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Features

Elmer's Machine for Gumming Saws

Dake's Improved Sugar Mill

Invention of the Microscope

Depressions of the Earth

New Remedy for Consumption

Hot Air Engine for Egypt

Patent Claims

Uses of the Potato

Recent Patented Improvements

Cotton Mills in Saxony

Inter-Oceanic Canal to the Pacific

Successful Copper Mining in Australia

A New Gnomon

A Pleasant Testimonial

Dialing

Improved Coal-Burning Locomotive

Wonders of Photography

La France's Improved Throttle Valve

Machinery Wanted

A Good Chance for Inventors

Extension of Patents by the Commissioner and by Congress

The Agricultural Division of the Patent Office

Groodyear's India Rubber Extension Case

What shall we do About Prizes?

Saleratus and Cream of Tartar in Bread

Sulphurous Acid

The Duration of Man's Life—A New Idea

Burning of the Dead

Drawing Iron

Mechanics

Natcher's Millstone Dress

The British Post Office

Habits of Grasshoppers

Douslass' Railroad Car Spring

The Loss of the Ava

Departments

  • Letters

    Correspondents - June 19, 1858

  • Recommended

    Literary Notices - June 19, 1858

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