Improvements in the Cable Railway of the New York and Brooklyn Bridge - p31

doi:10.1038/scientificamerican07211888-31

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Salida Springs and Mines, Zirconia Minerals, and more - p32

doi:10.1038/scientificamerican07211888-32

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Hiram Sibley - p33

doi:10.1038/scientificamerican07211888-33

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The Projected Tunnel between France and England - p34

doi:10.1038/scientificamerican07211888-34

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A Safety Seal for Checks, Bonds, Etc - p35

doi:10.1038/scientificamerican07211888-35

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An Improved Nut Lock for Valves - p35

doi:10.1038/scientificamerican07211888-35a

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An Improved Drawing Instrument - p35

doi:10.1038/scientificamerican07211888-35b

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A Waterproof Lining for Cellars - pp35 - 36

doi:10.1038/scientificamerican07211888-35c

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An Improved Wrench - p36

doi:10.1038/scientificamerican07211888-36

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New Chromatrope - p36

doi:10.1038/scientificamerican07211888-36a

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Temminck's Chelydra - p38

doi:10.1038/scientificamerican07211888-38

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Simple Experiments in Physics - p41

M. Hopkins

doi:10.1038/scientificamerican07211888-41

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Tire Furnace - p41

doi:10.1038/scientificamerican07211888-41a

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Simple Apparatus for Illustrating Newton's Second Law - p41

doi:10.1038/scientificamerican07211888-41b

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Engineering Invention - p42

doi:10.1038/scientificamerican07211888-42

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Agricultural Inventions - p42

doi:10.1038/scientificamerican07211888-42a

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Miscellaneous Inventions - p42

doi:10.1038/scientificamerican07211888-42b

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To Inventors - p43

doi:10.1038/scientificamerican07211888-43

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