Volume 117, Issue 4
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Features
Electricity- July 28, 1917
Science- July 28, 1917
Invention- July 28, 1917
The Submarine Problem--IX
The Net as a Weapon of Offense
Strategic Moves of the War, July 19th, 1917
By Our Military Expert
[Galicia; Belgium]
The Potash Call
"Potash is needed for fertilizer; needed badly ; but the situation is not such as was described by a German professor who foretold that our crops would all be failures for lack of it."
The United States Marine Corps
A Military Body Qualified for Duty with Either the Army or the Navy
Fuel Values of Foods
The Bill of Fare of the Future, Pricing Each Item in Calories as Well as Cash
[the cover image on page 53 is associated with this article]
Meeting the World's Shipping Shortage with Concrete Ships
Short note on shipbuilding.