Panama Canal to Cost $300,00,00? - p54

doi:10.1038/scientificamerican01251908-54

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The Pennsylvania Tunnel Excavation Beneath Manhattan Completed - p54

doi:10.1038/scientificamerican01251908-54a

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Great Increase in Transatlantic Travel - p54

doi:10.1038/scientificamerican01251908-54b

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The Farman Aeroplane Wins the Deutsch Archdeacon Prize - p54

doi:10.1038/scientificamerican01251908-54c

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Pure Hydrogen from Carbides - p54

doi:10.1038/scientificamerican01251908-54d

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The Patent Office in 1907 - p55

doi:10.1038/scientificamerican01251908-55

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The Pacific Scientific Institution of Honolulu - p55

doi:10.1038/scientificamerican01251908-55a

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International Investigation of the Upper Air - p55

doi:10.1038/scientificamerican01251908-55b

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The Current Supplement - p55

doi:10.1038/scientificamerican01251908-55c

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A Unique Aerial Tramway Used in the Construction of Chicago's Lake Tunnel - p56

doi:10.1038/scientificamerican01251908-56

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A Photographic Method of Producing Bas-Reliefs - pp57 - 58

Alfred Gradenwitz

doi:10.1038/scientificamerican01251908-57

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The Reuterdahl Attack on Our Navy - pp60 - 62

doi:10.1038/scientificamerican01251908-60

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Insects that are Eaten - pp63 - 64

Percy Collins

doi:10.1038/scientificamerican01251908-63

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An Improved Bale Tie - p64

doi:10.1038/scientificamerican01251908-64

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Device for Pulling Spokes - p64

doi:10.1038/scientificamerican01251908-64a

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An Improved Portable Concrete Mixer - p64

doi:10.1038/scientificamerican01251908-64b

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An Apparatus for Electrically Transmitting Sight - p64

doi:10.1038/scientificamerican01251908-64c

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