Manufacture of Heavy Guns for U. S. Navy - p127

doi:10.1038/scientificamerican02281891-127

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Meeting of the National Electric Light Association - p128

doi:10.1038/scientificamerican02281891-128

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Position of the Planets in March - p129

doi:10.1038/scientificamerican02281891-129

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A Steam Snow Flow - p130

doi:10.1038/scientificamerican02281891-130

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Long Distance Telephone Concerts - p130

doi:10.1038/scientificamerican02281891-130a

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A Driving Mechanism for Hand Drills - pp130 - 131

doi:10.1038/scientificamerican02281891-130b

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An Improved Rotary Engine - p131

doi:10.1038/scientificamerican02281891-131

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The Jamaica Exhibition - pp131 - 132

doi:10.1038/scientificamerican02281891-131a

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The Chilian Nitrate of Soda Mines and Works - p135

doi:10.1038/scientificamerican02281891-135

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Simple Milling Attachment for Foot Lathes - p135

doi:10.1038/scientificamerican02281891-135a

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Olive Oil Lamp - pp135 - 137

doi:10.1038/scientificamerican02281891-135b

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An American Banyan Tree - p137

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To Inventors - p139

doi:10.1038/scientificamerican02281891-139a

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Experimental Science - p141

Geo. M. Hopkins, By

doi:10.1038/scientificamerican02281891-141a

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The Scientific American Publications for 1891 - p141

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The Scientific American Established 1846 - p142

doi:10.1038/scientificamerican02281891-142

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