Features
The Collision on Long Island Sound
Some Improvements in Soap Making
The Naval War-Game War.-XIV
A Water Supply for Jerusalem
Fulton's Submarine
Lantern Slides
Color Photography
Air-Borne Smallpox
Contemporary Electrical Science
Remarkable Pictures of an Electric Illumination
The Osmium Electric Lamp
The Electrolytic Recovery of Tin from Scrap and Cuttings
Steam Trucks for Heavy Hauling
Monorail Lines
Radio-Activity of Ordinary Materials
Steam-Turbines to Date
Science and the Common Weal
Some Curious Cures
Traps of the American Indians—A Study in Psychology and Invention
Meaning of the Term American
A Test with Carrier Pigeons for War Purposes
Increasing the Power of Gasoline Motors by the Injection of Water into the Cylinders
Tests of the Banki Motors
