1907 ENTOMOLOGICAL SOCIETY. 43 



During the remainder of the morning and in the afternoon the following 

 papers were read and briefly discussed: "Further notes on Hepialus Thule 

 at Montreal" by Mr. H. H. Lyman, and "Notes on Collecting Sthenopis 

 (Hepialus) Thule at Montreal" by Mr. E. Denny. (These two papers are 

 published in the Canadian E^itomologist for December 1907). "The Two- 

 winged Flies of the Province of Quebec" by the Rev. Dr. Fyles ; "The 

 Scale Insects of Ontario," illustrated by a large number of specimens, by 

 Mr. T. D. Jarvis; "An Unusual Outbreak of Halisidota Caterpillars" by 

 Mr. Arthur Gibson;^ 'A Remarkable Outbreak of the Variegated Cut-worm" 

 by Prof. Bethune and Mr. L. Caesar; "Insects Injurious to Ontario Crops 

 in 1907" by Dr. James Fletcher; "Insects of the Season, 1907" by Prof. 

 Bethune; "The Entomological Record for 1907" by Dr. Fletcher. The 

 session was brought to a close with the Presidential Address of Dr. 

 Fletcher on "The Entomological Outlook in Canada." These papers will 

 be found in subsequent pages of this report. 



In the evening an illustrated lantern lecture was given in Massey Hall 

 bv Dr. E. M. Walker of Toronto, on collecting and rearing Dragon-flies, 

 after which votes of thanks were accorded to President Creelman, the local 

 ojficers of the Society and the lecturers. The meeting then adjourned. 



COLLECTING AND REARING DRAGON-FLIES AT THE GEORGIAN 

 BAY BIOLOGICAL STATION. 



By E. M. Walkee, M.D., Toronto. 



During the summer of 1907, I spent two months at the Freshwater 

 Biological Station, Georgian Bay, Ont., and there had good opportunities 

 for studying the aquatic insect life, especially the Dragon-flies, which were 

 particularly abundant both in species and individuals and to which a con- 

 siderable amount of time was devoted. 



In this work I was ably assisted by W. J. Eraser, who also continued 

 the work for about three weeks after I left, and to whose keen observation 

 and enthusiasm much of the credit of the work is due. 



The Georgian Bay Biological Station, whose site is on one of the num- 

 erous islands about the entrance to Go Home Bay affords the entomologist 

 almost ideal conditions for the study of aquatic insect life, combining as 

 it does the advantages of a laboratory equipment with those of extremely 

 varied natural surroundings in which a great many different kinds of 

 aquatic environments are represented. 



In addition to the laboratory building, the Station is provided with 

 a dwelling house for the use of its working staff, a store-house for material, 

 a tank and pumping engine to supply the laboratory with running water 

 and a boathouse supplied with several small boats, fishing-nets and other 

 collecting apparatus. " The laboratory building is situated close to the 

 water's edge and has an ample floor space of 20 x 40 ft., divided into a large 

 general laboratory and 4 small rooms, used respectively as photographic, 

 chemical, glassware and private rooms. The laboratory affords working 

 space for 12 students and in its centre is a long aquarium table supplied 

 with running water from the tank so that it is Dossible to keep under obser- 

 vation animals, such as fish-embryos or the inhabitants of rapid streams 

 which soon die or at least do not thrive in an ordinary aquarium. 



In view of its connection with the Department of Marine and Fisheries 

 the work of the Station is primarily concerned with problems relating to 

 pisciculture, such as the spawning habits of the various food fishes and the 



