“Gaging the thirst of the air.” The observer is measuring the depth of water in the 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.
Photo Category: Instruments - Evaporation Pan
Photo Date: 1925 circa
Added On | 19th October 2015 |
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