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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


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


  • Departments

    Notes and Queries

  • New Books and Publications

  • Business and Personal

  • Index of Inventions

  • Patents

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December 07, 1878