1903] The Entomological Society of Ontario. 125 



much useful information as to the important part which had been 

 played by the Entomological Society in developing economic ento- 

 mology in Canada. He divided the history of the Society into 

 three periods, referring to the excellent work which had been per- 

 formed during these periods by some of the prominent workers 

 whose names were now so well known in connection with the 

 Society. 



Following Prof. Lochhead's address, Dr. L. O. Howard, U. S. 

 Entomologist, gave a succinct statement as to the Transmission 

 of Malaria and Yellow Fever by Mosquitoes. This presentation 

 of a subject which is now acknowledged to be one of the greatest 

 discoveries of the latter end of the last century, was treated in such 

 a plain and delightful manner by the eminent lecturer, chat it is no 

 exaggeration to say that the whole audience sat spellbound during 

 the half hour, which seemed to be only a few minutes, so keen 

 was the attention. After these two speeches another half hour was 

 taken up with answering the many questions bearing on the latter 

 subject, which were asked by many of thore present. It is greatly 

 to be regretted that so few of the medical profession were in attend- 

 ance. Knowing the intense interest of this subject to them and 

 its bearing on the well being of the country at large, every doctor 

 in Ottawa had been specially and individually asked to be present. 



On Friday morning the Society met early, and many valuable 

 papers were read and discussed. Dr Howard spoke of "Recent 

 Work in American Economic Entomology," and gave an account 

 of the excellent vvork on the Cotton Boll Weevil which had been 

 performed by the officers of his department, and pointed out the 

 large saving in actual money which could be made in similar cases 

 by the application ot definite scientific knowledge 



" Insects Injurious to Crops in Ontario in 1903" were dealt 

 with, together with the remedies which had been found most 

 effective in saving loss, by Prof. Lochhead, of Guelph, and Dr. 

 James Fletcher, of Ottawa. Prof. Lochhead also read a paper on 

 " The Present Status of the San Jos6 S ale Question in Ontario," 

 and showed plainly how serious a matter the presence of this 

 insect in the Ontario orchard of the Niagara and St. Catharines 

 Districts really was. Insects Injurious to the Basswood tree, were 

 treated by Mr. Arthur Gibson, of Ottawa. 



