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Science and research. Mineral prospecting. Chemical prospecting for oil becomes more and more important as the war goes on the demand for oil increases. Petroleum engineers call chemical prospecting the first scientific approach to the detection of oil in the earth. The big glass condensers, with wh
Public domain

Science and research. Mineral prospecting. Chemical prospecting for oil becomes more and more important as the war goes on the demand for oil increases. Petroleum engineers call chemical prospecting the first scientific approach to the detection of oil in the earth. The big glass condensers, with wh

United States. Office Of War Information, Feininger, Andreas · 1942-01-01 · photo, print, drawing

From the collection of Library of Congress. Free to download, adapt and use — no permission needed.

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nitrate negativescoloradounited statesjefferson countygolden
Credit lineScience and research. Mineral prospecting. Chemical prospecting for oil becomes more and more important as the war goes on the demand for oil increases. Petroleum engineers call chemical prospecting t. 1942-01-01. United States. Office Of War Information, Feininger, Andreas. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
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