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JOURNAL OF ECONOMIC ENTOMOLOGY 



[Vol. 1 



4. To determiue the effect which varying depths and classes of shel- 

 ter might exert upon the success of hibernation and also upon the 

 time of beginning" and the range in the period of emergence from hi- 

 bernation. 



5. To test the power of adaptation to climatic variations by bring- 

 ing AveeviLs from widely separated localities and hibernating them for 

 comparison with weevils collected at Dallas. In each section food and 

 shelter conditions were to be similar. 



6. To determine upon a large scale and in widely separated lo- 

 calities and under various conditions of shelter the proportion of 

 weevils entering hibernation which might survive. 



7. To determine the relation of climatic conditions to the emergence 

 period in each locality. 



8. To determine the longevity of hibernated weevils after emer- 

 gence both with and without food. 



In the following table are summarized the principal points relating 

 to the installation of the experiments for this season : 



Table I. Installation of hibernation experimentf, 1906-1907 



Having now followed the beginning of the experiments, it is in 

 order to note the climatic conditions prevailing throughout them. 

 Temperature records were the most abnormal and also the most sig- 

 nificant and therefore only those are given in Table II. 



