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The Use of Time and Uselessness of Hurry

Sanitary House Warming

The Worcester Mechanics' Fair

Miscellaneous Summary

The Target Experiments at Fortress Monroe

The Mad Stone

Morse's Stovepipe Furnace

The Manufacture of Cartridges

Is Steam a Gas?

The Commissioner of Patents

Patent Claims

A Queer Boiler Explosion


  • Departments


  • New Inventions

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