The Formation Of Geodes With Remarks On The Silicification Of Fossils
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Bibliographic Index of American Ordovician and Silurian Fossils, Volume 1
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Bibliographic Index Of American Ordovician And Silurian Fossils, Volume 92, Issue 2
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Collected Papers, Volume 2
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Notes On An Unusually Fine Slab Of Fossil Crinoids
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A Synops of American Fossil Bryozoa Including Bibliography and Synonymy
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The Structural Features Of The Bryozoan Genus Homotrypa, With Descriptions Of Species From The Cincinnatian Group
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Bibliographic Index Of American Ordovician And Silurian Fossils
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Mineral Resources of Virginia
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Bulletin, Issue 1, Part 1
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Cambrian and Ordovician Deposits of Maryland Volume 7
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Shelled Invertebrates of the Past and Present (Volume Ten of the Smithsonian Scientific Series)
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Shelled Creatures and Geological History the Smithsonian Series Volume Ten
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Smithsonian Scientific Series
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Bibliographic Index Of American Ordovician And Silurian Fossils V2
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Corynotrypa V39: A New Genus Of Tubuliporoid Bryozoa
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The Waverlyan Period Of Tennessee
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The Nettelroth Collection Of Invertebrate Fossils
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Het Vaste Fundament: Leerrede
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Collected Papers, Volume 4...
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Shelled Invertebrates of the Past and Present: Smithsonian Scientific Series, V10
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Shelled Creatures and Geological History
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