Navy to Build “Octopus” Type of Submarine - p22

doi:10.1038/scientificamerican07131907-22

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Electric Power Plants are Responsible - p22

doi:10.1038/scientificamerican07131907-22a

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The Steel Rail Problem - p22

doi:10.1038/scientificamerican07131907-22b

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Contract Awarded for Two “Dreadnoughts” - p22

doi:10.1038/scientificamerican07131907-22c

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Board of Underwriters on Cement Construction - pp22 - 23

doi:10.1038/scientificamerican07131907-22d

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The Grand Prix International Automobile Race - p23

doi:10.1038/scientificamerican07131907-23

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Gasoline Motor Cars Adopted for Branch Line Service on the Union Pacific Railroad - p23

doi:10.1038/scientificamerican07131907-23a

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Science Notes - p23

doi:10.1038/scientificamerican07131907-23b

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A Traction Wheel with Sinusoidal Tread - p24

doi:10.1038/scientificamerican07131907-24

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Sand Painting - p24

doi:10.1038/scientificamerican07131907-24a

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The Riddle of Mars - pp25 - 26

doi:10.1038/scientificamerican07131907-25

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How Linoleums and Oilcloths are Made - pp28 - 30

doi:10.1038/scientificamerican07131907-28

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Some Interesting Tricks - p30

doi:10.1038/scientificamerican07131907-30

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Captive Balloons in the German Army and Navy - pp30 - 31

Alfred Gradenwitz

doi:10.1038/scientificamerican07131907-30a

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Patent Department - p32

doi:10.1038/scientificamerican07131907-32

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Apparatus for Sustaining and Directing Balloons - p32

doi:10.1038/scientificamerican07131907-32a

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The Plug Puzzle - p32

doi:10.1038/scientificamerican07131907-32b

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Railway Track Construction - p32

doi:10.1038/scientificamerican07131907-32c

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An Improved Button Latch - p32

doi:10.1038/scientificamerican07131907-32d

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