 



4 hinges 40 



5 lbs. nails 20 



6 ^-inch iron rods 2^ feet long 1.20 



3 hasps 30 



20 sq. ft. zinc 1-75 



Ball and lever safety-valve i.oo 



3 pounds sheet asbestos 30 



Total $1505 



Elevated Hot Water Tank. A tank providing hot 

 water should be located in or near the boiler room and ele- 

 vated so that hot water can be conducted to the churn, but- 

 ter printer and vats. A few coils of gas pipes placed in 

 the bottom of the tank, through which the exhaust steam 

 from the engine can be conducted, will furnish all the 

 hot water necessary. This tank should be covered and 

 provided with a vent to permit the escape of steam during 

 excessive heating of the water within. 



