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Description
Gaging the thirst of the air. The observer is measuring the depth of water inthe evaporation pan with a graduated glass tube (burette.)In: The Realm of the Air by Charles F. Talman, 1931. Library Call Number M/0030 T151r. (Image credit: U. S. Forest Service)
Credit
U. S. Forest Service
Display Date
1925 circa
Collection
Weather Service
Keywords
Instruments
Evaporation Pan