Features
Destroying 300 Millions in Paper Money
A Scientific Method of Burning Banknotes
A Flying Machine that Folds its Wings
Ingenious Method of Reducing the Spread of an Aeroplane
Design of Racing Aeroplanes
Drawings of Some Remarkably Fast Monoplanes, With Designs for an International Cup Defender
The Ingenuity of the Toy-maker
Pitting Brains Against Cost of Labor and Materials
Curiosities of Science and Invention - May 4, 1912
What Inventors are Doing - May 4, 1912
Simple Patent Law; Patent Office News; Inventions New and Interesting
III.--Shall My Boy Become an Electrical Engineer?
Departments
- Recommended
New Books, Etc. - May 4, 1912
- Departments
Correspondence - May 4, 1912
The Heavens in May 1912
Recently Patented Inventions - May 4, 1912
Notes and Queries - May 4, 1912