Illustration by Comparison - p1

doi:10.1038/scientificamerican08131846-1

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The Independent Door-Lock - pp1 - 2

doi:10.1038/scientificamerican08131846-1a

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Jumble - p2

doi:10.1038/scientificamerican08131846-2

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Science of Mechanics - p2

doi:10.1038/scientificamerican08131846-2a

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Foreign News - p2

doi:10.1038/scientificamerican08131846-2b

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Arithmetical - p2

doi:10.1038/scientificamerican08131846-2c

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Magnetic Telegraph - p2

doi:10.1038/scientificamerican08131846-2d

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The Scientific American - p3

doi:10.1038/scientificamerican08131846-3

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The Soldier's Prayer - p3

M Chandler

doi:10.1038/scientificamerican08131846-3a

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Arts and Trades - p3

doi:10.1038/scientificamerican08131846-3b

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New Inventions - p3

doi:10.1038/scientificamerican08131846-3c

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Railroad Intelligence - p3

doi:10.1038/scientificamerican08131846-3d

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Geological Gleanings in Mississippi - p3

doi:10.1038/scientificamerican08131846-3e

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Be Rational and Consistent - pp3 - 4

doi:10.1038/scientificamerican08131846-3f

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