Volume 12, Issue 42
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Features
Increase of Tourists
The Morris Canal
To Restore Writing.--To Dye Straws
Another Mammoth Cave
List of Patent Claims
Issued from the United State Patent Office for the Week Ending June 16, 1857
Notes on Science and Foreign Inventions
How Rain is Formed
The Missouri Lead Mines Again
State Fairs for 1857
Improved Tubular Boiler
Changes in the Patent Office
Canada Railroads and the Great Eastern
States Weights and Measures
Live Fences
Brick Cylinders in Sand for Bridge Piers
Great Iron Viaduct
The Atlantic Cable and the Niagara
Arsenic in Silk
Progress of Railroads.--The Great West
Treating Wood for Violins
Inventor of the Mexican Barometer
The Electro-Magnetic Engine
Comparative Speed of Horses and Oxen
Who Invented the Menai Tubular Bridge?
Correspondents
Important Items
Reyman's Field Fence
Boucherie's System of Preserving Wood
Mechanics
Inventors, and Manufacturers