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Poisonous Hats, Gloves, Stockings, and Clothing

A Second Matthew Vassar

Improvements in Sugar Making Wanted

Dust Explosions

A Horse's Motion Scientifically Determined

Improved Education

Public Sanitation

The Pauper Tribe

The Spectroscope in Solar Work

A Wrinkle in Filing

Improved Steam Fire Engine

Astronomical Notes

By Berlin H. Wright

Golden Bird of Paradise

Hairy Prehensile-Tailed Porcupine

American Goods in Brazil

Mechanical Exhibition at Boston

To Inventors

Communications Received

Value of Patents and How to Obtain Them


  • Departments


  • Business and Personal

  • Notes and Queries

  • Index of Inventions

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