Is our Civilization Dying?
The Evidence of History
Volume 75, Issue 1954supp
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Features
A Fabric Impermeable to X-rays
A Tragedy of the Air
Five French Army Officers Killed in a Balloon Ascent
Making Steel Type
Cutting Letters in Steel by Hand and Machine
The Uranium and Radium Situation
A Great Opportunity for the United States
Glimpses of the Moon
Signs of Volcanic Action and Vegetation
The United States Indian Census
Population
Evolution from the Standpoint of Physics—III
The Principle of the Persistence of Stable Forms
Ugly Fishes
Freaks of Nature in Marine Life
The Electric Furnace in the Production of Iron from Ore
A Critical Discussion and a Comparison of Scandinavian and Californian Practices