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Features

The Painting Machines at the World's Fair

The World's Columbian Exposition

Notes from the Worlds Columbian Exposition Chicago 1893

An Improved Unicycle

The Pearl Button Industry

An Improved Saddle Attachment

A Tool to Drill Conical Recesses

An Automatic Sprinkler to Put out Fires

An Improved Feed-Water Regulator

The Total Solar Eclipse of April 16

Position of the Planets in May

The Columbus Celebration, New York

Experiments with Soap Bubbles

By T. O'conor Sloane

To Inventors - April 29, 1893

Departments

  • Letters

    Correspondence - April 29, 1893

  • Recommended

    New Books and Publications - April 29, 1893

  • Departments

    Recently Patented Inventions - April 29, 1893

  • Notes and Queries - April 29, 1893

  • Business and Personal - April 29, 1893

  • Index of Inventions - April 29, 1893

  • Patents! - April 29, 1893

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