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Scientific American Magazine Vol 42 Issue 14

Scientific American Magazine

Volume 42, Issue 14

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Features

America's Industrial Supremacy Assured

Protection from Yellow Fever

Cheap Patents Cheapen Goods

New York Academy of Sciences

The “New Pattern” Blake Crusher

Mechanical Inventions

Simple Burglar Alarm

American Industries.-No. 37

Improvement in Jackscrews

Engineering Inventions

Scissors and Scale Measure

Improved Pruning Implement

Improved Plant Sprinkler

New Lubricator for Steam Engines

Miscellaneous Inventions

Venus' Girdle

Peripatus Capensis

Specters in the Air

Chas. B Boyle

Communications Received

Departments

Correspondence

Index of Inventions

Business and Personal