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Protection from Yellow Fever

America's Industrial Supremacy Assured

New York Academy of Sciences

Cheap Patents Cheapen Goods

Mechanical Inventions

The “New Pattern” Blake Crusher

Simple Burglar Alarm

American Industries.-No. 37

Improved Pruning Implement

Engineering Inventions

Scissors and Scale Measure

Improvement in Jackscrews

Improved Plant Sprinkler

Miscellaneous Inventions

New Lubricator for Steam Engines

Peripatus Capensis

Venus' Girdle

Specters in the Air

By Chas. B Boyle

Communications Received


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  • Index of Inventions

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April 03, 1880

The Antidote to Anti-Intellectualism