Illuminating Devices in the Great War—II
An Account of Aerial Lighting Devices and Their Development from 1914 to the Armistice
Volume 88, Issue 2279supp
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Features
Selecting Wood for Airplanes
A Discussion of Considerations Necessary in Selecting Materials and the Effects of Some Hidden Defects
Cold Storage of Food—I, Researches on Fog-Signal Measurement, and more
Consideration of the Problems Involved Fundamentally Aids in Developing Appropriate Types of Storage
Experimental Wireless Telegraphy and Telephony—V
Describing the More Advanced Types of Receiving Sets, with Particular Reference to Post-Bellum Practice
Swiss Railways Extend Electrification
Aids for the Deaf
Mechanical Devices to Remedy Defective Hearing and Why They Often Disappoint