Volume 101, Issue 15
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Features
Philadelphia, the Delaware River, and John Fitch
Home-Grown Sugar-Beet Seed
Palestine and Syria the Original Cereal Countries
Science
Aeronautics
Engineering
Stereoscopic Moving Pictures in Natural Colors
Erection of the Fades Viaduct
The Number of Our Ancestors and of Our Future Cousins
The Pope and the Comet
Why Do Main Springs Break?
Open-Air Orchard Heating in Colorado
The Visiting Warships--A Comparison
A Novel Air Pump and Vacuum Gage
How to Connect Stove Pipes
Handy Man's Workshop
Simple Blue-Printing Frame