LARGE-CAGE EXPERIMENTS. L906-7, 



63 



Tabli \ X X 1 Activity during normal hibernation period , t906 ■ Continued. 



CALVERT. 



Date. 



\\ ee\ lis counted In section 



To< .1 



\\rr\ tlfi 



count- 

 ed. 



Tem] 



lute. 





I. 



2. 



3. 



4. 



5. 



ii. 



7. 



8. 



'». 



in. 



Max. 



Mean. 



L906. 

 Nov. 17 



17 







28 



9 



l 



12 



7 

 1 

 



ii 



6 



B 



10 

 7 

 3 



2 

 2 



-•17 

 '.X) 



63 



:<7 

 28 

 13 

 36 



28 



6 

 



3 

 2 



1 

 1 

 2 



1 



161 



in 

 17 



12 



l 



5 

 l 



2 

 1 







167 

 142 

 397 



299 

 L59 



86 



7.'. 

 '.H 

 69 



°F. 



/ 



Nov. 29 



.' ii 





139 

 69 



;,ii 

 20 

 17 

 21 

 22 

 11 



I 



•j 

 1 



1 





 



|| 







Dec. 2 



1 17 3Q 



82 

 82 

 56 



7.". 

 79 



71 



In. II 



L907. 



Jan. ii 



Jan. 21 



Jan. 28 



Feb. u 



Feb. is 



Feb. 25 



1 1 68 

 3 30 

 1 13 

 3 L2 



l L3 



3 10 



il 

 ■22 

 7 

 .'. 

 6 

 5 



70.0 



I7.ll 

 39.0 

 52 H 

 62 ii 



Total 



16 



IH7 



171 



61 



272 



514 



44 



216 



349 



5 



a 2, 085 













VICTORIA. 



1908. 



133 



'Jill 



"345 

 163 



108 



"\2-y 



89 

 91 

 75 



159 















196 



1 , 782 



lis 

 708 



253 

 404 

 729 

 599 

 142 

 312 



71 

 73 

 17 

 65 



77 

 77 

 66 

 60 



71 

 70 





Dec. in 



:,ni 





64 



546 



323 

 236 



""ig" 



59. 5 



Dec. l'.' 







In. 11 



Dec. 21.. 



62 



95 



66 



186 



81 



18 



200 



51.5 



1907. 



Jan. 7 



134 



11 



73. 



Jan. ii.. . 



147 

 68 



48 



:,:. 

 49 



89 

 50 

 55 

 40 

 28 



62 

 27 

 40 

 21 

 13 



"'69' 

 85 



65 

 66 



L06 



76 

 46 

 46 

 31 







72.0 



Jan. 21 



Feb. 4. 



16 

 43 

 18 

 50 



106 

 67 

 29 



189 

 123 



74 



5 

 3 

 3 



50.0 



Feb. is 



62.0 



Feb. 26 



66.5 











Tutal . 



562 



561 



994 



388 



975 



386 



209 



948 



1,079 



41 



6 6,143 













a This total represents 10.5 percent of all the weevils put in the rage. 

 6 This total represents 27.7 per cent of all weevils put in the cage. 



It is hardly probable that a majority of the weevils may have 

 been counted upon two or more dates, but the fact that dead weevils 

 were found clinging to the wire (PL VII, fig. 1) at the time of each 

 examination indicates a considerable mortality among the active 

 weevils and that the places of the dead ones in successive counts 

 were taken by weevils which had become active since the preceding 

 examination. The percentages of active weevils for the three local- 

 ities show a lather significant difference, and are given for the sake 

 of this comparison without presuming to state correctly the actual 

 percentage of weevils placed in hibernation which remained active 

 duiing the winter in the respective localities. At Dallas the 2,406 

 weevils counted during the winter constitute 7.8 per cent of the total 

 number placed in hibernation. At Calvert the 2,08.") active weevils 

 con-lit ute 10.5 per cent of the 19, 108 placed in the cage. At Vic- 

 toria the n.i i:; active weevils constitute 27.7 per cent of the 22,463 

 in the experiment. Since approximately the same number of exam- 

 inations were made iii each locality the differences in percentage 

 indicate in a genera] way the relative activity in these sections of 



