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More about Lightning and Its Conductor - p411
doi:10.1038/scientificamerican09081855-411a
Statistics of the New York and Erie Railroad for July - p411
doi:10.1038/scientificamerican09081855-411b
Alarming Encroachment on the Patent Office - p411
doi:10.1038/scientificamerican09081855-411c
Issued from the United States Patent Office - p412
doi:10.1038/scientificamerican09081855-412
Great Trial of Agricultural Machines in France America Victorious - p412
doi:10.1038/scientificamerican09081855-412a
