Features
Black and White Men in Invisible Light
Tricks Played by Ultra-Violet Rays
"Heart Stopping" as a Profession
Examples of Muscular Control of Scientific Interest
The "Commonwealth" - "New Hampshire" Collision
The Bulkhead and the Watertight Deck Prove their Value
Artificial Surf Baths
A Miniature Indoor Ocean
A Mammoth Norwegian Power Plant
Telemarken's Great Industry
Henri Poincaré
The Passing of a Great Mathematician and Philosopher
Hurrying Nature
A New Method by Which Trees that Fruited in Eight Years are made to Bear in two
Preventing Collisions at Sea
A Mechanical Application of the Bat's Sixth Sense
The Trade-mark as a Business Asset, The Federal Trade-mark Law.-III and more
[Copyright, 1912, by Mimn & Co.]
The Why and Wherefore of the Muffler and Cut-out
Departments
- Letters
Correspondence - July 27, 1912
- Recommended
New Books, Etc. - July 27, 1912
- Departments
Inventions New and Interesting - July 27, 1912
Recently Patented Inventions - July 27, 1912
Notes and Queries - July 27, 1912
