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habits, and liad no basis in any actual experience witli the insect under 

 discussion. He had recommended and believed that the nse of the 

 arsenites is one of the most practical and effective means of control. 

 There can now be no doubt, however, that this iusect is an exceptional 

 one and probably can not be controlled by means which are qnite effec- 

 tive against other insects, enemies of our trees, having; similar habits. 

 Emphasizhig- the great damage which may be done by this insect, he 

 was convinced that its control and destrnction are not only extremely 

 necessary to the State of Massachnsetts, but are also of national impor- 

 tance. He had always been in favor of extermination rather than of 

 attempting to limit and control, but he pointed out the very great diffi- 

 culty of exterminating the species if the work is mainly directed toward 

 the destruction of the eggs, referring in this connection to his early 

 statement in this regard, in which the destruction of the eggs had not 

 been deemed of prime importance. He thought, however, that in this 

 particular he had been too extreme. He pointed out the absolute 

 futility of any efforts at extermination which did not promise complete 

 results. All that he had said in criticism of the commission had 

 been relative to the oi:)erations prior to Mr. Fernald's controlling 

 connection with the work. He heartily appreciated the value of the 

 present methods as detailed by Mr. Fern aid. He felt that if at the 

 outset a supreme effort had been made, with the aid of a very large 

 appropriation, comi^lete extermination of the insect could have been 

 accorai)lished. He gave a summary of some early work and his criti- 

 cism of it. He was somewhat inclined to qnestion whether we are now 

 justified in working on the basis of extermination through a State com- 

 mission, or whether it would not be better to encourage the efforts of 

 private individuals wherever the insect occurred, as is the case with 

 other insect pests. He complimented very highly, however, the present 

 work of the commission. In discussing the subject of parasites, which 

 had been referred to by Mr. Fernald, he was not inclined to agree with 

 the idea that the aim of the commission at complete extermination 

 detracted at all from the necessity of undertaking the importation of 

 foreign parasites. He said that such introduction could be accom- 

 plished at comparatively slight expense and would aid just so much 

 the object of the commission, pointing out also the greater usefulness 

 of European parasites over native ones if introduced without second- 

 ary parasites. This would be particularly evident if his idea of the 

 greater value of the destruction of the larvae rather than the eggs were 

 conceded. 



In illustration of the great weight and value of Mr. Kiley's ideas on 

 this subject, Mr. Fernald referred in the most complimentary way to 

 the value of his long years of labor in the field of economic entomology, 

 which had resulted in a store of information used and appreciated by 

 all the workers of the world at the present day. He gave some statis- 

 tics of the injury capable of being done by the gypsy moth in the State 



