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Features

Bottomless Pit in the Mammoth Cave

Cotton Bleaching Machine

California Horse Chesnuts

Chough's Polishes

Rhode Island Coal for Gas Manufacture

Cotton Seed for Oil

Important Notice

List of Patent Claims

The Task of Inventors

Fatal Effect of the Breaking of a Circular Saw

The Adulteration of Gold

To Observe Jupiter's Satellites

Bending Timber

Splendid Prizes.--Paid In Cash

The Splitter

Injunction for Imitating Trade Marks

Patent Cases

The Planer

Wilson's Head Rest for Travelers

Reform of Weights and Measures

Steamships for Whaling

Opinion on the Verdict of the Alliance Railroad Accident

The Woodworth Patent Extension

Food--Philosophy--Bread

Rumors From Washington

What is Sheathing Metal?

How Fires Occur

Reaping Machines in California

The Solar Compass Bill

Cast-Iron Sleeper for Railways

Ozone--What is It?

The Moon's Rotation--Completed

Scarlatina

Important Items

Literary Notices

Mechanics

North-West America

Restoring Old Silk Ribbons

Restoring Old Steel Pens

Fire.--Slow Combustion and Quick Combustion

Chuck for Making Bedstead Pins

Manufacturing Ornamental Glass

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    Correspondents

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December 27, 1856

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