Transverse section of bark, microfossil of the oil shale of the Green River formation. 1914.
Dates
Date Taken
1914
Summary
Album Caption: Oil shale of the Green River formation. Locality O. Specimen ?, Box No.II, Slide No.19. Place on the slide, ?. Magnification, x200. Date of photograph, november, 1914. Subject, transverse section of bark. Published in U.S. Geological Survey Professional paper 168, Plate 24, figure 2. 1931.
Summary
Album Caption: Oil shale of the Green River formation.
Locality O.
Specimen ?, Box No.II, Slide No.19.
Place on the slide, ?.
Magnification, x200.
Date of photograph, november, 1914.
Subject, transverse section of bark.
Published in U.S. Geological Survey Professional paper 168, Plate 24, figure 2. 1931.
Image located in U.S.Geological Survey Library, Photographic Collection, Davis, C.A. Collection album, Volume 1, No.119.
Rights
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