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Improved Sorghum Evaporator

Recent American Patents

Miscellaneous Summary

Special Notice

The Calorimeter of Boilers

Huntington's Self-Acting Safety-Valve

Dust on Railroads

First Fall Meeting of the Polytechnic

Gas Engines

The English Going Ahead of US in Arms

Concussion of Heavy Guns

The Mission of Machinery


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September 17, 1864

Of Shamrocks and Science

Happy St. Patrick’s Day