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Features

Tempering and Grinding Steel

Spontaneous Combustion—A Warning to Manufacturers

Profusion of Life in the Ocean

Iron Houses

Crawford, the American Artist

A Toad Insulated

Thompson's Life Preserving Seat

Hardening Tallow

Another Trip of the Ericsson

A New Tubular Condenser

The Wheat Fly

Scientific Memoranda—American

Recent Foreign Inventions

Great Engineering Invention

Foreign Scientific Memoranda

Bone Dust

Cleaning Boiler Flues

Iron Wheel Fellies

Improvements in Switches for Railroads

Governor for Steam Engines

Steam Carriages for Common Roads

The Colt Patent in Congress

List of Patent Claims

What our Country Pays for Guano

A Railroad Anecdote

England's Tribute to American Manufacture of Arms

New Plastic Compound for Useful and Ornamental Purposes

Plated Ware

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August 19, 1854

Think Outside the Gift Box