112 THE REPORT OF THE ENTOMOLOGICAL SOCIETY. No. 19 



SUMMEE MEETING OF THE E:^T0M0L0GICAL SOCIETY 



OF ONTARIO. 



A summer meeting of the Society was lield at tlie Ontario Agricultural 

 College, Guelph, on Thursday and Friday, July 4 and 5, 1907. Through the 

 kindness of President Creelman the members from a distance were hospitably 

 entertained in the College residence during their visit, the ladies of the party 

 being provided for in the Macdonald Hall. The number in attendance was 

 smaller than anticipated, many who had been looking forward to taking part 

 in the meeting being prevented from coming by a variety of causes. A very 

 satisfactory audience, however, was made up by the Summer School of 

 Ontario teachers from the Macdonald Institute, and several students and 

 members of the College staff. The sessions began on Thursday afternoon 

 in the lecture-room of the Biological Department, the President of the 

 Society, Dr. Fletcher of Ottawa, being in the chair. Mr. H, H. Lyman, of 

 Montreal, read a paper on the distinctions between Thecla calanus and 

 Edwardsii, 



Dr. Brodie, oi Toronto, described the life-history of a colony of the Tent 

 Caterpillar and related his experiences in breeding a large number during 

 a series of years in order to observe the effects of parasites upon them. 



Dr. Fletcher gave an account of a visit he recently paid to Massachusetts 

 and described what was being done to control the Brown-tail and Gypsy moths 

 by the importation of parasites from Europe and by practical field operations. 



Mr. C. W. Nash, of Toronto, spoke on "Balance in Nature," in which 

 he described in a very interesting manner some of the numerous checks and 

 counter-checks which are provided in order to prevent the undue preponder- 

 ance or the extermination of any particular species, and showed how this 

 balance had been upset by man's disturbing agency and the difficult problems 

 that had arisen in consequence. A discussion followed which was partici- 

 pated in by the chairman. Dr. Brodie, Prof. Bethune, Mr. Jarvis, Mr. Csesar 

 and others. 



In the evening the session was held in the Nature Study Lecture-room 

 of the Macdonald Institute and was attended by the Summer School and a 

 number of others from the town and College as well as by the members of the 

 Society, Di. Henry Skinner, of Philadelphia, gave a highly interesting 

 lecture on "Insects as Carriers of Diseases." Mr. C. W. Nash followed with 

 a lively address on "Instinct 'vs. Education" and Dr. Fletcher spoke in his 

 usual attractive manner on "Nature Study as a Means of Education," The 

 evening was thoroughly enjoyed by all present and no doubt the school 

 teachers carried away with them much information and many impressions 

 that will be of value to them in the future. 



The next day, July 5th, was given up to an excursion to Puslinch Lake, a 

 picturesque sheet of water about nine miles from the College. The Summer 

 School joined in the picnic, making up a party of more than sixty in all. The 

 day was spent in collecting botanical and entomological specimens and other 

 objects of interest. At the close short addresses were given by members of 

 the College staff and others on various specimens that had been brought in, 

 including fresh-water shells, insects, and plants. The meeting on the whole 

 was so delightful and successful an experiment that it will no doubt be re- 

 peated in future years and become annually more attractive and well-attended. 



