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An Instrument for Examining the Eye

Breech-Loading Firearms

Hydrophobia Signs

Important to Inventors

Hydraulic Cements

New Corn and Cane Cutter

Only One Hundred and Forty Cents!

Death of an Eminent Man

Kahnweiler's Pipe Joint

Loss of Fuel in Furnaces

To the Postmasters of the United States

Watchmaking by Machinery


The Helypsometer

Extraction of Gold from Dross

Steam on Canals

Gaslight on Cars and Boats

Hoke's Improved Marking and Winding Square

Trial of Breech-Loading Carbines

The Commissioner of Patents

Valuable Hints to our Readers

New Prospectus

The Potato Rot—Its Cause and Cure


  • Letters

    Correspondents - August 28, 1858

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