The Aerial Cable Railway - p161

doi:10.1038/scientificamerican03171894-161

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The Difficulties and Problems of the Electric Engineeer - p162

doi:10.1038/scientificamerican03171894-162

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Bauxite Mining in Alabama - p162

doi:10.1038/scientificamerican03171894-162a

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Experiments with Telephones - pp162 - 163

doi:10.1038/scientificamerican03171894-162b

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A Post or Pole Hole Boring Machine - p164

doi:10.1038/scientificamerican03171894-164

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Cotton Ginning Machinery at the Fair - p164

doi:10.1038/scientificamerican03171894-164a

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A Ditching Machine for Railway Service - p164

doi:10.1038/scientificamerican03171894-164b

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An Air Lifting Process for Wells - p165

doi:10.1038/scientificamerican03171894-165

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A Work Holder for Grinding Machines - p165

doi:10.1038/scientificamerican03171894-165a

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Some Ancient Reaction Engines - pp165 - 167

W. F. Durfee

doi:10.1038/scientificamerican03171894-165b

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The New Battle Ship Indiana - p167

doi:10.1038/scientificamerican03171894-167

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Emil Greiner's Automatic Pipette - p167

doi:10.1038/scientificamerican03171894-167a

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The Dirigo—The First American Steel Sailing Ship - p168

doi:10.1038/scientificamerican03171894-168

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Tricolor Photography - p169

doi:10.1038/scientificamerican03171894-169

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The Antwerp Exposition - pp170 - 171

doi:10.1038/scientificamerican03171894-170a

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To Inventors - p173

doi:10.1038/scientificamerican03171894-173b

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