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The New Jet Boat Evolution

The Scientific Meeting at Toronto

The Sewage Disposal Problem

An Improved Road Cart

An Improved Roofing Tank Apparatus

An Improved Blow-Off Cock and Fire Extinguisher

An Improved Drawbridge Gate

An Improved Dumping Car

An Improved Oil Can

Rheostat and Resistance Column

Improved Lock and Shackle for Railway Switches

Launch of the Philadelphia

New Arc Lamp

The Harlem River Aqueduct Tunnel and Its Approaches

Photographic Notes- September 14, 1889

With Mr. Edison on the Eiffel Tower

An Attractive Cheap Dwelling House

The Paris Exhibition


  • Letters

    Correspondence- September 14, 1889

  • Departments

    Business and Personal- September 14, 1889

  • Notes and Queries- September 14, 1889

  • Recently Patented Inventions- September 14, 1889

  • Index of Inventions- September 14, 1889

  • To Inventors- September 14, 1889

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