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Features

Contagion in Milk

A Mediæval Ironclad

An Air Brake Stop Cock

An Improved Car Fender

A Grader and Amalgamator for Separating Precious Metals

A Funeral on the River Spree

Thomas' Car Fender

A Metallic Seal for Envelopes, Etc

Improved Tea and Coffee Strainer

Burnham's 13 Inch Drill Press

The Park Avenue Improvement in New York City

The Glyptodont

Notable and Curious Watches

To Inventors - April 28, 1894

Departments

  • Recommended

    New Books and Publications - April 28, 1894

  • Departments

    Recently Patented Inventions - April 28, 1894

  • Index of Inventions - April 28, 1894

  • Business and Personal - April 28, 1894

  • Notes and Queries - April 28, 1894

  • Patents - April 28, 1894

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April 28, 1894

Confronting Common Wisdom