HIBERNATION EXPERIMENTS IN SMALL CAGES. 37 



while iii the others but 0.1 I per cent Burvived. In an average of 

 all tests the survival was 1. 1 percent. 



The nature of the shelter failed (<> show anv significant influence 

 in these small-cage experiments. 



The relative favorableness of outside conditions is shown in the 

 following table l>y n comparison of the data in each of the three 

 localities. Tins table docs noi include the experiments with cotton 

 Beed: 



T IB] i" X IV. < 'omparison of survival records outdoors and indoors for thru '/'< tas 



localities in 196 





i >utside. 



inside. 



Locality. 



Weevils 



pul in 

 hiberna- 

 tion. 



Wee'N lis sun Ived. 



Win Us 



pul ill 



hlberna- 



tlon- 



w i c\ [is sun Ived. 





Number. 



Percent- 

 age. 



Number. 



Percent- 



Victoria, Tex 



500 

 294 

 600 



11 

 11 

 3 



1 1.0 



U2 



305 



i 





 



ii 97 



Calvert, Tex 



ii 



Dallas, Tex 



2,100 











Total 



1,394 



55 



3.9 2.817 



4 



0. 1 1 











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 cloors 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 entering hibernation seems to be indicated. 



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





Period. 



Total 

 survival. 





Nov. 1-15, 1905. 



Nov. 15-30, 1905. 



Dec. 1-15, 1905. 



Num- 

 ber. 





Locality. 



Weevils 



|nit in 

 biber- 



naiion. 



Weevils 

 Burvived. 



Weevils 



pul iii 



Weevils 

 sun ived. 



Weevils 

 put ill 



hiber- 

 nation. 



Weevils 

 survived. 



Per 

 cent. 





Num- 

 ber. 



Per 



coil. 



hil>er- 

 nation. 



Num- 

 ber. 



Per 



cent. 



Num- 

 ber. 



Per 



cent. 





Victoria, Tex 



:,oo 



7 



1.4 



.5 

 .0 



200 

 405 



1,(10 



l 



40 

 3 



0.5 



10.0 



.5 



212 



7 



3.3 



15 

 41 



■A 



i in 



Calvert, Tex.. . 



I'M 1 



i, mi 



i ex 







400 











.i':i 









Total 



994 S 



.8 



1,205 44 



3.7 



G12 



7 



1.1 



59 



2. 10 















This table does not include the experiments in cotton sihh\. The 

 comparisons show that during the fall of 1905, November 1"> to 30 

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



