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Steam Squirrel Hunting

A Good Sign

Heavy Fly Wheels and Grist Mills

Discovery in Electricity

Lake Superior Iron

Recent Patented Improvements

Difference of Sight and Hearing

Ventilating Mines

How to Raise a Fallen Horse

The Patent Office

Improvement in the Voltaic Pile

Rolling Iron and Steel

Improvement in Building Ships

American Lap-Welded Iron

Cochineal Cultivation in Teneriffe

Inspection of Gas

The Onward March

Country Lectures

Purifying and Filtering Water

The Submarine Railway

Congress and the Patent Office Reports


Artesian Wells in Illinois

Doctors in Beloochistan

Trial of Fire-Arms

Railroad Management

Osage Orange Fences

Feeding Horses

To Prevent Incrustations in Boilers


House-Heating Apparatus

Science in Sport



  • Letters

    Correspondents - April 3, 1858

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