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The Distribution of Light and Heat in New York City

The St. Gothard Tunnel

The Madge and Her Victories

Is Insanity Increasing?

Railroad Inventions Wanted

New Compressed Air Locomotive on the Elevated Railway, New York

Allen's Portable Compression Riveter

Mechanical Inventions

Tile for Illuminating Purposes

Improved Dinner Bucket

Miscellaneous Inventions

Steam Boiler Notes

Centrifugal Extractor for Cane Juice

Improved Pocket Knife

Improved Book Rest

Engineering Inventions

Electrical Magic

The Spotted Amblystome

By C. Few Seiss

Communications Received


  • Departments

    New Inventions

  • Business and Personal

  • Notes and Queries

  • Index of Inventions

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November 19, 1881