HIBEKNATION AND DEVELOPMENT OF BOLL WEEVIL. 15 



Oct. Moi^. Oec. Jan Fel. I^ar. hfx. lA^Y June July' . C«^ 5^j)f 



NORM/\L ..ii'n\-.'=i 



I6<jtj. iqio. 



INtORMAL- 



l<?00-OL 4,rv. 



NORMAt ^m. 



NORMAL 

 /900-OI. 



Fig. 4.— Rainfall and temperature records, Hallettsville, Tex., 1899-1901, compared with normals for 



each year. 



