Volume 9, Issue 27
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Features
Painter's Colors
Researches on Ethers
Wind Mills in the South
Light and the Eyes
The Darien Ship Canal Expeditions
Hobb's Lock Picked
Reaping Machines
Explosion of a Steamboat Boiler.--The New Law
Remedy for Chilblains
List of Patent Claims
Another Terrible Steam Boiler Explosion
Professor Agassiz
Castors or Foot Rollers
New Railroad Switch
Superintendent of the New York and Erie Railroad
Machine for Softening Flax
Improvement in Cotton Gin Saws
Recent Foreign Inventions
Improved Brick Kiln
Alarm Gauge for Steam Boilers
Spontaneous Combustion
Needful Discoveries
Value of Patented Improvements
The India Rubber Case Again
Starch Patent Extension Refused
Our New Half Volume
The Independent
Telegraph Fire Alarm and Steam Fire Engines
Pure Milk
Consumption of Fuel in Steam Engines with Single and Double Cylinders
Balance Valves for Locomotives
Application of Heat to Produce Steam or Evaporation
Breakage of Mills
Decimal Weights and Measures
Scarcity of Common Sense
Water Wheels--Article 1
Underground Telegraph
To Correspondents
Improvement in Exhausting Steam
Photographs on Steel Plates
Lithographic Photography
Softening of the Brain
Increase in the use of Gutta Percha
Price of Scents
Mechanics
Manufacturers and Inventors