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Features

Hammer for Making Iron Plates, Strength of Franklinite Iron

Philadelphia Water Works--Jonval Wheels

Notes on Military and Naval Affairs

Polytechnic Association of the American Institute

Colburn's Protector and Reflector for Glass-Lamp Chimneys

Rats

Capt. Norton and the Scientific American

The Troy Fire and Iron-Proof Safes

The New Iron Steamer Scotia

Progress of Our Iron-Clad Fleet

Inventors Loyal

Employment of Females in Industrial Operations

Giffard's Injectors--The Machine Business in Philadelphia

Recent American Inventions - June 14, 1862

Patent Claims

To Our Readers

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  • Letters

    Correspondence - June 14, 1862

  • Departments

    Notes and Queries - June 14, 1862

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June 14, 1862

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