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Traction Engines

Improved Hoisting Apparatus

Commissioner Holloway on Fire-Arms

Break-Down of an English Turret Ship

Recent American Patents

Professor Morgan's Flak of Preserving Meat

Special Notices

Chase's Coal-Scuttle

Cheap Meals for Workmen

The Smithsonian Institution

Manufacture of Pianos

Chipman's Railway Washing Machine

Scrap-Iron Forgings

Patent Law Discussion

Valuable Experiments in Working Steam

To Our Readers

Patent Claims

Trial Trip of the Sacramento.

Patents Granted for Seventeen Years!

Rates of Advertising

The Cheapest Mode of Introducing Inventions

Valuable Work for Inventors Patentees and Manufacturers

Improved Water Pressure Wheel, Expansion Gear on Locomotives


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  • New Books and Publications

  • Notes and Queries

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