Band Re-Sawing Machine - p31

doi:10.1038/scientificamerican07151876-31

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Life without Light - p32

doi:10.1038/scientificamerican07151876-32

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The Oracles of Ancient Greece - pp32 - 33

doi:10.1038/scientificamerican07151876-32a

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Cams - p33

doi:10.1038/scientificamerican07151876-33

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Barometric Observations - p33

doi:10.1038/scientificamerican07151876-33a

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The Centennial Exposition - p33

doi:10.1038/scientificamerican07151876-33b

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A New Mechanical Money Box - p34

doi:10.1038/scientificamerican07151876-34

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Trimming and Punching Roofing Slates - p34

doi:10.1038/scientificamerican07151876-34a

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Photo-Chemicals - p34

Edward Dunmore

doi:10.1038/scientificamerican07151876-34b

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Improved Wagon Brake - p35

doi:10.1038/scientificamerican07151876-35

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Improved Railway Rail - pp35 - 36

doi:10.1038/scientificamerican07151876-35a

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Animal Mechanism - p36

doi:10.1038/scientificamerican07151876-36a

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Turning Hard Steel with the Aid of Petroleum as a Lubricant - pp36 - 37

Joshua Rose

doi:10.1038/scientificamerican07151876-36b

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Harmony and Discord with Optical Studies - p37

C. F. Brackett

doi:10.1038/scientificamerican07151876-37

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Improved Pony Planer - p38

doi:10.1038/scientificamerican07151876-38

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Umbrella Supporter - p38

doi:10.1038/scientificamerican07151876-38a

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Chaffin's Improved Hay Fork - p38

doi:10.1038/scientificamerican07151876-38b

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Various Species of Ant Lions - p39

doi:10.1038/scientificamerican07151876-39

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Ice Machinery - pp40 - 41

doi:10.1038/scientificamerican07151876-40

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Recent American and foreign Patents - p41

doi:10.1038/scientificamerican07151876-41a

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New Agricultural Inventions - p41

doi:10.1038/scientificamerican07151876-41b

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New Textile Machinery - p41

doi:10.1038/scientificamerican07151876-41c

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New Chemical and Miscellaneous Inventions - pp41 - 42

doi:10.1038/scientificamerican07151876-41d

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New Household Inventions - p42

doi:10.1038/scientificamerican07151876-42

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New Mechanical and Engineering Inventions - p42

doi:10.1038/scientificamerican07151876-42a

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Communications Received - p44

doi:10.1038/scientificamerican07151876-44

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