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The Launch of the White Star Liner “Cedric.”

By Harold J. Shepstone

Washington, Baltimore and Annapolis Single Phase Railway

By B. G. Lamme

Five Hundred Horse Power Gas Engine

United States Mineral Products, 1901

Untidy Streets and Disease

Odd Effects of Photography

History of Cold and the Absolute Zero

By James Dewar

On the Atomic Weight of Radium

By Mdme. Curie

A Novel Automobile Fore-Carriage

Nippur's Great Library

The Phenomenon of Cannibalism

Poultry as a Resource

New Food Plants in Yucatan

A Review of the Existing Methods of Cultivating Anaerobic Bacteria

By Otto F. Hunziker

Trade Suggestions from United States Consuls

Selected Formulæ



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