Giant German and Austrian Cranes
Required in Navy Yards for Placing Turrets, Guns and Machinery
Volume 80, Issue 2070supp
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Features
Radiotelephony
Some of Its Problems and Reasons for Its Slow Progress
Outline of the Coal Tar Chemical Industry
Wages in the German Factories
Our Unpreparedness against Military Devastation
The National Safety above Either Sectional or Political Interests
Military Explosives—I
Their Chemistry, Preparation and Action
Kaolin in the Treatment of Bacteria Carriers
The Automobile Torpedo
Its Problems and Their Solution
The Jitney Problem—II
Its Regulation, Its Relation to Street Railways, and How They Can Meet the Movement
Vaccine Virus not the Cause of Tetanus
Pyrometers for Shop Use
Principles Governing the Design and Construction of Electrical Pyrometers
The Bacterial Flora of Trees and Men
Some Characteristics of Bacilli that have Been Little Studied