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Features

Real and Imaginary Speed of Steam Yachts

Shop Rules

A Simple Form of Electric Motor

An Extractor for Stuffing-Box Packings

A Foldable Clothes Drier

The Auxiliary Center Board Steam Yacht Wild Duck

Deep Water Dredging Around New York

Hygienic Horses

Locomotive Explosion

The Twin Screw Steamer Virginia

One Kind of Cam

By A. D. Pentz

Departments

  • Letters

    Correspondence- October 3, 1891

  • Recommended

    New Books and Publications- October 3, 1891

  • Departments

    Recently Patented Inventions- October 3, 1891

  • Index of Inventions- October 3, 1891

  • Business and Personal- October 3, 1891

  • Notes and Queries- October 3, 1891

  • To Inventors- October 3, 1891

  • Patents- October 3, 1891

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October 03, 1891

Complex Causes. Alternative Solutions.