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The Torpedo Vessel, Destroyer

A Remarkable Bank Robbery.-Scientific Safe-Guards Neglected

Steam from Petroleum

Another New Electric Light

A Grand World's Fair in New York

A Steam Juryman

Patent Rights, and Who Oppose Them

The Motion of a Wagon Wheel

The Paris International Patent Congress

A New Gas Regulator

Combined Traction Engine and Steam Fire Engine

Van Rennes' Caloric Engine and Pump

The Watson Pump

Locomotive for the Metropolitan Elevated Railway

Pipe Wrench and Cutter

Russian Pottery

New Mortising Machine

Drilling Square Holes

Astronomical Notes

By Berlin H. Weight

Some Modifications of the Microphone and Telephone

By Geo. M. Hopkins

The Rockport Granite Quarries

Communications Received

To Inventors


  • Departments


  • Business and Personal

  • Notes and Queries

  • Index of Inventions

  • Patents

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