Improved Spoke Machine - p33

doi:10.1038/scientificamerican01191861-33

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Power of Bodies in Motion - p34

Joseph W. Sprague, By

doi:10.1038/scientificamerican01191861-34

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American Engineers' Association - pp34 - 35

doi:10.1038/scientificamerican01191861-34a

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Foreign Scientific Intelligence - pp35 - 36

doi:10.1038/scientificamerican01191861-35

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Electricity and Some of its Practical Applications - p36

doi:10.1038/scientificamerican01191861-36

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Improvements in Plating Ships of War with Iron - p36

doi:10.1038/scientificamerican01191861-36a

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The Science of Common Things - p37

doi:10.1038/scientificamerican01191861-37

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Leslie's Improvements in Iron Ships - p37

doi:10.1038/scientificamerican01191861-37a

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The Polytechnic Association of the American Institute - pp38 - 39

doi:10.1038/scientificamerican01191861-38

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Column of Varieties - pp39 - 40

doi:10.1038/scientificamerican01191861-39

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Home Prospects - p41

doi:10.1038/scientificamerican01191861-41

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Progress of Naval Architecture—Napoleon's New Iron Frigate - p41

doi:10.1038/scientificamerican01191861-41a

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What we Most Need - pp41 - 42

doi:10.1038/scientificamerican01191861-41b

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Romance of the Steam Engine - p42

doi:10.1038/scientificamerican01191861-42

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Mechanics, Attention—Turning Tools - pp42 - 43

doi:10.1038/scientificamerican01191861-42a

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Can Water be used as Fuel ? - p43

doi:10.1038/scientificamerican01191861-43

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Our Correspondence - pp43 - 44

doi:10.1038/scientificamerican01191861-43a

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Patent Claims - pp44 - 46

doi:10.1038/scientificamerican01191861-44

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Hewitt's Projectile - p48

doi:10.1038/scientificamerican01191861-48

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