HIBERNATION EXPERIMENTS IN SMALL CAGES. 



37 



while in the others but 0.14 per cent survived. In an average of 

 all tests the survival was 1 .4 per cent. 



The nature of the shelter failed to show any significant influence 

 in these small-cage experiments. 



The relative favorableness of outside conditions is shown in the 

 following table by a comparison of the data in each of the three 

 localities. This table does not include the experiments with cotton 

 seed : 



Table XIV. — Comparison of survival records outdoors and indoors for three Texas 



localities in 1905-6. 



Locality. 



Outside. 



Weevils 

 put in 



hiberna- 

 tion. 



Weevils survived. 



Number. 



Percent- 

 age. 



Inside. 



Weevils 

 put in 

 hiberna- 

 tion- 



Weevils survived. 



Number. 



Percent- 

 age. 



Victoria, Tex 

 Calvert, Tex . 

 Dallas, Tex.. 



Total.. 



500 

 294 

 COO 



2.2 



14.0 



.5 



412 



305 



2,100 



1,394 



2,817 



0.97 











0.14 



During this season it is very evident that in all localities outdoor 

 conditions were decidedly more favorable for successful hibernation. 

 Upon the average the survival out of doors was twenty-eight times 

 as successful as in the tests made indoors. 



Grouping the experiments according to fifteen-day periods from 

 November 1 to December 15, when they were instituted, the most 

 favorable time for enterinc: hibernation seems to be indicated. 



Table XV. — Comparative favorableness of periods for entering hibernation, 1905. 



This table does not include the experiments in cotton seed. The 

 comparisons show that during the fall of 1905, November 15 to 30 

 was more favorable than either an earlier or later period at Calvert 



