“Measuring the dust in the air” a thousand feet above the earth with an Owens dust-counter from an open cock-pit aircraft. In: “The Realm of the Air” by Charles F. Talman, 1931. Library Call Number Library Call Number M/0030 T151r.
Photo Category: Monsters - Drought - Dust Bowl - Instruments
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Added On | 19th October 2015 |
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