A New Departure in Ship Construction
By the English Correspondent of Scientific American
Features
Wreck Statistics for 1907
American Power Transmission
A Review of Recent Work
Electrical Vision at a Distance
The Armengaud System
Making Blue-Prints without a Frame
An Air-Driven Typewriter
A Labor-Saving Office Device by our Berlin Correspondent
A New Method of Plating Metals with Tin, Zinc, and Lead
Dredging on the Panama Canal
A Description of the Machines Used
Why Concrete should be Waterproofed
An Automobile Road Roller
A New French Type by our Paris Correspondent
Old and New Methods of Tempering Steel
A 100-Horse-Power Motor Yacht
A Gasoline Cruising Boat by our English Correspondent
The Distribution of Coal and the Rate of its Consumption
The Liquefying of Helium
Prof. Onnes' Remarkable Achievement
Liability of Various Trees to Lightning Stroke
The Swastika
The History of a Popular Symbol
Barley and its Cultivation
A few Popular Scientific Suggestions
The Practical Good of Astronomy
The Transplanting of Fish
What has been done by the Fish Commission
