The East River Bridge - pp63 - 64

doi:10.1038/scientificamerican01311874-63

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Indicating Steam Engines - p64

doi:10.1038/scientificamerican01311874-64

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Dr. Henry Draper's Recent Discoveries in Spectroscopic Analysis - p64

doi:10.1038/scientificamerican01311874-64a

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Gail Borden - p64

doi:10.1038/scientificamerican01311874-64b

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Steam on Canals - pp64 - 65

doi:10.1038/scientificamerican01311874-64c

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A Year's Inventive Progress - p65

doi:10.1038/scientificamerican01311874-65

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Proceedings of the Patent Convention - p65

doi:10.1038/scientificamerican01311874-65a

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Psychic Force - p65

doi:10.1038/scientificamerican01311874-65b

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Scientific and Practical Information - p65

doi:10.1038/scientificamerican01311874-65c

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Electro-Plating Balance - p66

doi:10.1038/scientificamerican01311874-66

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The Yama-Mai, or Oak Tree Silkworm - p66

doi:10.1038/scientificamerican01311874-66a

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Hydraulic Engineering Extraordinary - p67

doi:10.1038/scientificamerican01311874-67

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The Canopus Stone - pp67 - 68

doi:10.1038/scientificamerican01311874-67a

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The Silver Mines of Peru - p69

Tames Orton

doi:10.1038/scientificamerican01311874-69

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Improved Patent Candy Cutter - p70

doi:10.1038/scientificamerican01311874-70

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Improved Furnace Bridge Wall - p70

doi:10.1038/scientificamerican01311874-70a

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The Baffle Drill-Proof Safe - p70

doi:10.1038/scientificamerican01311874-70b

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Overhead Steam Cranes for Dock Purposes - pp71 - 72

doi:10.1038/scientificamerican01311874-71

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Decisions of the Courts - p72

doi:10.1038/scientificamerican01311874-72

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Recent American Foreign Patents - pp73 - 74

doi:10.1038/scientificamerican01311874-73

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Answers Correspondents - pp75 - 76

doi:10.1038/scientificamerican01311874-75a

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Communications Received - p76

doi:10.1038/scientificamerican01311874-76

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Canadian Patents - p76

doi:10.1038/scientificamerican01311874-76b

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