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Features

Action of Light on Muscular Fiber

The Zodical Light

Sendzimir's Submarine Thoroughfare

Letters Carried by the Mails

Caution

Price of Post Office Orders

Complimentary Notice

Remedial Agents--Calomel

Artichokes

Instability of the Earth

More on the Speed of Mill Stones

List of Patent Claims

Combined Steam--Wethered System

The Divining Rod Again

Horse Power of Engines

Mammoth Cave--The Bottomless Pit

Contagion and Quarantine

Shot Manufacture

Patented Articles and the Pedler Laws

Backlash

Milk as a Manufacturing Ingredient

Broughton's Sash Fastener

Iron Architecture

Exhibition of the Metropolitan Mechanics' Institute, Washington, D. C

The Adriatic

Explosion of the Locomotive Hecla--Its construction

Correspondents

Lowering Boats at Sea

Mechanics

Inventors, and Manufacturers

Domes on Steam Boilers

Sugar Gunpowder

Departments

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    April 04, 1857

    Confronting Common Wisdom