Volume 110, Issue 3
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Features
X-Ray Photographs of Microscopic Objects
How They Are Made by the Goby Method
A Wind Shield For Bicyclists, The Renewed Siege of the Atlantic, A Modern Battle-Practice Target, and more
The Soot-and-Dust-fall of English Towns and Cities; 200 to 2,000 Tons per Square Mile per Annum
How it is to be Measured
Radium in Cancer
Its Scope of Usefulness and Its Limitations
Going Through the Shops-III
The Associate Editor of the Scientific American Witnesses Some of the Methods Used in Obtaining Extreme Accuracyin High Grade Motor Cars
The Cleaning of Scientific Instruments Composed of Glass
Farm for Jungle Folk
Feeding the Animals of a Zoo and What it Means
The Industrial Need of Technically Trained Men-IX
The Possibilities in Iron and Steel Making