Siphons - p399

doi:10.1038/scientificamerican06251881-399

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Attractive Suburban Residences - p399

doi:10.1038/scientificamerican06251881-399a

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Printing Ink - p400

doi:10.1038/scientificamerican06251881-400

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The Problem of Healthy Water - pp400 - 401

doi:10.1038/scientificamerican06251881-400a

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George Stephenson - p401

doi:10.1038/scientificamerican06251881-401

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Two Recent Boiler Explosions - p401

doi:10.1038/scientificamerican06251881-401a

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Concentrating or Storing up Electricity - pp401 - 402

doi:10.1038/scientificamerican06251881-401b

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Novel Device for Watering Animals - p403

doi:10.1038/scientificamerican06251881-403

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Steam Tugboat Explosion - p403

S. N. Hartwell

doi:10.1038/scientificamerican06251881-403a

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Velocipede Carriage - p403

doi:10.1038/scientificamerican06251881-403b

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Miscellaneous Inventions - p404

doi:10.1038/scientificamerican06251881-404

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Mechanical Inventions - p405

doi:10.1038/scientificamerican06251881-405a

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New Fastener for Grain-Car Doors - p406

doi:10.1038/scientificamerican06251881-406

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Storing of Electricity - pp406 - 407

doi:10.1038/scientificamerican06251881-406a

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The Slender Dragon Fly - pp407 - 408

doi:10.1038/scientificamerican06251881-407

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Natural History Notes - p408

doi:10.1038/scientificamerican06251881-408

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Agricultural Inventions - p408

doi:10.1038/scientificamerican06251881-408a

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