Automobiles in the Great War—I
Types of Cars Used and Technical Details Considered in the Light of Experience
Volume 82, Issue 2117supp
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Features
Elevation of the Aurora Borealis
Shadow Pictures by Parallel Rays
Negatives Produced Direct, Without a Lens
Feeding the Firing Line
Water Pressure
Shooting Soot from Chimneys
The U. S. Government Libraries at Washington
Important Institutions of Great Value to the Nation
Producing High Vacua
Cutting Efficiency and Hardness of Tool Steels
British Methods of Handling Coal
Great Machines Employed for Loading Vessels at the Docks
A Generating Station Danger
Contagion from Clothing
Modern Views of the Sun—II
An Important Star Whose Real Nature Is Only Beginning to Be Understood
An Electrically Conducting Paint
The Process of Case Hardening
A Method of Heat Treatment, of Great Importance in the Mechanical Art
The Preparation of Surgical Catgut
Bird Houses
Hints on Their Construction, Location and Care
A Mica X-Ray Spectrometer
The Economic Possibilities of the Danube as a Cosmopolitan Highway
The Determination of the Resistance of Ships
A Review of Recent Investigations Relating to Powering Different Types of Vessels