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Features

The Darien Automatic Ventilator, The Use of Diamonds in the Mechanic Arts

Overshot Wheels

By Joseph Glynn

On the Flow of Elastic Fluids Through Orifices or Pipes

“Church of the Good Shepherd” Armsmear, Conn. A Beautiful Monument

The Simultaneous Transmission of Messages Over a Single Wire in Opposite Directions

Artificial Production of the Coloring Matter of Madder

By Reimann

Improvement in Ventilators for Buildings and Railroad Cars

Cutting Glass with Steel—The Magic Diamond

Improvement in Axles for Vehicles

The Sewage Question

The Consumption of Smoke

Draft in Chimneys

The Cornell University

American Silk

The Elasticity, Extensibility, and Tensile Strength of Iron and Steel

Modern Practices in Finance

Editorial Summary

Manufacturing, Mining, and Railroad Items

Recent American and Foreign Patents

New Publications

Applications for Extension of Patents

Answers to Correspondents

Official Lists of Patents

Issued by the United States Patent Office

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  • Business and Personal

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