Papers on the cotton boll weevil and related and associated insects . and temperature records, Hallettsville, Tex., 1899-1901, compared with normals foreach year. 16 PAPERS ON THE COTTON BOLL WEEVIL, ETC. Oct- Nov. Qet. Jan. ftt, tfav. q„ f/a«j JUne Ja)^ (Ug £CjT. Fig. 5.—Rainfall and temperature records, Hallettsville, Tex., 1902-1904. compared with normals for each vear. HIBERNATION AND DEVELOPMENT OF BOLL WEEVIL. 17 Texas section of the U. S. Weather Bureau. The normal total rain-fall during the winter months of December to March for southwesternTexas is inches, for the coast country 8
Papers on the cotton boll weevil and related and associated insects . and temperature records, Hallettsville, Tex., 1899-1901, compared with normals foreach year. 16 PAPERS ON THE COTTON BOLL WEEVIL, ETC. Oct- Nov. Qet. Jan. ftt, tfav. q„ f/a«j JUne Ja)^ (Ug £CjT. Fig. 5.—Rainfall and temperature records, Hallettsville, Tex., 1902-1904. compared with normals for each vear. HIBERNATION AND DEVELOPMENT OF BOLL WEEVIL. 17 Texas section of the U. S. Weather Bureau. The normal total rain-fall during the winter months of December to March for southwesternTexas is inches, for the coast country inches, and for centralTexas inches, while the total normal effective winter tempera-ture a during December to March, inclusive, is, for southwestern Texas1,° F., for the coast country 1,° F., for eastern Texas1,° F., for northeastern Texas ° F., and for central Texas1,° F. The average effective temperature for the eastern andsouthwestern countries is therefore from 200° to 300° higher than thatof central Texas for this period and from 450° to 700° F. higher thanthat of the coast and northeastern Texas. If we consider the more crit-ical period of December to February, inclusive, the southwestern andeastern count
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