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Scientific American Magazine Vol 108 Issue 9

Scientific American Magazine

Volume 108, Issue 9

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Features

The Naval Reserve Movement, Morse Signals from London to New York and more

Keeping Books by Machine

The Punched Card as a Saver of Brain Energy

H. S. McCormack

Creating a Subterranean River Ninety Miles in Length

How Catskill Water is Being Brought to New York

Supplying a Metropolis with Mountain Water

How Mining Operations Are Being Carried on Through the Heart of New York

Queer Automobile Bodies

Some Interesting French Designs

Friedmann's New Tuberculosis Remedy, The New York Motor Boat Show and more*

H. J. Archard

Departments

Correspondence - March 1, 1913

The Heavens in March 1913

Recently Patented Inventions - March 1, 1913

Notes and Queries - March 1, 1913