Scientific American Magazine Vol 112 Issue 16

Scientific American Magazine

Volume 112, Issue 16

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Features

Raising the "F-4," Are Obsolete Battleships Obsolete? and more

J. F. Springer

Dum-dum Bullets

Expanding bullets are forbidden by the laws of war.

Edward C. Crossman

An Analysis of Our Naval Standing--II

Why We Are An Inferior Power

George von L. Meyer

Zones of Silence, The Current Supplement

W. J. L. Kiehl

Selenium in the Production of Colored Glass, Back Numbers of the Scientific American Supplement and more

Samuel Wein

Teaching Defective Children, Disinfecting Railway Cars

The Remarkable Experiment of Columbia University in Educational Psychology

A. M. Jungmann

Development and Perfection of Schoop Metal Spray

The Improved American "Pistol"

Measuring One Twenty-Millionth of an Inch

The Finest and Most Sensitive Measuring Instrument Known to Modern Science

Ernst Keil

The Strangest City in the World

A Town Given Over to the Moving Picture

An Important Moving-picture Decision