The Sciences
Stories by Frank C. Perkins
The Sciences
Single-Phase Locomotives and Motor Cars in Bavaria and Sweden
Technology
A New French Compound Locomotive
The Sciences
The Rhodesia Railways in South Africa
The Sciences
New German Electrically Controlled Air-Brake System
The Sciences
The Zoelly Steam Turbine
The Sciences
Photographing the New York Subway
Technology
An Electrical Aerial Ferry
The Sciences
The Japanese Hydro-Electric Power Plant at Kyoto and Lake Biwa Canal Development
The Sciences
The Manufacture of Carbons in England
Technology
The Use of Electricity in Driving Coal-Conveying Machinery
Technology
A New English Telephonic Fire Alarm
Technology
The Buckeye Traction Ditcher
Technology
A New German Tower Electric Crane
Technology
The Mercury Vapor Lamp for Photographic Work
The Sciences
Modern Coal-Hoisting Apparatus
Technology
Belgian and American Electric Lifting Magnets
The Sciences
The Development of the Electric Mining Locomotive.—II
The Sciences
The Development of the Electric Mining Locomotive.—I
Technology
