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Features

The New Chicago Water Works--the Lake Tunnel Intakes, and Caissons

The Scientific American-Edicion Espanola

Ericsson's Physical Strength

An Unloading Attachment for Cars

A Pocket Ticket Case

An Improved Car Dumping Device

An Improved Seed Drill and Fertilizer Distributer

Improved Device for Sanding Railroad Tracks

The Beaver (Castor Fiber)

A Feat in Photography

How to Make a Simple Electric Telephone Requiring no Battery

Lewis Morris Rutherfurd

The Luminous Fountains at the French Exposition

Departments

  • Letters

    Correspondence- December 14, 1893

  • Departments

    Index of Inventions- December 14, 1893

  • Business and Personal- December 14, 1893

  • To Inventors- December 14, 1893

  • Notes and Queries- December 14, 1893

  • Recently Patented Inventions- December 14, 1893

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December 14, 1889

Complex Causes. Alternative Solutions.