COTTOX BOLL WEEVIL IX THE MISSISSIPPI VALLEY. 



29 



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Days. 

 14 



14.3 

 15.4 

 14.7 

 15.5 

 16.7 

 13.2 

 13.5 



co' to' 





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16 



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Total eggs 

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V. 



w 



s 



85 



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