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Features

A Year's Progress

Strength, Weight, and Fineness of Woven Fabrics

Erastus Brigham Bigelow

The Scientific American for 1880

The Future of Africa

Stamps for Trade Marks

Remarkable Fly Wheel Explosion

A New Telephone

The Duplex Air Compressor

Miscellaneous Inventions

The Climax Safety Hammerless Gun

Agricultural Inventions

Boat-Lowering and Detaching Apparatus

American Industries.--No. 27

Mechanical Inventions

New Car Step

New Stone-Dressing Tool

The Sea Serpent Accounted for

By Daniel C. Beard

Departments

  • Departments

    Business and Personal

  • Notes and Queries

  • Index of Inventions

  • Patents

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December 27, 1879

See the World from a Different Perspective

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