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Large Ships

Horse Flesh as Food


Form of Sound Waves

Photography on Ivory

Patent Claims

Recent Patented Improvements

Dudley Observatory—a Row


Facts about Gunpowder

Improved Ore Washer

Purifying Gutta Percha

How to Consume Smoke

Devin's Ring Bolt

Composition for Printer's Rollers

The Patent Office Structure

Foreign Estimation of Inventors

Accidents—their Cause and Prevention

Report of the Commissioner of Patents on Goodyear's Extension Case


Swill Milk—Wise Officials

Goodyear's Patent Extension

Commissioner Holt's Decision

Important to Inventors

Science and Art

Ice Pitchers

Removing Moles and Warts

The Great Rains of 1858

Loane's Self-Acting Car Coupling

Trial of Steam Fire Engines

Rensselaer Polytechnic Institute


Hussey's Cutting Apparatus


  • Letters

    Correspondents - July 10, 1858

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