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Features

Floating Derricks of New York Harbor

Work and Wages

Cotton Size and Cotton Sizing

Iron Lighthouse for Mexico

Making Knit Cotton Goods to Imitate Wool

Compressed Air in Coal Mining

Improved Portable Engines

Agricultural Inventions

Improved Animal Trap

Improved Medicine Bottle

Improvement in Jugs

New Egg Tongs

The Antiquity of the Spoon

On the Crystallization of Canada Balsam

By Geo. M. Hopkins

Miscellaneous Inventions

New System of Ventilation

One of Nature's Gluttons

By Daniel C. Beard

The Industrial Uses of Fish Skins

The Action of Light on Plants

Chinese Porcelain Vase

Mechanical Inventions

Recent Decisions Relating to Patents, Assignments, Etc.

Departments

  • Departments

    Correspondence

  • New Inventions

  • Business and Personal

  • Notes and Queries

  • Patents

  • Index of Inventions

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February 07, 1880

Complex Causes. Alternative Solutions.