juiyso, 1917 Evaporation from Water and River-Bed Materials 231 



Table IX. — Water temperatures at different depths in evaporation tanks and lake 



o Temperature in instrument shelter. 



UNITED STATES WEATHER BUREAU STANDARD PAN FOR CLASS A STATIONS 



Plate 37, A, shows the United States Weather Bureau standard pan 

 as specified for class A stations. This is also shown as A, figure 3. The. 



