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Features

Report of the Commission on Patents and Trade Marks

The Relative Cost of Steamship Construction in Europe and America

Report of the Isthmian Canal Commission

Electric Tramways in London

The Direct Combination of Alumina and Oxide of Calcium in the Electric Furnace

Alcohol as a Fuel for Motor Carriages

Shooting at the Clouds

A Simple Portable Acetylene House-Lamp

Curious Knot Formation

New Telephone Meter

A Safety Attachment for Water-Gages

Scotte Traction Engine--Type Shown at the Paris Exposition

Modern Soft-Coal Mining and Handling in the United States

By Henry Hale

The New 12-Inch Naval Gun

Electric Freight Conveyers for Loading and Unloading Vessels

The Third-Rail Equipment of the Manhattan Elevated Railways

IV. Simple Electric Motor

By George M. Hopkins

To Inventors

Departments

  • Departments

    Recently Patented Inventions - December 15, 1900

  • New Books, Etc. - December 15, 1900

  • Notes and Queries - December 15, 1900

  • Index of Inventions - December 15, 1900

  • Business and Personal - December 15, 1900

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