Volume 22, Issue 1
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Features
Sugar Making in Louisiana
An Improved Hoisting Pulley Wanted
Ferdinand de Lesseps--Chief Promoter of the Suez Canal
An Ingenious Vent Peg
Boiler Covering
American and English Railway Practice Contrasted
Patent Decision
Girard's "Palier Glissant"
American Railway Management
A Protest Against the Canadian Patent Law
Tubular Boilers and Boiler Explosions
A Happy New Year!
The Suez Canal Not Yet a Failure
The American Institute Prizes Awarded to Steam Engines
The Battle Fields of Science
Scientific Lectures before the American Institute
The Brighter Side
Professor Fiske's Lectures at Harvard
How French Bank Notes are Made
Editorial Summary
What the Newspapers Say
A Novel French Hand Vise
The Woven-Wire Mattress
The Stevens Breech-Loading Rifle
Preservation of Iron
The Bananas and Plantains of the Tropics
Paper for Building
Putting up Stoves
The Magic Lantern
Improvement in Lamp Wicks
Recent American and Foreign Patents
Under this heading we shall publish weekly notes of some of the more prominent home and foreign patents.
Answers to Correspondents
U. S. Patent Office
How to Obtain Letters Patents NEW INVENTIONS Information about Caveats, Extensions, Interferences, Designs, Trade Marks; also, Foreign Patents.
Official List of Patents
Issued by the Untied States Patent Office. For the Week Ending Dec. 14, 1869. Reported Officially to the Scientific American.