Radio Inspectors and their Work
How the Wireless Apparatus of a Steamer is Tested by the Government Officials
Strategic Moves of the War, December 11th, 1915
Our Military Expert
The Transparent Aeroplane
Note: the cover illustration for this issue illustrates the concept.
Submarine or Battleship—Which?
The Battleship—The Foundation and Supreme Fighting-Unit of a Modern Navy
New York's Testing Laboratory
Describing the Varied Activities of a Municipal Testing Plant
Killing Animals by Electricity
Humane and Efficacious, Offering a Striking Contrast to the Usual Primitive Methods
Combination Scoop and Scale for Material in Bulk, Time-Saving Rule Case for News-paper Printers and more
New Books, Etc. - December 18, 1915
The Motor-driven Commercial Vehicle