The Manufacture of Drain Pipe - p31

doi:10.1038/scientificamerican01191878-31

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Natural History Collections as Educators - p32

doi:10.1038/scientificamerican01191878-32

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Preventing Collisions at Sea - p32

doi:10.1038/scientificamerican01191878-32a

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Carbon Burned in an Electro-Chemical Battery - p32

doi:10.1038/scientificamerican01191878-32b

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Drawing on the Blackboard - pp32 - 33

doi:10.1038/scientificamerican01191878-32c

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Coal Dust Fuel - p33

doi:10.1038/scientificamerican01191878-33

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Government Scientific Work - p33

doi:10.1038/scientificamerican01191878-33a

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To Our Subscribers - pp33 - 34

doi:10.1038/scientificamerican01191878-33b

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The Colorado Mud Volcanoes - p34

doi:10.1038/scientificamerican01191878-34

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The Regnier Electric Light - p34

doi:10.1038/scientificamerican01191878-34a

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Lovegrove's Two-Horse Power Engine - p34

doi:10.1038/scientificamerican01191878-34b

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The Godfrey and Howson Puddling Furnace - pp35 - 36

doi:10.1038/scientificamerican01191878-35

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Communications - p36

doi:10.1038/scientificamerican01191878-36

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Practical Mechanism - pp36 - 37

Joshua Rose, M.E.

doi:10.1038/scientificamerican01191878-36a

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Improved Marine Engine Governor - p38

doi:10.1038/scientificamerican01191878-38

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Improved Fulling Mill - p38

doi:10.1038/scientificamerican01191878-38a

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The Cultivation of Cinchona - pp39 - 40

doi:10.1038/scientificamerican01191878-39

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Water Heater for Baths - p40

doi:10.1038/scientificamerican01191878-40

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A Novel Steam Generator - pp40 - 41

doi:10.1038/scientificamerican01191878-40a

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A New Tide Mill - p41

doi:10.1038/scientificamerican01191878-41

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The Dreadnought Tricycle - pp41 - 42

doi:10.1038/scientificamerican01191878-41a

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An Astonishing Offer - p43

doi:10.1038/scientificamerican01191878-43a

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Communications Received - p44

doi:10.1038/scientificamerican01191878-44

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Wants and Business Inquiries - p44

doi:10.1038/scientificamerican01191878-44a

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The Scientific American - p44

doi:10.1038/scientificamerican01191878-44c

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