— 2o8— 



Prof. Cook then read an extract from a Bulletin of the Michigan 

 Agricultural College concerning spraying with the arsenites, showing 

 that London purple in his experiments had injured foliage more than 

 Paris green. 



A long discussion followed concerning the injury of foliage by the 

 application of the arsenites, in which various opinions were expressed, 

 the most important point brought out being the necessity of an exhaust- 

 ive investigation of the whole subject. 



Prof. W. O. Atwater, of the Office of Experiment Stations of the 

 Department of Agriculture, was then introduced to the Club, and gave 

 a pleasant talk, especially with reference to the co-operation of his office 

 with the recently organized Association of Official Economic Entomol- 

 ogists. 



The election of officers then took place with the following result : 

 President, A. J. Cook ; Vice-President, C. J. S. Bethune ; Secretary, F. 

 M. Webster. 



On motion of Mr. Smith the secretary /ro. tem. was authorized to 

 publish the proceedings of the Club in Entomologica Americana. 



The Club then adjourned to meet after the adjournment of the Bio- 

 logical Section, A, A. A. S. 



On re-assembling, Mr. L. O. Howard read a paper entitled "On 

 the Parasites and Predaceous Enemies of the Grain Plant-louse " in which 

 he reviewed the previous literature and discussed at some length the 

 rearing by the Division of Entomology, U. S. Department of Agriculture, 

 of nme true parasites of Siphonophora avetice. Illustrations of all oi the 

 species were exhibited, together with a full series of specimens. The 

 paper was discussed by Mr. Saunders and Prof. Cook. 



Mr. H. H. Lyman read a paper on "Variation in the genus Calli- 

 morpha,'" in connection with which he exhibited a large series of speci- 

 mens and discussed at length the question of specific limitations. The 

 paper was discussed at length by Prof. J. B. Smith. 



A letter from Mr. Wm. H. Edwards was then read by the Secretary, 

 giving the results of breeding experiments for the season. 



The Club then adjourned sine die. 



Clarence M. Weed, 



Secretary pro te?ti. 



