Scientific American Magazine
Volume 101, Issue 21You are currently logged out. Please sign in to download the issue PDF.
Features
The Limit of Rapid Transit
Acceleration of Long-Distance Express Service
The New Fourteen-Inch Army and Navy Guns
The New British and German “Dreadnoughts”
Purity of Catskill Water Supply
The Other Half of the Cullinan
Electricity
Science
Engineering
A “Dreadnought” of 1863
Something New in Concrete Block Making
Power Indicator for Internal-Combustion Engines
The Solar and Lunar Eclipses of 1909
Why Watch Springs Break
Railway Motor Cars
Another Evil of Deforestation
How Lemon Oil Is Made
Artillery for Airship Attack
Wireless Communication with Balloons
The Wellcome Tropical Research Laboratories
An Improved Steam Trap
A New Grain Bin Construction
Patent Department
Oddities in Invention
Combined Timer and Distributer for Internal-Combustion Engines
Departments
Correspondence
Recently Patented Inventions
Notes and Queries
Index of Inventions
Patents
New Books, Etc.
