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A Fifty-Ton Electric Crane

By the English Correspondent of Scientific American

Recent Study of Radium

New Principles in Aerial Flight

By John J. Montgomery

Platinum and Platinum Alloys

Metal Foundry Patterns

By Walter J. May

Curious Optical Illusions

By Arthur K. Bartlett

The “Salvator” Acetylene Searchlight

Iron and Steel Hull Steam Vessels of the United States.—VI

By J. H. Morrison

The Stature of Man at Various Epochs

By A. Dastre

Contemporary Electrical Science

The Chemistry of Tobacco

Some Curious Phenomena of Rainfall

The Radiation of Light by Plants

By Hans Molisch

Sense of Hearing in Fish

Turpentine Stains and Water Stains

Electrical Notes

Engineering Notes

Trade Notes and Formulæ

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    November 25, 1905

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