Features
Around the World in Three Days?, The Uses Of The Navy and more
Again the Helicopter?
Experiments by Prominent Inventors Who Hope to Realize This Long-Standing Dream
Post-Bellum Britain and the Inventor
Some Facts and Figures Regarding the Present British Patent Activities
The Romance of Invention--V
Some Notes on the Lifework and Character of a Great Chemist
With Typewriter and Offset Press
How the Scientific American was Manufactured in the Absence of Compositors and Pressmen
Signposts of the Sea
The United States Lighthouse Service
Bombardments from the Skies
The Recent Lake Michigan Meteorite, and Others of the Same Breed
Why Horses are Shod
Departments
- Departments
Inventions New and Interesting - December 13, 1919
Recently Patented Inventions - December 13, 1919
