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Features

The High-Level Street Railways of New York

Counterfeit Coin

Silver Mining in Massachusetts

Artificial Fuel

Formation of Planetary Rings and Satellites

Silver in Art

School Shops

Improved Automatic Knife Grinder

Vertical Engines and Boilers

Astronomical Notes

By Berlin H. Wright

Notes of Patent Office Decisions

Firework Making

Method of Correcting a Leasing Screw

By Joshua Rose

The Industrial West

The Glass Ball Caster

Remains of Gigantic Antediluvians

The Prairie Dog and Its Uninvited Guests

Producing Accurate Spheres

Cooking by Solar Heat

Mexican Flora

Organography, or Vegetable Anatomy

Communications Received

Departments

  • Departments

    New Books and Publications

  • Notes and Queries

  • Business and Personal

  • Index of Inventions

  • Patents

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Why Do Facts Fail?

Why Do Facts Fail?

Deconstructing Denial