Volume 57, Issue 1482supp
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Features
Use of Concrete for Railway Ties
The Problem of the Screw Propeller
The Age of Cement
Note on the Fractional Condensation of Air, with a View to the Commercial Production of Oxygen
Pumping Plant at the Milke Collieries, Japan
The Mathematics of Mufflers for Gasoline Engines
Oil from Livers of Cod and Related Species
Sources Of Supply
Recording Alternating-Current Waveforms by Duddell Oscillographs
By the English Correspondent of the Scientific American