WIND, TKMPEKATl UK WD EVAPORATION 



211 



It was my privilege to have charge of the station at the Uni- 

 versity of Kansas during the first three seasons of its operation, 

 ami to give personal attention to the taking of data. The first 

 official records were taken on August 7, 1916, just nine days 

 earlier than the establishment of the station at Tribune. The 

 first season comprised US observations, to November 13, at 

 which time the danger of injury to the pan from freezing com- 



TABLE 1 

 Evaporation, air flow, and temperature data 



August, 1916*.... 

 September, 1916. . 



October, 1916 



November, 1916|. 



March, 1917 



April, 1917 



May, 1917 



June, 1917 



July, 1917 



August, 1917 



September, 1917. . 



October, 1917 



November, 1917 . . 



April, 1918 



May, 1918 



June, 1918 



July, 1918 



August, 1918 



EVAPORATION 



8.245 

 7.761 

 5.128 

 2.013 

 5.953 

 5.681 

 5.701 

 8.385 



11.061 

 6.956 

 5.445 

 4.114 

 3.079 

 4.821 

 8.453 

 9.325 

 9.881 



12.020 



AIR FLOW 



4.25 



4.62 



5.03 



6.92 



7.87 



6.61 



3.73 



3.525 



2.83 



2.09 



2.61 



3.645 



3.72 



4.03 



5.2 



2.65 



2.76 



3.42 



TEMPERATURE 



79.19 



67.17 



56.25 



52.4 



44.9 



52.8 



58.2 



71.65 



80.4 



73.57 



69.35 



50.64 



47.4 



48.45 



68.35 



77.45 



77.6 



83.71 



Evaporation in inches per month, air flow average miles per hour. 

 * Twenty-five days. 

 t Twelve days. 



pelled us to close the station. The second season of observation 

 began March 1, 1917, and continued without interruption to 

 November 30; and the third season extended from April 1 to 

 August 31, 1918. The total number of observations taken was 

 526, but two of them were defective, and have been discarded 

 because ice interfered with the measurement of the water level 

 on October 20, 1916. The two days involved in this difficulty 

 have been omitted from consideration in the statistical study. 



