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Features

Great War Ships

The Site for the International Exposition of 1892

Position of the Planets for September

An Improved Machine for Bending and Coiling Pipe

Spider Web to Cocoon Making

By Nicolas Pike

A System of Protection from Lightning

Astigmatic Eyepiece for Optical Instruments

An Improved Siphon

An Apparatus for Recording Respirations

An Improved Method of Propelling Sleds

An Improved Reversible Safety Stirrup

The Maccoy Pneumatic Tool

A Powerful Battery

Thomas Corwin Mendenhall

By Marcus Benjamin

The Paris Exhibition

Departments

  • Letters

    Correspondence- August 31, 1889

  • Departments

    Business and Personal- August 31, 1889

  • Recently Patented Inventions- August 31, 1889

  • Notes and Queries- August 31, 1889

  • Index of Inventions- August 31, 1889

  • To Inventors- August 31, 1889

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August 31, 1889

See the World from a Different Perspective

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