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Features

Air-Break Switches

By W. P. Hammond

How to Collect and Preserve Insects—I

Methods and Apparatus Used in an Interesting Pastime

By Frank E. Lutz

Anthropological Survey of Canada

The Origin of the Word “Engineer”

Its Etymology and Applications Considered

By Hunter McDonald

Railway Signals

Two Phenomena that are Still Mysteries

Spontaneous Ionization and Penetrating Radiation

The Dawn Man of Piltdown

Was He One of the Missing Links?

Scientific Study of Aeroplanes

Testing Polarity of Field Coils

By F. A. Annett

A Visit to the Royal Aircraft Factory

Where the British Government Develops its Air Scouts

By F. A. Stone

The Double Cocoanut Palm

Feeding the German People in Time of War

Discussed by a German Authority before Hostilities Were Declared

The Future of Engineering Progress

Wreck Statistics for 1913

Vital Processes and Physics

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November 07, 1914

Think Outside the Gift Box