LARGE-CAGE EXPERIMENTS;, 1906-7. 



65 



Table XXXII. — Suvimary of tvinter activity as shown by counts of dead weevils — Con. 



CALVERT. 



VICTORIA. 



o This total represents 3.6 per cent of all the weevils put in the cage. 

 b This total represents 1.7 per cent of all the weevils put in the cage. 



In the section of the table containing the records for Dallas the 

 large number of weevils found dead in section 6 on January 24, 1907, 

 may be explained by the statement that no previous collection of 

 dead weevils had been made in this section. All but 50 of the wee- 

 vils found were upon cheesecloth stretched horizontally across the 

 section above the ground. The full number is included merely to 

 indicate the proportion of weevils which probably fall to the ground 

 upon dying. In this section less than 20 per cent remained upon 

 the screen, and it is reasonable to suppose that a similar proportion 

 may have existed in other sections. The percentage of mortahty in 

 each place is much smaller than the percentage of living weevils. 

 Upon the charts shown in figures 3 to 5 the number of dead collected 

 is indicated by a broken line extending beyond the line representing 

 the number of living weevils. 

 90317— Bull. 77—09 5 



