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Features

A Sign of the Times

Rise of Water Power in Electrical Supply

By Alton D. Adams

Ratification of the Panama Canal Treaty

The Latest Edison Storage Battery Patent

The Heavens in April - March 28, 1903

By Henry Norris Russell

A Mechanical Street Cleaner

Vessels Made from Quartz and Some of Their Uses

By John Trowbridge

Electricity in Modern Mining Drainage Installations

By Frank C. Perkins

American Railway Slaughters and British Railway Safety

By Frederick Moore

A New Sighting Gear for Naval Guns and Gunnery Signaling Apparatus

By Our London Correspondent.

Safety Car Step

Student's Chair

Self-Sealing Moth Bag

Safety Envelop

Departments

  • Departments

    Science Notes - March 28, 1903

  • Correspondence - March 28, 1903

  • Legal Notes - March 28, 1903

  • Business and Personal Wants - March 28, 1903

  • Recently Patented Inventions - March 28, 1903

  • Index of Inventions - March 28, 1903

  • Notes and Queries - March 28, 1903

  • New Books, Etc. - March 28, 1903

  • Patents - March 28, 1903

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March 28, 1903

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