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Features

Relation of External Agents in Plant Reproduction

Scenes in Matanzas

Earthworms

By M. C. Holmes

The Wehnelt Interrupter for Induction Coils

Automobiles in Paris

Thirty-Three-Ton Block-Loading Titan Crane

American Machines in England

Trade Suggestions from United States Consuls

German Imitations of American Machine Tools

Electrical Notes

Selected Formulæ

Miscellaneous Notes

“A Thousand Days in the Arctic.”

Practice in Storming Breastworks by German Engineer Corps

What a Weather Observer should Know

By N. R. Taylor

The Commercial Development of Germany

By C. Rozenraad

Store Window Washing

The Progress of Submarine Navigation

On the Therapeutic uses of Sea Travel

The Cosmoscope

Rapid Blueprinting Processes

By Albert E. Guy

Enameling as an Industry

By Josef Vollkommer

The “House in the Woods” at the Hague

Patents!

Departments

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    June 10, 1899

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