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Self-Regulating Wind-Wheel, Mock Salmon and more

Concerning Melodeons and their Manufacture

The Last Meeting of the Polytechnic, Miniature Engine and more

Heat Produced by Different Kinds of Fuel

Special Notices, Improved Wagon-Box Setter and more

Recent American Patents

The Goodyear Extension Case

Britain's Potato-Boiler

A Law of Combustion

American Steamships

Preserving Fruit, Patent Claims

Bi-Monthly Reports of the Agricultural Department

The Submarine Cables of the World, A Skillful Colored Mechanic and more


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  • Notes and Queries

  • Patents

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The Essential Guide to the Modern World

The Essential Guide to the Modern World