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Railroad Obstructions

Improved Rotary Stone-Cutting Machine.--Fig. 1

Injury to the Fruit

Ohio and Indiana Railroad

Explosion of a Locomotive

Recent Foreign Inventions

Great Steamship Accident

Wheeling Bridge.--Explosions

Death from Using Chloroform

Iron Steamships for the Cunard Line

Ale in London

Discoveries in Africa

Great Discovery for Tobacco Smokers

Challenge to American Shipbuilders

The City of Liverpool

Illuminating Light Houses

Woodworth's and Parker's Renewal of Patents

The Municipal Telegraph--Who was the First Inventor

Geology

The Fire Annihilator Gun

Improved Boiler Front

Improved File Cutting Machine

Improved Shears.--Fig. 1

Improvement in Fire Engines

Improvement in Windows

Iron Drill

Machine for Making Paper Bags

Port Monaies

Ultramine

Railroad Track Cleaner

Stone Cutting Machine

Salt

Is Alcohol a Poison?

New York Engineers Institute

No Extension of Patents--Reform the Patent Laws

Page's Electro-Magnetic Engine--A Misrepresentation

An Alum Spring

The Fire Annihilator Trial

The Search for Sir John franklin

Russia Iron--Patents for Introducing Inventions

Ventilation of Ships

List of Patent Claims

Mystery of the American Lakes

Blowers for Furnaces

To Correspondents

Inventors and their Models

Literary Papers

An Important Paragraph

Agricultural Science

Remarkable Cave

Unique Piece of Jewelry

Exploration of the Sources of the Red River

Economy of Water and Steam Power

Bone Dust for Crops

Atomic Number and Equivalent in Chemistry

On Boilers.--No. 20

Cultivation of the Vine in Ohio

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    April 24, 1852

    See the World from a Different Perspective

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