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Protection from Yellow Fever

America's Industrial Supremacy Assured

New York Academy of Sciences

Cheap Patents Cheapen Goods

The “New Pattern” Blake Crusher

Mechanical Inventions

Simple Burglar Alarm

American Industries.-No. 37

Improved Plant Sprinkler

Improved Pruning Implement

Improvement in Jackscrews

Scissors and Scale Measure

Engineering Inventions

New Lubricator for Steam Engines

Miscellaneous Inventions

Peripatus Capensis

Venus' Girdle

Specters in the Air

By Chas. B Boyle

Communications Received


  • Departments


  • Business and Personal

  • Index of Inventions

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