REPORT OF THE SOCIETY 45 



logy and Zoology; L. Caesar, Associate Professor; A. W. Baker, Lecturer 

 and G.J. Spencer. Demonstrator. To-day it is comprises of : L. Caesar, Pro- 

 fessor of Economic Entomology; A, W. Baker, Professor of Systematic Ento- 

 mology' and Zoology; G. J. Spencer, Lecturer, and J. A. Flock, Demonstrator. 

 Dr. Bethune retired from acti\'e entomological work in 1921 ; no one in 

 Canada has been more keenly interested in the development of applied ento- 

 mology than he. His life has certainly been a most useful one and it is a great 

 pleasure to us in Canada to know of the wide esteem in which he is held by 

 entomologists the world over. 



During the years covered by this review, many students at Guelph have 

 decided upon entomology as their life's work. Some of these have accepted 

 positions outside of Canada where they are making excellent reputations; 

 others have entered federal or provincial services where they are establishing 

 splendid records. 



Professor Baker has made special studies of live stock insects and has also 

 been much interested in the IMallophaga. In 1919, he studied the ^Mallophaga 

 collected by the members of the Canadian Arctic Expedition (1913-1918), and 

 this was published as Part D, of Volume III, on Insects. 



Entomological Society of Ontario 



This well known society has continued to aid to a marked degree the deve- 

 lopment of applied entomolog}- in Canada. Since 1914, the Annual Reports 

 of the Society have been published each year. These contain papers of consi- 

 derable value. The parent society with headquarters at the Ontario Agricul- 

 tural College has held series of winter meetings and these have been of special 

 benefit to students attending the college. The branches of the society in Nova 

 Scotia, Quebec and British Columbia, have also been active. 



The Canadian Entomologist, published by the society has been issued 

 regularly and with the close of 1923, Volume LV was completed. 



University of Toronto 



A course in forest entomology, has been given during recent j'ears at the 

 Universitj^ of Toronto, by Professor E. M. Walker. Dr. Walker too, has 

 continued his studies in Orthoptcra. and Dr. W. A. Clemens, while attached to 

 the University staff, made valuable investigations of ephemerid and other insects 

 as a source of food for fishes. 



MANITOBA 



Federal 



Mr. Norman Criddle has continued in charge of the work conducted from the 

 laboratory at Treesbank. The original building erected in 1915, although small, 

 was the home of much original research. In 1923. a larger permanent structure 

 was erected. ]\Ir. Griddle's investigations have related very largely to insects 

 attacking grain crops. Studies of white grubs, begun in 1914, continued to 

 occupy much of his time, and life-history data on the following species have 

 been obtained; Lachnosterna riigosa Welsh, L. anxia Lee, L nitida Lee. and 

 L. drakei Kby. The Western Wheat-stem sawfly, Cephus ductus Nort. and the 

 Hessian Fly, Phytophaga destructor Say, have been under special observation 



