52 



JOURNAL OF ECONOMIC ENTOMOLOGY 



[Vol. 6 



Location of Thermometers 



No. 1. Hanging in open 5 feet high, 22 feet from steam pipes. 



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



No. 3. In three inches of bran near floor, 5 feet from steam pipes. 



No. 4. In flour in elevator boot resting on floor, 17 feet from steam pipes. 



No. 5. In oven in laboratory 5 feet high and three feet from steam pipes. 



No. 6. In flour in elevator boot resting on floor, 30 feet from steam pipes. 



Result : Ninety-five to one hundred per cent of insects were killed. 



Third Floor 

 Capacity of floor, 49,375 cu. ft. Amount of radiation 267 sq. ft. 



READING OF THERMOMETERS 



Location of Thermometers 

 No. 1. Hanging in open, 5 feet high, 22 feet from steam pipes. 

 No. 2. Hanging in open 5 feet high, 20 feet from steam pipes. 

 No. 3. In flour in conveyor 6 feet high, 8 feet from steam pipes. 

 No. 4. In flour in purifier 4 feet high, 13 feet from steam pipes. 

 No. 5. .In flour in elevator boot resting on floor 4 feet from steam pipes. 

 No. 6. In flour in conveyor near floor, 11 feet from steam pipes. 

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



Fourth Floor 

 Capacity of floor (including deck) 69,580 cu. ft. Amount of radiation 310 sq. ft. 



READING or THERMOMETERS 



