50 JOURNAL OF ECONOMIC ENTOMOLOGY 



Third Floor 

 Capacity of floor, 43,120 cu. ft. Amount of radiation 900 sq. ft. 



[Vol. & 



BEADING OP THERMOMETERS 



Location of Thermometers 



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



No. 2. In flour in conveyor 14 feet from steam pipes. 



No. 3. Hanging in open 5 feet high, 10 feet from radiator (cleaning room) 



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



Texas 

 Capacity of floor, 5,100 cu. ft. Amount of radiation, none. 



BEADING OF THERMOMETERS 



Time of day 



Thermometers 



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. 



Location of Thermometers 



No. 1. Hanging in open 6 feet higli. 



No. 2. In flour in conyeyor near floor. 



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



