The Horizontal Pendulum - pp79 - 80

doi:10.1038/scientificamerican02091878-79

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Medical Progress in 1877 - p80

doi:10.1038/scientificamerican02091878-80

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Is Gravity a Mode of Motion? - p80

doi:10.1038/scientificamerican02091878-80a

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Stick to the Law - pp80 - 81

doi:10.1038/scientificamerican02091878-80b

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Patent Office Employees to be Disgraced - p81

doi:10.1038/scientificamerican02091878-81

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The Mail of the Metropolis - p81

doi:10.1038/scientificamerican02091878-81a

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Heinrich Daniel Ruhmkorff - p81

doi:10.1038/scientificamerican02091878-81b

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Modern Torpedo Warfare - p82

doi:10.1038/scientificamerican02091878-82

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Folding-Door Fireproof Safe - p82

doi:10.1038/scientificamerican02091878-82a

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Smith's Improved Windmill - p83

doi:10.1038/scientificamerican02091878-83

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New Digging Machine - pp83 - 84

doi:10.1038/scientificamerican02091878-83a

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Communications - p84

doi:10.1038/scientificamerican02091878-84

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Making Callipers - p85

doi:10.1038/scientificamerican02091878-85

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Improved Portable Cider Mill - p86

doi:10.1038/scientificamerican02091878-86

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Powell's Improved Cotton Harvester - p86

doi:10.1038/scientificamerican02091878-86a

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The Long-Necked Chelodine - p87

C. Few Seiss

doi:10.1038/scientificamerican02091878-87

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The High School of Kolapore, India - p87

doi:10.1038/scientificamerican02091878-87a

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Whales and Whalebone - pp88 - 89

doi:10.1038/scientificamerican02091878-88

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Beard's Thill Coupling - p89

doi:10.1038/scientificamerican02091878-89

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A Fowl Monstrosity - pp89 - 90

John Michels

doi:10.1038/scientificamerican02091878-89a

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Astronomical Notes - p90

Berlin H. Wright

doi:10.1038/scientificamerican02091878-90

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Wants and Business Inquiries - p92

doi:10.1038/scientificamerican02091878-92

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