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Preliminary Notes on the Archæology of the Yakima Valley, Washington

By Harlan I. Smith

The “Coco De Mer”

By the late Nicolas Pike

Clearing New Land

By Franklin Williams

The increase of knowledge in the Several Branches of Science

By E. Ray Lankester

Rifled Pipe for Conducting Heavy Crude Fuel Oil

By John D. Isaacs

A New Excavating Machine

Recent Developments in Wood Block Paving

By F. A. Kummer

Fundamental Principles of Gas Engines and Gas Producers

By Robert T. Lozier

Chemical Affinity and its Possible Causes

By George E. Bolles

Reversing Shaft Governor Engines

By W. H. Wakeman

Contemporary Electrical Science

New Substitute for Soap

Engineering Notes

Science Notes

Trade Notes and Formulæ

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    September 15, 1906

    Think Outside the Gift Box