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Features

The Distribution of Light and Heat in New York City

The Madge and Her Victories

The St. Gothard Tunnel

New Compressed Air Locomotive on the Elevated Railway, New York

Is Insanity Increasing?

Railroad Inventions Wanted

Mechanical Inventions

Allen's Portable Compression Riveter

Improved Dinner Bucket

Tile for Illuminating Purposes

Steam Boiler Notes

Miscellaneous Inventions

Engineering Inventions

Improved Book Rest

Centrifugal Extractor for Cane Juice

Improved Pocket Knife

Electrical Magic

The Spotted Amblystome

By C. Few Seiss

Communications Received

Departments

  • Departments

    New Inventions

  • Business and Personal

  • Notes and Queries

  • Index of Inventions

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Why Do Facts Fail?

Why Do Facts Fail?

Deconstructing Denial