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Features

Curious Chemical Explosion

Humiston's Candle Machine

Caution to Files, Mosquitoes Roaches &C

Permanent Way of Railroads

The Menal Tubular Bridge

Rezoil

List of Patent Claims

Notes on Science and Foreign Inventions

Expansion of Cast Iron in Solidifying

Compasses on Iron Ships

Glue in Bones

Gun Igniters

Micro-Geology

Toy Balloons

Improved Steam Gage

Wrought Iron Cars

Shaw's Pendulous Churn

The New Cent

Artificial Sapphires and Rubies

Electro-Magnetism as a Motive Power

Water of Artesian Wells

The Frigate Niagara--New York Regatta--George Steers

Inventors and Inventions

Reckless Destruction of Property

Sphygmoscope

Western Grain

The Mental Faculties and Phrenology

Cremona Violins

Gum and Starch

Correspondents

The Comet

Galvanic Gas Igniter

Mechanics

Departments

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    June 13, 1857

    Confronting Common Wisdom