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Features

Light and Power Plant for the City of Geneva

By the Paris Correspondent of the Scientific American

Superheated Steam. A Review of its Development and Use

Use of the Earth as a Return Conductor in Connection with Commercial Electrical Installations

A Machine for the Measurement of Screw-Threads

By the English Correspondent of the Scientific American

Improved Methods of Producing Color Values for Monochrome and Three-Color Printing

By John Carbutt

Shell Ornaments from Kentucky and Mexico

By W. H. Holmes

Herring Oil

By Charles H. Stevenson

Water-Softening

An Inquiry Into the Working of Various Water-Softeners

By C. E. Stromeyer and W. B. Baron

Some New Scientific Exhibits at the Soiree of the British Royal Society

By the English Correspondent of the Scientific American

Some Novel Phenomena in Connection with N Rays

N-Rays. Their Oscillatory Effects

The Glacier Bear

Electrical Notes

Trade Notes and Recipes

Engineering Notes

Trade Suggestions from United States Consuls

Patents!

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    July 02, 1904

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