Volume 12, Issue 9
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Features
American Telegraph Inventor in Europe
Sounding Guard for Vessels
Cow Milking Apparatus
Waterproof Emery Paper
Important Notice
Reform of the British Patent Laws
Pettingell's Pistol
List of Patent Claims
Auricles for the Deaf
New Tanning Process
The U. S. Astronomer
Present to an American Inventor
Benefits of Machinery.--Mechanical Engineers
Removing Incrustations from Culinary Vessels
Harmony of Revelation and Science
Useless Inflated Life Preservers
Origin of Mechanics Institutions
New Brick Machine
Splendid Prizes.--Paid in Cash
Berdan's Mechanical Bakery
Automatic Whistle.--Safety on Railroads
Vergnes' Electro Magnetic Engine
The Annual Address
Atmospheric Forge and Trip Hammer
Oscillating Engines
New Spring Saddle
Water Filter
Carriage Springs
Meeting of the Exhibitors
Inventors' Congress.--Great Enthusiasm!--Six Members in Council!!
Great Exhibition of the American Institute at the Crystal Palace, New York
Sixth Week Continued Close of the Exhibition