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Features

The High-Level Street Railways of New York

Counterfeit Coin

Silver Mining in Massachusetts

Formation of Planetary Rings and Satellites

Silver in Art

Artificial Fuel

Improved Automatic Knife Grinder

Vertical Engines and Boilers

School Shops

Astronomical Notes

By Berlin H. Wright

Notes of Patent Office Decisions

Firework Making

Method of Correcting a Leasing Screw

By Joshua Rose

The Glass Ball Caster

The Industrial West

Remains of Gigantic Antediluvians

The Prairie Dog and Its Uninvited Guests

Cooking by Solar Heat

Producing Accurate Spheres

Mexican Flora

Organography, or Vegetable Anatomy

Communications Received

Departments

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    Business and Personal

  • Index of Inventions

  • New Books and Publications

  • Notes and Queries

  • Patents

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June 15, 1878

See the World from a Different Perspective

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