Scientific American Magazine
Volume 100, Issue 22You are currently logged out. Please sign in to download the issue PDF.
Features
Comparison of Steam and Producer-Gas Marine Plants
Defense Against Dirigibles
To Keep the Peace
Station Announcers on Trains
Aeronautics
Engineering
Science
The New Knippels Bridge at Copenhagen
By our English Correspondent
Fluid Compression of Steel Ingots
The New United States Battleship "Mississippi"
The Manufacture of French Postage Stamps
Signaling to Mars with Mirrors
Slipping of Wheels on Curves
Some More Lunar Superstitions
Can-Filling Machine
Patent Department
Poultry-Picking Machine
Self-Cleaning Brush
Departments
Correspondence - May 29, 1909
The Heavens in June
Recently Patented Inventions - May 29, 1909
Patents - May 29, 1909
Index of Inventions - May 29, 1909
