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Features

Rescue Company No. 1 of the New York Fire Department, A Fair Field and No Favor and more

The Principles of Radio-Telephony

A Review of Recent Progress

By John L. Hogan

Building a Lighthouse on Shifting Sand, A New Engineering Medal and more

By H. J. Shepstone

The Superheated Steam Unit

Some Remarkably Economical German Engines

By Warren H. Miller

An Aerial Monorail

Mähl System for High Speed Suspended Electrical Trains

Chestnut Blight Poisoning

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    Correspondence - March 27, 1915

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March 27, 1915