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A Man of Science Gone

Straining Saws by Atmospheric Pressure

Scouring Castings of Iron.--Coating with Zinc

Coal of Recent Formation

Boring in Hard Rocks

Adulterated Food in England

Benefits of the New Steamboat Law

The Patent Office Once More-Defence of the Secretary of the Interior

Military Literature--America Ahead

List of Patent Claims

Lanterns for Lighthouses

Great Ocean Steamers

Durability of Iron Ships

Barlow's Planing Machine.--Erratum

The Yellow Fever

Recent Foreign Inventions

New England Industrial Exhibition

National Agricultural Exhibition

Mechanics Institute

California Minerals

Important to Mechanics.--Woodworth's Planning Machine

Improved Gang Saw Mill

Great Fair of the American Institute

The Woodworth Patent Again

Splendid Cash Prizes!

Reminiscences of the Paris Industrial Exhibition No. 4

Correcting the Mariner's Compass

Improvement in Cotton Gins


  • Letters

    To Correspondents

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November 03, 1855