The Park Avenue Improvement in New York City — The Temporary Harlem River Bridge and the Moving of the Motthaven Station - p289

doi:10.1038/scientificamerican05121894-289

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The Rich and the Poor - pp290 - 291

doi:10.1038/scientificamerican05121894-290

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An Improved Steam Actuated Valve - p292

doi:10.1038/scientificamerican05121894-292

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A Widow Sash Fastener - p292

doi:10.1038/scientificamerican05121894-292a

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An Efficient Heating Gas Burner - p292

doi:10.1038/scientificamerican05121894-292b

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A High Windmill - pp292 - 293

doi:10.1038/scientificamerican05121894-292c

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The Bicycle upon Rails - p293

doi:10.1038/scientificamerican05121894-293

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Theodor Billroth - pp293 - 294

doi:10.1038/scientificamerican05121894-293a

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A Device Enabling the Typewriter to See and Read Work as it is Written - p294

doi:10.1038/scientificamerican05121894-294

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The Centrifugal Bowling Alley - pp297 - 298

A. E. Beach

doi:10.1038/scientificamerican05121894-297

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An Improved Boiler Tube Expander - p298

doi:10.1038/scientificamerican05121894-298

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Righthandedness and Lefthandedness of Sight - pp298 - 299

doi:10.1038/scientificamerican05121894-298a

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To Inventors - p301

doi:10.1038/scientificamerican05121894-301

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