Manual of the mosses of North America
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Contributions to the Fossil Flora of the Western Territories: Cretaceous Flora, Part 1
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Contributions to the Fossil Flora of the Western Territories
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The Flora of the Dakota Group, a Posthumous Work
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Untersuchungen �ber Die Torfmoore Im Allgemeinen: Mit Bemerkungen Des Oeconomie-Commissions-Raths Dr. C. Sprengel Und Des Hofraths Lasius
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Directions Pour L'exploitation Des Tourbières Dans La Principauté De Neuchâtel Et Valangin...
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The Pal�ontological Report: As Prepared for the Geological Report of Kentucky and Published in vol. 3
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Contributions To The Fossil Flora Of The Western Territories: The Cretaceous Flora, Volume 6, Part 1
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Description of Coal Flora of the Carboniferous Formation in Pennsylvania and Throughout the United States, Volumes 1-2
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Directions Pour L'exploitation Des Tourbières Dans La Principauté De Neuchâtel Et Valangin...
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Manual of the Mosses of North America
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Contributions to the Fossil Flora of the Western Territories
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Directions Pour L'exploitation Des Tourbières Dans La Principauté De Neuchâtel Et Valangin... (French Edition)
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Description of Coal Flora of the Carboniferous Formation in Pennsylvania and Throughout the United States, Volumes 1-2
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Description of Coal Flora of the Carboniferous Formation in Pennsylvania and Throughout the United States
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Letters Written from America 1849–1853
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Report On Fossil Flora
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On The Age Of The Lignitic Formations Of The Rocky Mountains
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Description of Coal Flora of the Carboniferous Formation in Pennsylvania and Throughout the United States, Volumes 1-2
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Lettres Ecrites D'Amerique...
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Description Of Coal Flora V1: Of The Carboniferous Formation In Pennsylvania And Throughout The United States
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The Fossil Plants of the Coal Measures of the United States: With Descriptions of the New Species, in the Cabinet of the Pottsville Scientific Association.
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Contributions to the fossil flora of the western territories
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Report On the Geology of Vermont: Descriptive, Theoretical, Economical, and Scenographical; Volume 2
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Quelques Recherches Sur Les Marais Tourbeux En G�n�ral...
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Description of Coal Flora of the Carboniferous Formation in Pennsylvania and Throughout the United States: [Additions and Corrections of the First and Second Volumes With Plates Additional to Atlas
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Musci Boreali-Americani Quorum Specimina Exsiccata
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On Fucoides in the Coal Formations
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On The Origin And Formation Of Praries
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