3L8 Report of the Department of Entomology of the 



Table I. — Fumigation of Larvae at .3 Gram per Cubic Foot. 

 Tests made during January, February and March, 1909, at Geneva, N. Y. 



* Wet bulb reading not taken. The figures in parentheses are based on temperatures 

 taken during other tests, (10) represents the minimum of the various wet bulb temper- 

 ature in the museum and (6) the maximum of the wet bulb readings in the greenhouse. 

 The conditions of humidity were determined by means of wet and dry bulb thermom- 

 eters and a sling psychrometer. 



