Volume 66, Issue 1719supp
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Features
Mechanical Traction on Tramways and Roads
Mycolysine
Electrolytic Sheets and Tubes
A process for their direct Production
A Scribing Tool
Selenium CellS
Their Many uses in Modern Physics
Making Concrete Telegraph Poles
Experiments on Water Resistance
A Digest of Some Low-Voltage Tests of Alternating Current Machinery
An Animal as an Engineering Structure
Some Factors of Safety Provided by Nature
Casting Pipes in Permanent Molds—II
A New Process of Manufacture
Protective Coatings for Polished Metal Goods
Twenty-Watt Tungsten Lamps
The Future of the Tungsten Lamp
The Supply of Uranium
Humane Slaughtering for Abattoirs
The Prize Contest of the American Society for the Prevention of Cruelty to Animals
Anthracene and its Production
The Remodeled “Zeppelin III.”Airship
Description of the First Flights Since the Changes have Been Made
First Cross-Country Aeroplane Flights
The Long-Distance Flights of Farman and Bleriot in France