A Discredited Theory - p354

doi:10.1038/scientificamerican11041905-354

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One Year's Operation of the Subway - p354

doi:10.1038/scientificamerican11041905-354a

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Mr. Hildenbrand and the Manhattan Bridge Problem - pp354 - 355

doi:10.1038/scientificamerican11041905-354b

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Tunnel Boring in Ancient Palestine - p355

doi:10.1038/scientificamerican11041905-355a

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Science Notes - p355

doi:10.1038/scientificamerican11041905-355b

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Ludlow's First Successful Flight - p356

doi:10.1038/scientificamerican11041905-356

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Test of a Torpedo Shell - pp357 - 358

doi:10.1038/scientificamerican11041905-357

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The Twin-Screw Liner “Amerika” - pp360 - 361

doi:10.1038/scientificamerican11041905-360

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Some Cities of Ancient Egypt - pp362 - 363

doi:10.1038/scientificamerican11041905-362

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Tenacity of Life in Ants - pp363 - 364

Adele M. Fielde

doi:10.1038/scientificamerican11041905-363

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A Street-Sprinkling Curb - p364

doi:10.1038/scientificamerican11041905-364

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An Odorless Gas Stove - p364

doi:10.1038/scientificamerican11041905-364a

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Business ana Personal Wants - p365

doi:10.1038/scientificamerican11041905-365

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