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American Lap-Welded Iron Tubes

Ancient Silver Mine

Gravitation and Velocity

Science in Canada

What is Chemistry?

Will the Atlantic Telegraph Cable operate?

Glucose and Sirup

Recent Patented Improvements

Operation on an Elephant

Screw-mouthed Bottles

Independent Engines and Pumps in Locomotives

Silver and its Uses

New Gas Works

New Inventions

Death of Commodore Perry

Mode of Connecting Telegraph Cables

Death of an Editor

Dr. Livingstone's New African Expedition

Heating Buildings and Ventilation

Business Prospects

Explosion of an Air Chest

Gas Meters

Puddling and Boiling Iron

Stalactites

The Cold Deep Sea

Momentum

The Coming Eclipse

Anilic Acid

Challenge to Inventors of Breech-Loading Guns

Circular Saw Mills—Patent Decision

Proposed Changes in Patent Laws

Glaciers

Science in Sport

Improved Corn Planter

Wright's Apparatus for Feeding Furnaces

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Inventors, Manufacturers, and Farmers

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  • Letters

    Correspondents - March 13, 1858

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