Features
New Methods of Measuring Clouds
The Work of Besson at Montsouris Observatory
The World's Production of Gold
How to Make an Ultra-violet Ray Objective
The Nature and Origin of Life
Prof. Schaefer's Inaugural Address of the British Association
Professor Dr. Paul Walden, A 10,000-ton Motor-driven Ship
The Discovery of a New People
Stefansson's Blond Eskimo of Victoria Land
Farm Electric Lighting by Wind Power
A Complete Lighting Plant Installed for $250
A New Principal Examiner
Light Trucks with Pneumatic Tires v. Heavier Vehicles with Solid Tires
Subsidized Motor Trucks
A Jubilee of the Umbrella
Departments
- Letters
Correspondence - September 28, 1912
- Departments
Inventions New and Interesting - September 28, 1912
Recently Patented Inventions - September 28, 1912
The Motor-driven Commercial Vehicle - September 28, 1912
