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  Frank Springer and New Mexico: From the Colfax County War to the...

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  Charles Darwin, Geologist

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  King of the 40th Parallel: Discovery in the American West

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  Discovering Dorothea: The Life of the Pioneering Fossil-Hunter...

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  The Great Turning Point: The Church's Catastrophic Mistake on...

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  Journey to the Ice Age: Discovering an Ancient World

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  The Last Giant of Beringia: The Mystery of the Bering Land Bridge

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  Preserving the Living Past: John C. Merriam's Legacy in the State...