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Features

A New Iron-Clad Turret Ship

Improved Horse Rake, The Atlantic Cable Again

A Safe Gunpowder

Adamas--Soapstone

Jacobs's Mode of Securing Chimneys to Lamps

The London Exhibition

Petroleum for Fuel

Notes on Military and Naval Affairs

Secretary Welles and Our Iron-Clad Navy

Meerschaum

The Patent Law Amendment

Our London Correspondence

Hints to Our Subscribers

Six Good Reasons Why Every Manufacturer, Mechanic, Inventor and Artizan should become a Patron of the Scientific American

What We Ought to do in Relation to Iron-Plated Ships

The End of our Volume

Patent Law Amendments

Arm the Mississippi Forts

A Great Silver Ware Manufactory

Recent American Inventions - June 28, 1862

Patent Claims - June 28, 1862

To Our Friends

To Our Readers

Departments

  • Letters

    Correspondence - June 28, 1862

  • Departments

    Index - June 28, 1862

  • Notes and Queries - June 28, 1862

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June 28, 1862

Confronting Common Wisdom