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Improved Air Engine, Preservation of the Teeth

A Visit to the Great Volcano of Kilauea

The Military Railroad System of the United States

Miscellaneous Summary

Professor Treadwell on Hooped Cannon

Olmstead's Oil Can

American Machine Tools

The Scientific American for the Ensuing Year

Potatoes in Fat

Extension of Patents--For Whose Benefit They are Granted

A Hint for the Holidays

Aluminum Bronze Bearings

Classical vs. Scientific Education

Patent Claims

Recent English Patents

Recent American Patents

Fogle's Oil Cup


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December 03, 1864