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Improved Steam Gage

Power Required to Start a Train

Treatment of Cholera

Increase of Examiners' Pay

Elevated Railway for Streets

Frye's Buckle

Andrews & Burnham's Carpet Fastening

New Publications

Brown's Self-Closing Governor

Increased Tax Upon Inventors

Experiments with Nitro-Glycerin or Blasting Oil

Another Tax on Genius

Whistles as Signals on Trains

The Right Kind of a Grocery

Sodium Amalgam

An Unpalatable Truth

Collapse of an English Boiler Flue

The Third Lecture of Professor Doremus's Course

Patent Claims

Issued from the U. S. Patent Office

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May 12, 1866

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