92 



JOURNAL OF ECONOMIC ENTOMOLOGY 



This may possibty be applied more generally as soon as we recog- 

 nize the vital factors and realize the connection between the period of 

 maximum oviposition and adverse climatic conditions. 



Vice-President Herrick: I would like to ask Dr. Felt if he knows 

 the altitude of Ticonderoga? 



Mr. E. p. Felt: Approximately 200 feet. 



Mr. C. Gordon Hewitt: I should like to add a word of praise to 

 what has been already said regarding Dr.Fernald's presidential address, 

 so full of suggestion and admirable counsel. We find especially in Can- 

 ada the truth of his remarks in regard to the necessity of working out 

 more carefully and completely the life-histories of many known inju- 

 rious insects. We have not had many workers in the past and have 

 found it necessary to rely very largely on the results of investigations 

 obtained in the United States. We are now finding on investigation 

 that in many instances we are mistaken and that we have not been 

 advising the best methods in the control of some of our common in- 

 sects; therefore, I appreciate very fully the significance of the state- 

 ment that further intensive work is necessary as all ^dll agree. 



I was much interested in the second part of the address, in regard 

 to the new fields of work, especially those which concern us, for exam- 

 ple, relation of temperature to insects. The factors governing the 

 distribution of insects concern us very closely, especiall}^ in regard to 

 the question as to what insects now occurring and injurious in the 

 United States are likely to find congenial conditions for injurious activ- 

 ity when they arrive in Canada. I think from the fact that we have 

 not found so manj^ destructive insects as we might be led to expect 

 would appear to indicate that certain species have reached the north- 

 ern limit of their destructive powers. 



I was especially interested, too, in the President's remarks on the 

 necessity of our becoming more familiar with the relation of food to 

 reproduction and longevity. There was one point that Dr. Fernald 

 did not mention (he naturally could not cover the whole ground of 

 new work), and that is the desirability of securing information cover- 

 ing or bearing on the relations of the Chemotaxis. The recent excel- 

 lent results obtained by Messrs. Dean and Hunter and others in the 

 use of poisoned bran, made attractive by lemon and other fruits, is a 

 long step forward. Dr. Tragardh in Sweden and Mr. Howlett in 

 India have given us much information regarding the attractiveness of 

 various chemical substances. It is certain that this line of inquiry 

 will open up a new field of immense practical value in the control of 

 insect pests. 



We all appreciate, I am quite sure, the great importance of a gen- 

 eral knowledge of foreign insects. As is well known to all the members 



