Frank Hall Knowlton

Fossil Wood and Lignite of the Potomac Formation

• Author(s): Frank Hall Knowlton

• Categories: Lignite

• Type: Book
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• Published: 1889
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• Publisher: Unknown

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Flora of the Denver and Associated Formations of Colorado, by Frank Hall Knowlton. [U.S. Geological Survey Professional Paper 155.].

• Author(s): United States. Congress. House

• Type: Book
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• Published: 1928
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• Publisher: Unknown

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...Flora of the Montana Formation, by Frank Hall Knowlton

• Author(s): Frank Hall Knowlton

• Type: Book
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• Published: 1900
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• Publisher: Unknown

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Report of the National Museum

• Author(s): United States National Museum

• Categories: Science

• Type: Book
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• Published: 1896
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• Publisher: Unknown

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Catalogue of the Columbian College in the District of Columbia

• Author(s): Columbian College in the District of Columbia

• Type: Book
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• Published: 1893
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• Publisher: Unknown

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