Volume 21, Issue 4
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Features
Overshot Wheels
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
Cutting Glass with Steel—The Magic Diamond
Improvement in Ventilators for Buildings and Railroad Cars
Improvement in Axles for Vehicles
The Cornell University
The Consumption of Smoke
The Sewage Question
Draft in Chimneys
The Elasticity, Extensibility, and Tensile Strength of Iron and Steel
American Silk
Modern Practices in Finance
Editorial Summary
New Publications
Applications for Extension of Patents
Recent American and Foreign Patents
Manufacturing, Mining, and Railroad Items
Official Lists of Patents
Issued by the United States Patent Office