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Direct Road from New York to New Hampshire - p9
doi:10.1038/scientificamerican09291849-9b
Gratifying Result of an Interesting Operation - p10
doi:10.1038/scientificamerican09291849-10f
To Separate Nickel and Cobalt their Oxides - p11
doi:10.1038/scientificamerican09291849-11d
The Solubility of the Oxides of Iron, Copper and Cobalt by Caustic Potash - p11
doi:10.1038/scientificamerican09291849-11e
Social Importance of the Working Classes - p11
doi:10.1038/scientificamerican09291849-11g
Method of Preventing the Fracture in Glass Chimneys - p12
doi:10.1038/scientificamerican09291849-12k