48 JOURNAL OF ECONOMIC ENTOMOLOGY 



\ Location of Thermometers 



No. 1. Hanging in open 5 feet high, 12 feet from steam pipes. 

 No. 2. In flour in conveyor near floor, 12 feet from steam pipes. 

 No. 3. In flour in conveyor near floor, 12 feet from steam pipes. 

 Results: One hundred per cent of the insects were killed. 



Hunter Milling Company, Wellington, Kansas. 



Capacity of mill, 1,000 barrels. 



Building, brick. 



Date of heating, July 21, 1912. 



Character of day, partly cloudy and calm. 



Outside maximum temperature, 97 degrees. 



Outside minimum temperature, 74 degrees. 



Heating system, steam pipes along wall and a few radiators. 



Steam pressure maintained during the heating, about 100 pounds. 



Basement 

 Capacity of floor 33,790 cu. ft. Amount of radiation 1,020 sq. ft. 



BEADING OF THERMOMETERS 



[Vol. 6 



Time of day 



8.00 a. m. 



10.00 a.m. 



12.00 m., . 

 2.00 p. m 

 4.00 p. m 

 6.00 p. m 

 8.00 p. m 



10.30 p. m 



No.l 



Degrees 

 96 

 97 

 100 

 102 

 104 

 103 

 103 

 102 



Thermometers 



No. 2 



Degrees 

 128 

 134 

 136 

 136 

 138 

 140 

 143 

 145 



No. 3 



Degrees 

 98 

 104 

 105 

 107 

 108 

 109 

 109 

 113 



No. 4 



102 

 106 

 109 

 109 

 109 



Location of Thermometers 



No. 1. In flour in elevator boot resting on floor 5 feet from steam pipes. 

 No. 2. Hanging in open 6 feet high, 10 feet from steam pipes. 

 No. 3. In flour in elevator boot resting on floor 15 feet from steam pipes. 

 No. 4. In flour in elevator boot resting on floor 10 feet from steam pipes. 

 Result: Killing temperatures were not reached in elevator boots resting on the 

 concrete floor. 



