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1by Nadis, Fred, 1957-Subjects “...Science news United States History 19th century....”
Published 2005
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3by Lankford, John, 1934-Subjects “...Astronomy United States History 19th century....”
Published 1997
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4by Parshall, Karen Hunger, 1955-Subjects “...Mathematics Research United States History 19th century....”
Published 1994
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