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Features

Greek Architecture–The Lighting of Temples

Dresden's Newest Theater

Fan and Engine for Forced Draught

Needed Inventions

By Robert Grimshaw

Progress in the Iron and Steel Industries

Cooper and Wigzell's Sounding Apparatus

By Charles Bright

Geodetic Operations in the United States

Dr. Hans Meyer's Latest Kilimanjaro Expedition

The Exploring Radioscope

Telephone Service in Foreign Countries

Mammoth Ivory

By R. Lydekker

The Preparatory Work in Grapevine Culture

The Grand Canon of the Colorado

By Ralph S. Tarr

The Rhinopitheci

Trade Suggestions from United States Consuls

Selected Formulæ

Engineering Notes

Patents!

Departments

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    July 15, 1899

    Think Outside the Gift Box