Sugar Making in Louisiana
An Improved Hoisting Pulley Wanted
An Ingenious Vent Peg
Ferdinand de Lesseps--Chief Promoter of the Suez Canal
American and English Railway Practice Contrasted
Girard's "Palier Glissant"
A Protest Against the Canadian Patent Law
American Railway Management
The American Institute Prizes Awarded to Steam Engines
The Suez Canal Not Yet a Failure
Tubular Boilers and Boiler Explosions
A Happy New Year!
Scientific Lectures before the American Institute
Professor Fiske's Lectures at Harvard
The Battle Fields of Science
The Brighter Side
What the Newspapers Say
How French Bank Notes are Made
A Novel French Hand Vise
The Stevens Breech-Loading Rifle
The Woven-Wire Mattress
Preservation of Iron
The Bananas and Plantains of the Tropics
Paper for Building
The Magic Lantern
Putting up Stoves
Improvement in Lamp Wicks
Answers to Correspondents
Recent American and Foreign Patents
Under this heading we shall publish weekly notes of some of the more prominent home and 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.
U. S. Patent Office
How to Obtain Letters Patents NEW INVENTIONS Information about Caveats, Extensions, Interferences, Designs, Trade Marks; also, Foreign Patents.
Correspondence- January 1, 1870
New Books and Publications- January 1, 1870
Business and Personal- January 1, 1870