Volume 134, Issue 5
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Features
How Can We Produce Scientific Workers?
Malaria and the Mosquito Fish
A Plan to Exterminate Malaria by Means of a Fish that Eats Malaria-carrying Mosquitos
Acoustical Research in Auditoriums
By Making a Scientific Study of Rooms Having Bad Acoustics It Is Often Possible to Eliminate Echos
Is Anti-aircraft Artillery Overtaking the Airplane?
An Answer to Those Who Fear the Danger of Invasion from the Air
The Great Outer Planets
Jupiter and Saturn Have Hot Centers and Frigid Exteriors
Tut-Ankh-Amen's Golden Coffins, the Work of Ancient Egypt's Most Skilled Artisians
Radio Whirlpools in the Ether
Modern Broadcasting Plants Charge the Air With Powerful Electric Streams
Old Problems and New Methods in Prehistory
The Relations Between the Physical and Cultural Evolution of Ancient Man
A Diamond Quest in California
Cherokee Mine, Once One of the Richest Gold Producers, May Now Become a Diamond Mine
Interesting Air Stamps and Historic Cancellations
Horsepower from the Tides
Proposal to Develop Half a Million Horsepower at the Bay of Fundy
A Way to Conserve Our Valuable Timber Supply
How Industrial Wood Preservation May Help to Save Our Fast Disappearing Forests
Western City Ends Flood Menace
Moving a River Half a Mile Across the City of Pueblo
An Underground Moving Picture Theatre
A Novel Method of Providing Entertainment and Instruction for Miners and Their Families
Fossils in Architecture
Nature Faking
Popular, Fallacies Have Grown Out of Pseudo-Scientific Nature Lore