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The Decay of Metals

By J. T. Milton and W. J. Larke

The Krupp Works at Essen.—II

By Day Allen Willey

On the “Emanation Substance” from Pitchblende, and on Radium

By F. Giesel

Report on a Visit to America

By H. A. Yorke

The Serpollet Steam Automobile

Cotton Growing

Cross-Fertilization in Sociology

By J. Collier

Suitable Fertilizers in the Cultivation of Lettuce

Hollow Pressed Axles

By Camille Mercader

An Investigation of a Garbage Crematory

An Important Scientific Expedition

The Code of Khammurabi

The Crompton Potentiometer for Electrical Measurements with Direct Current Supply

Contemporary Electrical Science

Land Yachts made from Old Bicycles

On Electrons

By Oliver Lodge

Wind-Bags as Bird Love Charms

Selected Formula

Trade Suggestions from United States Consuls


Trade Notes and Recipes


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