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Features

The Sawyer-Man Electric Lamp

Ventilation of Vessels

The Wastage of Carbon in Electric Lamps

The Utilization of Petroleum

A Trade Mark Decision

Alum in Baking Powders

The Largest Cash Vault in the World

The Fusing of Carbon

Increasing Trade with Chili

American Contributions to Modern Artillery

Valvoline

Car Painting

By D. D. Robertson

A New Lamp Extinguisher

New Trunnion and Trimmer

New Time-Indicating Night Lamp

An Improved Roofing

Paris Exhibition--Facade of Austria and Hungary

The Common Jacana

American Institute Fair

Astronomical Notes

By Berlin H. Wright

To Inventors

Communications Received

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  • Index of Inventions

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December 07, 1878

See the World from a Different Perspective

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