HIBERNATION EXPERIMENTS IN SMALL CAGES. 



35 



ing. These were all placed out of doors at various dates between 

 November 3 and December 15, 1904. The examinations were made 

 during April, 1905. 



Table XII. — Suynmani of hibernation experiments, 1904-5. 



The most striking point shown in this table is the fact that no 

 weevils survived except at Victoria. Even there the percentage was 

 ver}^ small. Undoubtedly from 5 to 10 per cent of the weevils placed 

 in the cages must have escaped through the wire before the season 

 became cold enough for all to hibernate. The explanation for the 

 death of all weevils confined north of Victoria, Tex., may be found 

 in the exceptionally severe climatic conditions occurring during this 

 season. These have already been indicated in Table VIII, page 27. 

 It should be stated, however, that while weevils were scarce in the 

 spring of 1905 in all of these localities they were not exterminated 

 in Texas except at Paris. At this place examinations made during 

 the season of 1905 failed to show any weevils in a field which had 

 been quite heavily infested late in the season of 1904. 



HIBERNATION EXPERIMENTS IN SMALL CAGES, 1905-6. 



Tests were made at Dallas, Calvert, and Victoria, Tex., representing 

 the northern, central, and southern sections of the infested area. 

 Owing to the increased complexity of the experiments and the more 

 valuable character of the results obtained, it seems advisable to 

 present the data in a somewhat more detailed manner. 



