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Progress of Experiments with Kites in 1897-98 at Blue Hill Observatory

By S. P. Fergusson

The Yucca Plant in Venezuela

Tobacco in Korea

From Djibouti to Harrar

The “Ballot” Shaft Coupling and Propeller

Portable Hand-Punching and Shearing Machines

Artificial Silk in Germany

Memorandum on the Mineral Resources of the Philippine Islands

By George F. Becker

Engineering Notes

Selected Formulæ

Miscellaneous Notes

The Toy-Industry of Nuremberg

Siberian Silhouettes

Apparatus for Nickel Plating Numerous Small Objects at a Time

A new Acetylene Lamp

Heating by Coal Tar

The Economic Status of Insects as a Class

The Bad Language of Wild Birds

By Charles A. Witchell

Portable Electric Propeller for Boats

Repairing a Screw Shaft


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March 04, 1899

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