Volume 112, Issue 20
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Features
Marconi's Wireless Telephone
Edison Submarine Boat Storage Battery
What is Matter Made of?
Resemblance of the Atom Structure to an Infinitely Small Solar System
Lessons of the Present War from a Technical Point of View
Motion Picture Magic
Playing Tricks on Time
Your Panama Hat
From the Tropical Jungles of South America to the American Hat Store
The Fly
A Model of Musca Domestica 64,000 Times Life Size