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Scientific American Magazine Vol 117 Issue 20

Scientific American Magazine

Volume 117, Issue 20

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Features

How Ripe Olives Are Made, Pinholes in Photographic Plates, and more

Arthur L. Dahl

Science- November 17, 1917

Astronomy- November 17, 1917

Naval and Military- November 17, 1917

Lake Vessels for the Atlantic Service

Cutting Them in Half for Shipment Through the Welland Canal to the Seaboard

Ships of Stone

Seaworthy Concrete Vessels an Accomplished Fact

R. G. Skerett

Strategic Moves of the War, November 8th, 1917

By Our Military Expert

The "Trading with the Enemy Act"

Conditions Under Which Patents of Enemy Subjects May be Used

Cutting Logs into Shingles

How Big Trees Are Converted Into the Thin Slabs That Cover Our Roofs

Ernest Elva Weir

What of the Dirigible Balloon?

New Possibilities of Lighter-Than-Air Craft Disclosed by the Recently Tested Forlanini Airship

Marked Changes in Captive Lions, Cutting the Cost of Packing by Using Standardized Containers, and more

Acceleration as a Leading Feature of the Electric Vehicle, An Unusual Case of Cattle Poisoning from the Wild Black Cherry, and more

Departments

Correspondence- November 17, 1917

The Motor-Driven Commercial Vehicle - November 17, 1917

Foreign Commercial Notes and Queries- November 17, 1917