Volume 109, Issue 19
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Features
The Jungfrau Railway
A Great Engineering Feat
The Daniel Boone Idea in Education
A School System based on Voluntary Muscular Work
The Fire Control Platform of a United States Battleship
How the Telescope Sight, the Range Finder and the Spotter Co-operate to Secure Good Shooting
The Completion of the Los Angeles Aqueduct
Bringing 265,000,000 gallons of water per day 234 miles from the Sierras to Los Angeles
Hugh Lincoln Cooper
The Man who built the Keokuk Dam across the Mississippi
Smoke Helmets for Firemen, The French Prohibition of Inflammable Celluloid Films
Finger Print Detection by Chemical Means
How Telegrams are Sent in China, Transforming a Schooner into a Grain Lighter
What Are the Ten Greatest Inventions of Our Time?
The Second Prize Article in the Scientific American's Invention Contest