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Field Competition of Italian Artillery

The Kid Glove and Kid Skin Industry in France

The Bacterial Treatment of Crude Sewage

Engineering in the United States Navy—Its Personnel and Material

The Modern Armor-Clad

Magneto-Optic Rotation and its Explanation by a Gyrostatic System

The Cross of the Basilica of the Sacred Heart


Selected Formulæ

Trade Notes and Receipts

Miscellaneous Notes

Trade Suggestions from United States Consuls

Some Physiological Effects of Hydrocyanic Acid Gas upon Plants


By C. H. Read

The Manufacture of Silkworm Gut in Italy


By John Murray


Agriculture in Mexico


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    December 09, 1899

    Science for the Modern World