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A New Gas Exhauster Governor

Improved Hose Coupling

Contamination of Drinking Water

The North-Northwest

Pluck and Energy Sufficient Capital for Pioneers

Pah-Gosa Springs, Colorado

Defeat of the Cochrane Patents

Recent American Patents

A Magnetized Watch

Recent Mechanical Inventions

New Cuff Holder

A New Portable Engine

A New Sewer Trap

Amateur Mechanics

New Drag Sawing Machine

Jones' New Press Machine and Process

Miscellaneous Inventions

Machinery for Making Shingles

Scarus Quacamaia, or Great American Parrot Fish

By Daniel C. Beard

The Mara

Ancient Keys

Communications Received - July 12, 1879


  • Departments

    Correspondence - July 12, 1879

  • Business and Personal - July 12, 1879

  • Notes and Queries - July 12, 1879

  • New Books and Publications - July 12, 1879

  • Index of Inventions - July 12, 1879

  • Patents - July 12, 1879

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July 12, 1879

Confronting Common Wisdom