Scientific American Magazine
Volume 28, Issue 11You are currently logged out. Please sign in to download the issue PDF.
Features
Improved Hot-Pressing Machine
Invertebrate Men
The Knowledge of the Truth
Foul Air Signal
Poisonous Air in Schools and Factories
Practical Results of the Eight Hour Plan in New York
Scientific and Practical Information
Colburn's Theory and the Boiler Explosion at Pittsburgh
The King Penguin and the Australian Bustard
Sectional Life Boat
Elastic Washer
Phosphor-Bronze Tweers
Odd Materials for Paper Making
Steam Reaper and Mower
Improved Grain Cleaner
Bridge Over the Missouri River, Near Leavenworth, Kansas
Recent American and Foreign Patents
Answers to Correspondents
Communications Received
Departments
Correspondence - March 15, 1873
New Books and Publications - March 15, 1873
Business and Personal - March 15, 1873
Notes and Queries - March 15, 1873
Index of Inventions - March 15, 1873
