Volume 14, Issue 20
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Features
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
Increased Tax Upon Inventors
Experiments with Nitro-Glycerin or Blasting Oil
Brown's Self-Closing Governor
Another Tax on Genius
Whistles as Signals on Trains
The Right Kind of a Grocery
Sodium Amalgam
Collapse of an English Boiler Flue
An Unpalatable Truth
The Third Lecture of Professor Doremus's Course
Patent Claims
Issued from the U. S. Patent Office