74 THE CANADIAN ENTOMOLOGIST 



Hessian Fly aiul other insects affecting field crops, which estab- 

 lished so securely his reputation 'as an investigator and as an 

 authority on this group of insect pests, was carried out n\cunl\- 

 during the years 1891 to 1902, when he lield the position of Knto- 

 mologist to the Ohio State Experiment Station. During 1903-04 

 he was attached to the Biological Survey of Illinois. 



After so many years of fruitful preparation he went to Wash- 

 ington and joined the Bureau of Entomology of the United States 

 Department of Agriculture in 1904, and two years later the section 

 of Cereal and Forage Insect Investigations was created and he 

 was given charge of that important section of the activities of 

 the Bureau. From a single assistant his staff increased to more 

 than fifty trained men, and the last appropriation for his work 

 (1915-16) amounted to 8114,500, figures that indicate the zeal 

 with which he devoted himself to his work. He was one of the 

 first to recognise the importance of the establishment of field 

 stations, and at the time of his death he was directing the work 

 of about eighteen such stations in the different States of the l/nion. 



His connection with Canadian entomology was a long and 

 valuable one. The October number of The Canadian Ento- 

 mologist of 1888 contained his first contribution — a very character- 

 istic letter — his last appeared a week or two before his death. He 

 was elected an Honorary Member of the Entomological Society of 

 Ontario in 1899, and his connection with the Society was one of 

 which he always spoke with pride and genuine comradeship, for 

 it meant an additional bond with some of his best friends. We 

 shall always remember the pleasure of his company and the prac- 

 tical address he gave at the Jubilee Meeting of our Society in 1912, 

 his last visit to Canada. In our work we shall miss his counsel 

 and co-operation, but we shall be stimulated by his example, and 

 he will always be remembered as one who was ever ready to assist 

 and whom we counted it as a pri\ilege to number among ourselves. 



C. Gordon Hewitt. 



POPULAR AND PRACTICAL ENTOMOLOGY. 

 Eradication of th^j; Bedbug by Superheating. 



BY W. A. ROSS, field OFFICER, DOMINION ENTOMOLOGICAL 

 LABORATORY, VINFLAND STATiON, ONT. 



Our experience with superheating as an effective method of 

 controlling the Mediterranean Flour Moth (Ephestia knehuieUa) 



March, 1910 



