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American Association for the Advancement of Science - p18
doi:10.1038/scientificamerican09271856-18
The Inventor of Purifying Molten Crude Iron without Fuel an American - p21
doi:10.1038/scientificamerican09271856-21
Resignation of the Commissioner of Patents - p21
doi:10.1038/scientificamerican09271856-21a
Great Exhibition of the American Institute at the Crystal Palace, New York - p22
doi:10.1038/scientificamerican09271856-22b
