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Rhinoceros Adders in the Berlin Aquarium

Turtle Fishing in Madagascar

The Geysers of Yellowstone Park

By Day Allen Willey

Self-Registering Electric Wattmeters

Storage Battery Invention

Contemporary Electrical Science

Theory of the Coherer

An Adverse View of the Metric System

Specimens of American-Indian Medical Practice

Breathing Liquid Oxygen

The Manufacture of Oleomargarine

Leather for Bookbinding

By J. Gordon Parker

Water Tube Boilers.—II

The English Correspondent of the Scientific American

Painting Structural Iron

Utilization of Exhaust Steam

The Naval War Game.—III

An Indecisive Action in the Far East—capture of the “kaiserin augusta”

By Fred T. Jane

Trade Suggestions from United States Consuls


Selected Formulæ


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    January 03, 1903

    20% Sitewide for President's Day