Album caption: Carboniferous Landscape. Franz Unger. Note: This is a photo print of the illustration. Printed on the illustration, "Steinkohlen-Periode. Periode Houillere". Unger, Franz. Ideal Views of the Primitive World in Its Geological and Palaeontological Phases. 1863.
Summary
Album caption: Carboniferous Landscape. Franz Unger.
Note: This is a photo print of the illustration. Printed on the illustration, "Steinkohlen-Periode. Periode Houillere".
Unger, Franz. Ideal Views of the Primitive World in Its Geological and Palaeontological Phases. 1863.
Available in the U.S. Geological Survey Denver Library Photographic Collection, Lee, W.T. Collection.
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