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Improved Cider Mill

“Vacuum” and the Indicator

By John T Hawkins

Miscellaneous Summary

The Electric Light

The Second Lecture of Professor Doremus's Course

New Publications

Jeanne's Pipe

“Hot Engineers”

Agricultural Exhibition in Brazil

Ill Ventilated Over Crowded Ships

City Reformers

Patching Engines and Boilers

Modern Marine Engineering

Nitro-Glycerin-the Cause of Its Premature Explosion

By Charles A Seely

Special Notices

Patent Office

Patents Granted for Seventeen Years

American Enterprise in China

Patent Claims

Issued from the US Patent Office

To Our Readers

Patent-Office Decisions

Bugbee's Crutch


  • Departments


  • New Inventions

  • Notes and Queries

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May 05, 1866

Of Shamrocks and Science

Happy St. Patrick’s Day