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The Krupp Exhibit at the Duessel- Dorf Exposition

Concrete Slab Tests

Pine-Needle Oil in Germany

The Perseid Meteoric Shower of 1902

Thermo-Electric Measurement of Stress

The Manufacture of Bisulphide of Carbon in the Electric Furnace

By Edward R. Taylor

A New Arc Lamp

Gas Engine Ignition by Contact or Catalytic Action

Long Distance Power Transmission

By F. A. C. Perrine

Contemporary Electrical Science

The Northrop Loom

By Irving U. Townsend

A Substitute for Sheep's Wool

Automatic Carving Machines

Royal Society Report on the West Indian Eruptions

A Chart of the Human Hair Streams, Showing their Lineage and History

By Walter Kidd

Death of Prof. Virchow†

The Relation of the Psychic Life to the Nervous System

Trade Suggestions from United States Consuls

Trade Notes and Recipes


Selected Formulæ


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