Volume 58, Issue 1491supp
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Features
The Railroads of the World
Some Experiments on an Air-Cooled Petrol Motor
The Fallacy of the Tests Ordinarily Applied to Portland Cement
Striking Objects Found at Carthage
By the Paris Correspondent of the Scientific American
Extraordinary Phenomena of N-Rays
Results of Borax Experiments
The Electro-Metallurgy of Iron and Steel
Racing Automobiles in the 1904 Gordon Bennett Cup Race.—II
By the Paris Correspondent of the Scientific American