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Features

Acoustic Properties and Resonance of Buildings

An Excavator for Use on River Banks, Etc.

Swamp Music

An Improved Car Fender

"Dry Cell" Medical Batteries

Utilizing the Water Power of Niagara Falls

The Harmless Smoker

Decisions Relating to Patents

The Great Chicago Canal

The Metropolitan Club

The United States Ram Katahdin

The Training of Zebras

To Inventors - October 20, 1894

Communications Received

Departments

  • Recommended

    New Books and Publications - October 20, 1894

  • Departments

    Recently Patented Inventions - October 20, 1894

  • Business and Personal - October 20, 1894

  • Index of Inventions - October 20, 1894

  • Notes and Queries - October 20, 1894

  • Patents - October 20, 1894

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October 20, 1894

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