A Singular Collision - p1

doi:10.1038/scientificamerican07011876-1

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The Gallahue Rotary Engine - p1

doi:10.1038/scientificamerican07011876-1a

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New Investigations on the Earth's Heat - p2

doi:10.1038/scientificamerican07011876-2

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Working Men's Homes.—Sir Sydney Waterlow's London Enterprise - pp2 - 3

doi:10.1038/scientificamerican07011876-2a

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The Farmer's Foes - p3

doi:10.1038/scientificamerican07011876-3

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A Misapplied Testimonial - p3

doi:10.1038/scientificamerican07011876-3a

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The Centennial Exposition - p3

doi:10.1038/scientificamerican07011876-3b

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Improved Hot Blast Boiler Furnace - p4

doi:10.1038/scientificamerican07011876-4

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McMillan's Self-Regulating Gas Burner - p4

doi:10.1038/scientificamerican07011876-4a

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Scenes at the Centennial - p4

doi:10.1038/scientificamerican07011876-4b

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A Novel Cultivator - p4

doi:10.1038/scientificamerican07011876-4c

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Improved Safety Bridge for Railroad Cars - p6

doi:10.1038/scientificamerican07011876-6

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A Novel Device for Sewing on Buttons - p6

doi:10.1038/scientificamerican07011876-6a

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Almond's Improved Drill Chuck - p6

doi:10.1038/scientificamerican07011876-6b

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Nest-Building Fishes - p7

doi:10.1038/scientificamerican07011876-7

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The Scorpions of Egypt - p7

doi:10.1038/scientificamerican07011876-7a

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A New Method of Making Surface Plates - pp8 - 9

Joshua Rose

doi:10.1038/scientificamerican07011876-8

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Decisions of the Court - pp9 - 10

doi:10.1038/scientificamerican07011876-9b

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Recent American and Foreign Patents - p10

doi:10.1038/scientificamerican07011876-10

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New Household Inventions - p10

doi:10.1038/scientificamerican07011876-10a

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New Woodworking and House and Carriage Building Inventions - p10

doi:10.1038/scientificamerican07011876-10b

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New Chemical and Miscellaneous Inventions - p10

doi:10.1038/scientificamerican07011876-10c

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Communications Received - p12

doi:10.1038/scientificamerican07011876-12

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