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Improvement in Steam Boilers

Great Western Railway of Canada

Chief Justice of the District of Columbia

New Building Material

Statistics of English Patents in 1854-5

List of Patent Claims

Flying Ants

Restoring Fibrous Iron

Those Prizes Once More

Ancient Indian Mortars

Coal in Turkey

The Blow Fly

Varieties of Speed


The First Time Keeper Made Out of Clay

Overshot and Turbine Water Wheels

Photographs and Stereoscopic Angles.-The True Theory

Prevention of Dust in Railroad Cars

Adams' Patent Implement for Boring Wells

Camp's Patent Chimney Cap

New Paper Material

Fair of the American Institute

Reminiscences of the Paris Industrial Exhibition

The Famous George Law Muskets

Water for Cities

Free Night Schools

Splendid Cash Prizes

Gunpowder, Percussion Powder, and Their Substitutes

Recent Foreign Inventions

Uses of the Telegraph

Atmospheric Air Necessary for Decomposition

Newspapers in the World

Machinists in Cuba

Notes on Sciences and Art

Singular Cause of Leak in a Vessel

Military Uses of the Daguerreotype

Use of Salt in Cooking Vegetables

Artificial Stone


Inventors, and Manufacturers

Ammonia; to Make it in Iron Work

Cast Steel


  • Letters

    To Correspondents

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