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Features

The Alkali Metals, Potassium and Sodium

The Explosion of High Pressure Gas Cylinders

A New Method of Distributing Oil on Water

An Improved Wagon

An Improved Lathe Attachment

A Fine Yacht Engine

Making Celluloid Stereotypes Etc.

An Electrically Operated Switch

A New Jersey Pick Up Plant

The Bonta Glass Rolling Machine, Glass Grinding and Polishing Machine and Annealing Oven

Photochronography in the Medical Sciences

A Shorthand Typewriter

To Inventors

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    Recently Patented Inventions

  • Business and Personal

  • Notes and Queries

  • Index of Inventions

  • Index

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December 30, 1893

See the World from a Different Perspective

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