118 



Table XXXII. — Study of the 'infestation of the cotton fields at Calvert, Tex. — Continued. 





Block. 



Average 

 infesta- 

 tion for 

 entire 34 

 blocks. 





Time of record. 



53 



54 



55 



56 



Climatic conditions. 



August 15-17 



September 2-4 



September 14-17 . . . 



October 1-3 



October 22-24 



64 



S9 

 91 

 78 

 95 



69 



94 

 96 

 92 

 99 



.67 



90 

 97 

 88 

 98 



- 62 



97 

 95 

 89 

 95 



Per cent. 

 58.88 



91.41 

 93.20 

 91.56 

 93.67 



Rainfall in July, 1903, 8.61 inches (or nearly 

 four times normal rainfall); Aug. 1 to 15, 

 nearly normal rainfall (0.79 inch, Aug. 2). 

 Average temperature, Julv, 85° F.; Aug. 

 1 to 15, 85|° F. 



Rainfall from Aug. 15 .to Sept. 2, 0.9 inch 

 (nearly normal). Average temperature, 

 same period, S4i°F. 



Rainfall from Sept. 2 to 14, 0.8 inch (about 

 one-half normal). Average temperature, 

 83i° F. 



Rainfall from Sept. 14 to Oct. 1, 0.14 inch 

 (about one-tenth normal) . Average temper- 

 ature, 76f° F. 



Rainfall from Oct. 1 to 22, 3.63 inches, (more 

 than two times normal). Average temper- 

 ature, 74° F. 



Still another series of observations made by Doctor Morrill, at Austin, 

 Tex., shows that similar conditions prevailed in localities nearly 100 

 miles apart. For each of these percentages 300 squares were exam- 

 ined, thus making 11,400 observations in the series. 



Table XXXIII. — Study of the infestation of cotton fields at Austin, Tex. 



Time of record. 



Block. 



1 



2 



3 



1 



5 | 6 j 7 



S 



9 



10 



11 



12 



1903. 



29.0 

 95.3 

 90.3 



34.0 

 95.0 



83.0 



11.0 

 95.3 

 90.3 



15.0 

 96.7 

 90.0 



10.0 

 92.7 

 94.7 



9.0 

 87.3 

 85.3 



19.0 

 95.0 

 92.0 



33.0 

 96.7 

 92 



43.0 

 96.7 

 96.0 



43.0 

 £6.7 

 96.0 



36.0 

 95.3 

 92.7 



31.0 





93.7 





96.0 













Block. 



Average 

 infesta- 

 tion, en- 

 tire 16 

 blocks. 





Time of record. 



13 



11 



15 



16 



Climatic conditions. 



1903. 

 August 4-7 



33.0 

 93.7 

 92.0 



36.0 

 98.0 

 89.3 



49.0 

 9S.3 

 92.7 



55.0 



97.7 

 92.7 



Per cent. 

 30.37 



95.25 



91.87 



July rainfall, 12.65 inches (above nor- 

 mal 10.35 inches). Mean average 

 temperature, July, 82.6° F. 



August rainfall, 0.79 inch (below nor- 

 mal 1.64 inch). Mean average tem- 

 perature, S2.6° F. 



September rainfall, trace (below nor- 

 mal 3.72 inches) . Mean average tem- 

 perature, 76° F. 



September 7-9 



October 5-7 



As the first records at Austin were made about 10 days earlier than 

 were those at Calvert, they serve to show a much greater total increase 

 in the average infestation during August, though the average daily 

 increase in the percentage of infestation agrees very closely in the two 

 localities, being 1.8 per cent at Calvert and 1.9 per cent at Austin. 



