The "Cement Gun"
Plaster Work Done With a Hose
Features
An Appreciation from Connecticut, Preserve Your Papers; They are of Permanent Value and more
The Geological Society of America
The Twenty-fourth Annual Meeting Described
Watching for and Preventing Forest Fires
How the Forest Service is Protecting Our Standing Timber
Two Novel French Aeroplanes
Description of the First Aerial Taxicab and the Paulhan-Tatin Aerial Torpedo
Our Attitude Toward Pioneer Work in Science
The Gas-driven Vessel "Holzapfel I."
A Successful Application of the Marine Producer-gas Engine
Curiosities of Science and Invention - January 13, 1912
The Highest Balloon Ascent and Other Achievements of the Weather Bureau, Ten Thousand Dollars in Prizes for Inventions and more
Departments
"Holes in the Air" A Government Laboratory for Manufacturers
Francis Bacon Crocker
- Departments
The Inventor's Department, January 1912
Recently Patented Inventions - January 13, 1912
New Books, Etc. - January 13, 1912
Notes and Queries - January 13, 1912
Correspondence - January 13, 1912
