Volume 113, Issue 3
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Features
A Contrast in Locomotive Practice
An Engine of To-day and One of Eighty Years Ago
The Strategic Moves of the War
Our Military Expert--July 7th, 1915
Why Do Men Over Forty Break Down?
Disk Talking Machine Records Made By Anyone, United States Battleship "California" and Class
Railroads Under and Over the Streets of New York--II
Blasting Tunnels Through the Rocks of Manhattan Difficult Operation of Peeling the Roof off the Existing Subway
The Motor Truck and the Road
Who Should Pay the Road Tax?