February, '13] 



DEAN: HEAT FOR MILL INSECTS 



51 



Inter-Ocean Mills, Topeka, Kansas. 

 Capacity of mill, 1,000 barrels. 

 Building, frame. 

 Date of heating, July 28, 1912. 

 Character of day, partly cloudy and light breeze. 

 Outside maximum temperature, 95 degrees. 

 Outside minimum temperature, 72 degrees. 

 Heating system, steam pipes along the wall. 

 Steam pressure maintained during the heating, about 80 pounds. 



First Floor 

 Capacity of floor, 34,790 cu. ft. Amount of radiation, 262 sq. ft. 



Location of Thermometers 

 No. 1. Hanging in open 5 feet high, 15 feet from steam pipes. 

 No. 2. Hanging in open 5 feet high, 18 feet from steam pipes. 

 No. 3. Resting on roll, 12 feet from steam pipes. 

 No. 4. In two inches of flour near floor, 5 feet from steam pipes. 

 No. 5. In flour in conveyor near floor 20 feet from steam pipes. 

 No. 6. Hanging in open 6 feet high, 20 feet from steam pipes. 

 Results: Ninety to ninety-five per cent of the insects were killed. 



Second Floor 

 Capacity of floor, 38,269 cu. ft. Amount of radiation 190 sq. ft. 



HEADING OF THERMOMETERS 



