Public domain
Erlenmeyer flasks full of liquid and wood samples. Forest Products laboratory, Madison, Wisconsin
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineErlenmeyer flasks full of liquid and wood samples. Forest Products laboratory, Madison, Wisconsin. 1937-01-01. Lee, Russell. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
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Erlenmeyer flasks full of liquid and wood samples. Forest Products laboratory, Madison, Wisconsin
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