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Features

How to Make a Telephone Call

The Fifty Thousand Dollar Reward for Street Car Propulsion

An Aerial Vessel

Supplemental Colored Ink Fountains for Printing Presses

Marvelously Low-Priced Watches

Corrugated Plate Metallic Lathing

A Current Collector for Dynamos

A Distilling Apparatus for Families

An Improved Relief Valve

The Webb Academy and Home for Ship Builders

The Four-Masted Ship Afghanistan

Interesting Experiments

By F. J. Hillig

Departments

  • Letters

    Correspondence - February 24, 1894

  • Recommended

    New Books and Publications - February 24, 1894

  • Departments

    Recently Patented Inventions - February 24, 1894

  • Business and Personal - February 24, 1894

  • Notes and Queries - February 24, 1894

  • Index of Inventions - February 24, 1894

  • Patents - February 24, 1894

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February 24, 1894

Reanimate Your Brain

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