January gth, /pT2.] PROCEEDINGS. ix 



Ordinary Meeting, January 9th, 19 12. 



Mr. Francis Jones, M.Sc, F.R.S.E., F.C.S., Vice-President, 

 in the Chair. 



A vote of thanks was passed to the donors of the books 

 upon the table. 



Dr. C. Gordon Hewitt, F.E.S., Dominion Entomologist, 

 Ottawa, read a paper entitled "The Control of Insect 

 Pests in Canada," 



The author said that Canada is unsurpassed in the variety of 

 problems which it offers the Entomologist, Some he is permitted 

 to solve, others baffle him by reason of their magnitude. With 

 an area of more than three and three quarter million square 

 miles, of which one million and a quarter square miles are 

 forest lands, and extending from a latitude of 42 degrees to the 

 Arctic Ocean, with her shores washed by three oceans and her 

 land rising to an elevation of over nineteen thousand feet, the 

 variations in climate may readily be understood. The vastness 

 of her plains will be appreciated when it is remembered that the 

 three western or prairie provinces — Manitoba, Saskatchewan, 

 and Alberta — are larger than France, Germany, and Italy com- 

 bined, and include the finest grain-producing land in the world. 

 At the one extreme in South-Western Ontario, grapes and peaches 

 ripen out of doors, and a shade temperature of over 95 degrees 

 is a common occurrence in the summer ; at the other extremes 

 good wheat can be grown at Fort Simpson, on the Mackenzie 

 river, 800 miles north of Winnipeg, and in latitude 61 '5 2 degrees, 

 where the thermometer drops to 50 degrees below zero 

 Fahrenheit in the winter. Thus, briefly, may the physical facts 

 be summarised. 



So great an area, including as it does widely different climatic 

 and other conditions, implies a very considerable variety of insect 

 life. In addition to variety, it involves no little difference and 

 possibility of difference in the behaviour of the same species in 



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