Gasoline and Alcohol Engines
Commercial Deductions from Comparison Tests
Features
Schist Bricks
Incandescent Petroleum Lamps for Lighthouses
A Portable Danish Oil Engine
A New form of Locomobile
Aluminium its Future as a Substitute for Copper Wire
A Bismuth Microphone
The Limits of Sensitiveness of Thermo-Electric Batteries
Time Speed Control Signals
How Automatic Devices Prevent Railway Collisions
The Whole World's Harvest
Superheated Steam in Locomotive Practice
Architectural Acoustics
How Sound Interference in Buildings may be Cured
A Warship Sunk by a Torpedo as an Experiment
The New Simplon Locomotives
Powerful Electric Engines for the Famous Swiss Road
A Persian Royal Tomb
Recent Find of Rich Treasure at Susa
Cook vs. Peary
The Psychology of the Controversy
Action at a Distance
Photographic Effects of Drying oils
Some of the Showy Mushrooms in Nature
The Boletus Family
Forks and Cleanliness
Photographing Comets
With Special Reference to Halley's Comet
