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Features

Nocturnal Warfare

The Automobile-Mounted Searchlights of the French Army

Heredity—IV

New Theories and Facts Relating to the History of Organic Beings

By William Bateson

Train Signaling in France

Electrical Driving for Rolling Mills—I

Its Adaptation to Existing Steam-Driven Plants

By L. Rothera

Recent Developments in Marine Propulsion

The Compound Turbine, with Reduction Gear, and Gas and Oil Engine

Balancing Internal Combustion Engines

Birds and Weather

By A. Landsborough Thomson

International Volts

The Experimental Plotting of Electro-Static Fields

A Simple System Useful in Designing High Tension Insulators

By S. H. Querbocker and Morgan Parsons

The Automobile Torpedo

The History of the Development of a Remarkable Invention

The Atlas of Finland

A Model Geographical Work of a Little Known but Interesting Country

By Gustave Regelsperger

Peppermint Oil in the Ukraine

Substitutes for Automobile Gasoline

By Gail Mersereau

The Westinghouse System of Bridge Control

Apparatus for Controlling a Turbine-Driven Ship from the Bridge

Hardness of Metals

New uses for Infusorial Earth

Turpidity of the Upper Atmosphere in 1912

Wireless Telegraph Station at the German Observatory at Spitzbergen

Wireless Equipment on Aircraft

By Marcus D. Manton

A Water Rheostat

Correspondence

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    October 03, 1914

    Think Outside the Gift Box