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[Article]

The first century of the republic. (Fifteenth paper.) Scientific progress. I.–The exact sciences. (Concluded.)

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19th century Benjamin Franklin Charles S. s Chemistry Electricity Experiments Heat Henry s History John William Draper Joseph s Lewis M. s Light Microscopy Photography Scientists Spectrum analysis United States Zoology

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The first century of the republic. (Fourteenth paper.) The progress of the exact sciences.

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January 1876

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