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Features

Antediluvian Remains

California Coal

Holcomb's Submarine Carriage Way

List of Patent Claims

Halifax Harbor

Iron Ship Knees

Notes on Science and Foreign Inventions

Silk

Syrups

Alloy Resembling Gold

Grain Separator and Scourer

Self-Weighing Carts

American Crucibles and Composition Molds

Grand National Trial of Harvesting Machines

Maryland Reaper Trial

Steam Cultivation

The Triumphs of Engineering

Divining Rods and Lightning Rods

Hollow Walls Again

Setting Artificial Teeth

The Divining Rod--A Theory

The Hoosic Tunnel

Correspondents

Important Items

A Great Dam

A Wonderful Iron

Another Search for Sir John Franklin

Improved Clothes Ironer

Lighting Gas by Galvanism

Mechanics

Patent Tea Kettle

Railroad Celebration

Rotary Knife Cleaner

The Frigate Niagara

The Vanderbilt

Departments

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    June 06, 1857

    Confronting Common Wisdom