The Electric Locomotive of the Future - p22

doi:10.1038/scientificamerican07101909-22

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Drydocks for our Biggest Battleships - p22

doi:10.1038/scientificamerican07101909-22a

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The Railways of the World - p22

doi:10.1038/scientificamerican07101909-22b

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The Directive Sense of Bees - p22

doi:10.1038/scientificamerican07101909-22c

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Engineering - p23

doi:10.1038/scientificamerican07101909-23

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Electricity - p23

doi:10.1038/scientificamerican07101909-23a

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Science - p23

doi:10.1038/scientificamerican07101909-23b

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The Guayule Rubber Industry - p24

J. E. Kirkwood

doi:10.1038/scientificamerican07101909-24

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The Standard Electrical Cell—Its use and Its Practical Value - pp25 - 26

Herbert T. Wade

doi:10.1038/scientificamerican07101909-25

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A 5,000-Ton Testing Machine - p26

doi:10.1038/scientificamerican07101909-26

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The Fourth Dimension Simply Explained - p27

doi:10.1038/scientificamerican07101909-27

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Carving Statues by Means of Photography - p28

J. Hammond Smith

doi:10.1038/scientificamerican07101909-28

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The First Flight Exhibition and Tournament of the Aeronautic Society - p29

doi:10.1038/scientificamerican07101909-29

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A Huge Planetarium - p30

George Sherwood Hodgins

doi:10.1038/scientificamerican07101909-30

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Patent Department - p31

doi:10.1038/scientificamerican07101909-31

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Improved Head for Stringed Musical Instruments - p31

doi:10.1038/scientificamerican07101909-31a

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Padlock with Incased Bolt - p31

doi:10.1038/scientificamerican07101909-31b

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Metal Rail Base and Cross Tie for Railway Tracks - p31

doi:10.1038/scientificamerican07101909-31c

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