Pipe Galleries in the New Subway - p66

doi:10.1038/scientificamerican01201906-66

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We Should Use the Metric System - p66

doi:10.1038/scientificamerican01201906-66a

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Alternative Schemes for the Panama Canal - p66

doi:10.1038/scientificamerican01201906-66b

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Electro-Technical Industries - pp66 - 67

doi:10.1038/scientificamerican01201906-66c

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Some Costly Eggs - p67

Arthur H. J. Keane

doi:10.1038/scientificamerican01201906-67

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Science Notes - p67

doi:10.1038/scientificamerican01201906-67a

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Floating Depot for Coaling Warships - p68

Day Allen Willey

doi:10.1038/scientificamerican01201906-68

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Proposed Excavation of the Panama Canal by Floating Dredges - pp68 - 70

doi:10.1038/scientificamerican01201906-68a

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A Rational Method of Cooling Gas-Engine Cylinders - pp70 - 71

S. M. Howell

doi:10.1038/scientificamerican01201906-70

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Bromelia Fiber - p71

Charles Richards Dodge

doi:10.1038/scientificamerican01201906-71

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A Chair Designed for the Prevention of Seasickness - p72

doi:10.1038/scientificamerican01201906-72

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A New Composing Machine - p73

doi:10.1038/scientificamerican01201906-73

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Historical Photograph from the Sea of Japan - pp74 - 76

doi:10.1038/scientificamerican01201906-74

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Improved Cushion Sole for Shoes - p76

doi:10.1038/scientificamerican01201906-76

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An Improved Form of Telephone Instrument - p76

doi:10.1038/scientificamerican01201906-76a

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Clothes-Line Support - p76

doi:10.1038/scientificamerican01201906-76b

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Adjustable Window Ventilator - p76

doi:10.1038/scientificamerican01201906-76c

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Business and Personal Wants - p78

doi:10.1038/scientificamerican01201906-78

PDF (304 KB)