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Features

Artificial Method of Producing Sapphires

The Invention of the Magnetic Telegraph

Bryson's Corn Husker and Feed Cutter

Clinger & Cremer's Stalk Cutter and Crusher

Comparative Climates

Improved Corn Husker and Feed Cutter

Patent Claims

Recent Patented Improvements

Applying for Patents

Eruption of Vesuvius

Preparing Hair for Stuffing Beds and Cushions

Hardenbergh's Improved Potato Digger

A New Material for Paper

Improved Vice-Anvil

Manufacture of Velvets

The Patent-Office Structure

Life Boats

The Susquehanna and our Health Officers

The Fate of the Patent Bill

Hints for Keeping Cool

Steam Boilers and Furnaces

Horseshoeing

Superiority of American Photographs

Literary Notices

Smith's Patent Belt Coupling

Marking the Corners of Streets

Cure for Burns

Mechanics Inventors, Manufacturers and Farmers

Doyle's Patext Winnower

Cremation

French Pigments

Departments

  • Letters

    Correspondents - July 3, 1858

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Scientific American Unlimited

Scientific American Unlimited