Launching of the Great Caisson for the Brooklyn Terminus of the East River Bridge - pp15 - 16

doi:10.1038/scientificamerican07091870-15

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The Disposal of Sewage - pp16 - 17

John Darby

doi:10.1038/scientificamerican07091870-16

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What is Energy? - pp17 - 18

doi:10.1038/scientificamerican07091870-17

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The Butterfly - pp19 - 20

Edward C. H. Day

doi:10.1038/scientificamerican07091870-19

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What Inventors Say - pp20 - 21

doi:10.1038/scientificamerican07091870-20a

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Adulteration of Paints - p21

Henry E. Colton

doi:10.1038/scientificamerican07091870-21

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Sirups for Soda Water - p21

doi:10.1038/scientificamerican07091870-21a

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Editorial Summary - pp21 - 22

doi:10.1038/scientificamerican07091870-21b

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The Progress of Chemistry in 1870 - p23

doi:10.1038/scientificamerican07091870-23

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Steam Road Rolling - p23

doi:10.1038/scientificamerican07091870-23a

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Gas as Fuel - pp23 - 24

doi:10.1038/scientificamerican07091870-23b

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Hydrophobia and Dog Muzzling - p24

doi:10.1038/scientificamerican07091870-24

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Progress of Invention Abroad - p24

doi:10.1038/scientificamerican07091870-24a

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The Stevens Institute of Technology - p24

doi:10.1038/scientificamerican07091870-24b

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Scientific Intelligence - pp24 - 25

doi:10.1038/scientificamerican07091870-24c

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City Railroad Cars - p25

doi:10.1038/scientificamerican07091870-25

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The New York Dock Commission—The Principal Plans Submitted - pp25 - 26

doi:10.1038/scientificamerican07091870-25a

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Answers to Correspondents - p26

doi:10.1038/scientificamerican07091870-26a

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Recent American and Foreign Patents - pp26 - 27

doi:10.1038/scientificamerican07091870-26b

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Official List of Patents - pp27 - 28

doi:10.1038/scientificamerican07091870-27

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Applications for the Extension of Patents - p28

doi:10.1038/scientificamerican07091870-28

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