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Features

New York's Greatest Lighting Spectacle, The Administration View of the Shipping Bill and more

By Charles W. Person

The Sixth Award of the Scientific American Medal for Safety Devices

By William H. Tolman

Stretchers of Straw for the Dutch Army, Phonograph and other Mechanical Aids for the Aviator, and more

By W. J. L. Kiehl

Doing Without Europe--IV

How Industrial Research Will Help the Manufacturer Hitherto Dependent Upon Europe for Basic Materials

The Government Ship Purchase Bill--I

A Defense of the Administration's Policy

By Joshua W. Alexander

The United States an Undefended Treasure Land - Part III

Back of the Regulars and Volunteers We Need in the Event of Invasion a Force of Trained Volunteers and Officers

How Epidemics are Fought in the Austrian Army, The Meat Supply of the United States and more

How Epidemics are Fought in the Austrian Army, by the Berlin Correspondent of the Scientific American; and more

Departments

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    Recently Patented Inventions - February 20, 1915

  • Notes and Queries - February 20, 1915

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February 20, 1915Cover Caption: The Phonograph Leaves the Air-Scouts Hands Unhampered - [see page 175]

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