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Features

Lord Lister

The Greatest Benefactor to Suffering Humanity

By W. Watson Cheyne

Cooling Deep Mine Shafts

Poisonous Metals in Food Supplies

Their Sources and Action on the Economy

Regulation of Radioteleǵraphy

Restraining Unwarranted use of the Ether

By Robert A. Morton

The Chemistry of Raw Suǵar Production—I

By Charles A. Browne

The Bernina Railway

From Valley Vineyattl to Mountain Glacier

By Alfred Gradenwitz

Life without Oxyǵen—II

The Anaerobic Beginnings of Life

By Carl Snyder

Civil Enǵineerinǵ Work in the Tropics

Advice from one Who has had Experience

By Wm. J. Millard

The Boland Tail-less Biplane

Complete Description of an Original American Aeroplane

Deflocculation

By Edward G. Acheson

Fire Extinction by Frothy Mixtures

A Record of Some Very Successful Trials of the New Method

Water Purification

A Combined Finder, Level and Telemeter

The Sense of Smell

Its Limitations and Peculiarities

By R. Foerster

A New Aerodynamical Apparatus

Engineering Notes

Electrical Notes

Trade Notes and Formulæ

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    March 23, 1912

    Think Outside the Gift Box