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A Trio of One Thousand Horse Power Boilers

A National Department of Science

Present Status of the Apprenticeship System

A Novel Wrench

Method of Measuring the Speed of Camera Shutters

A Bicycle frame Reinforce

A Vehicle Running Gear Attachment

Compressed Air Motor on the Elevated Railroads, New York

Capture of a fifty Foot Whale in Puget Sound, Washington

The Brambel Rotary Engine

The Training of Horses

To Inventors - January 30, 1897


  • Recommended

    New Books and Publications - January 30, 1897

  • Departments

    The Heavens for February 1897

  • Recently Patented Inventions - January 30, 1897

  • Index of Inventions - January 30, 1897

  • Business and Personal - January 30, 1897

  • Notes and queries - January 30, 1897

  • Patents - January 30, 1897

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