The Importance of Geographical Research—I
And a Plea for More Accurate Methods
Features
Our Modern Engineering Education
Boiler Explosion in Germany
War Illuminations
Various Methods That Have Proved Their Value
Torpedo Tubes
The Mechanisms Used Above and Below the Surface
Oxford India Paper
Industrial Militarism
Government Training to Develope the Individual
Copper Refining in 1914
Evolution in Shipbuilding—II
The Wonderful Progress of the Past Century
The Longest Railway Tunnel in America
The Roger's Pass Bore Through the Selkirk Mountains in British Columbia
Notes on the History of Coal in the United States
Spots before the Eyes
Signaling Among the Ancients
Various Methods That Were Employed on Land and Sea
Petroleum Production in Galicia Decreasing
The Limitations and Possibilities of Radio Telephony
Clean Linen for Steamships
Wood older than the Hills
Interesting Specimens Found in Glacial Deposits
How Bacteria Were First Seen
Some Remarkable Armadillos
Interesting Armored Mammals of South America
The Screw Propeller
A Discussion of Slip, Cavitation and Other Operating Factors
