1 T '- 



THE CANADIAN ENTOMOLOGIST. 271 



Mr. Coquillett's paper, entitled " Hydrocyanic Acid Gas as an Insec- 

 ticide," was read by the Secretary. The paper consisted of an historical 

 review of the use of this gas in California, together with an account of 

 the methods in use at the present time, and some slight consideration of 

 its effect upon different insects. The cost of fumigating a tree varies 

 from five cents to one dollar, and even at the latter rate figures were pro- 

 duced to show that it is economical. 



A paper by Dr. J. A. Lintner, on " Arsenical Spraying of Fruit Trees 

 while in Blossom," was read by Mr. Smith. The author reviewed the ex- 

 periments by Mr. Webster, and the statements by Mr. Cook, and 

 suggested that the whole question can be settled by confining a hive of 

 healthy bees to blossoms sprayed with Paris green, and afterward testing 

 the stomach for arsenic. The law against spraying while trees are in 

 blossom, as passed by the Legislature of Ontario, was reviewed, and- a 

 long list of the insects which might be satisfactorily treated by arsenical 

 spraying at the time of blossoming was given. Further experimentation 

 was strenuously urged. Some discussion followed by Messrs. Webster 

 and Garman. 



The fifth session was held in the afternoon of the 16th August. The 

 following officers for the ensuing year were elected : — 

 President, L. O. Howard. 

 First Vice-President, J. B. Smith. 

 Second Vice-President, F. L. Harvey. 

 Secretary, C. P. Gillette. 



Three papers on the insects of the season in their respective localities 

 were read by Messrs. Webster, Smith and Osborn, and were discussed 

 by Mr. Riley. 



A paper by Mr. R. Allan Wight, of Auckland, New Zealand, was read 

 by Mr. Osborn; it was entitled " leery a purchasi and Vedalia cardiiialis in 

 New Zealand." The paper consisted of a condensed summary of the 

 history of these two insects in New Zealand and their inter-relations. 

 This paper was discussed by Mr. Riley. 



Mr. Smith then read a paper by Mr. F. W. Urich, of Port of Spain, 

 Trinidad, consisting of " Notes on Some Insect Pests of Trinidad, B. W. 

 I." The paper was an interesting summary of Mr. Urich's observations 

 on the injurious insects of that Island, and referred mainly to Coccidae and 

 their natural enemies, a leaf-cutting ant {Atta sexdeus), a longicorn beetle 

 {Steirastoma depression) and certain Acridiidae. Especial mention of a 

 little Cyprinodont fish was made. This fish is found commonly all 

 through Trinidad, and feeds upon mosquito larvae. Mr. Urich suggest 

 ed its introduction into America for use in tanks and ponds. 



The Secretary then read a " Note on Slip-records," by Mr. Cockerell. 

 The author suggested the use of a uniform system of notes upon slips of a 

 uniform size by all entomologists, and submitted samples. The question 

 was discussed by Messrs. Hopkins, Summers and Riley. 



The Association then adjourned subject to the call of the Executive 

 Committee. 



