Filters: Tags: {"type":"collection","name":"illustration images"} (X) > partyWithName: U.S. Geological Survey (X) > partyWithName: Unger, Franz Xaver (X)

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Illustration of Upper Cretaceous landscape. Franz Unger. Album caption: Upper Cretaceous landscape. Franz Unger. Categories: Image; Tags: Illustration Images, Lee, W.T. Collection, photo print Illustration of Devonian Period landscape. Album caption: Devonian Landscape. Franz Unger. Unger, Franz. Ideal Views of the Primitive World in Its Geological and Palaeontological Phases. 1863. Categories: Image; Tags: Illustration Images, Lee, W.T. Collection, photo print Illustration of Eocene landscape. Franz Unger. Album caption: Eocene Landscape. Franz Unger. Categories: Image; Tags: Illustration Images, Lee, W.T. Collection, photo print Illustration of Triassic (Keuper) Landscape. Album caption: Triassic (Keuper) Landscape. F. Unger. Note: This is a photo print of the illustration. Printed on illustration, "Periode Des Keupersandsteins. Periode Du Keuper Marnes Irisees". Unger, Franz. Ideal Views of the Primitive World in Its Geological and Palaeontological Phases. 1863. Categories: Image; Tags: Illustration Images, Lee, W.T. Collection, photo print