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Charges against the Commissioner of Patents - p338
doi:10.1038/scientificamerican07151848-338b
Obtaining White Outlines from any Kind of Paper - p344
doi:10.1038/scientificamerican07151848-344b
Substitute for Glass for Electrical Machines - p344
doi:10.1038/scientificamerican07151848-344c
Curious Effect of Violet Rays upon the Electric Telegraph - p344
doi:10.1038/scientificamerican07151848-344h