Word: sierra
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Dates: during 1910-1919
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...Geological Conference. "The Auriferous Gravels of the Sierra Nevada," by Professor W. Lindgren, at the American Academy of Arts and Sciences, 28 Newbury street, Boston...
...Geological Conference. "The Auriferous Gravels of the Sierra Nevada," by Professor W. Lindgren, at the American Academy of Arts and Sciences, 28 Newbury street, Boston...