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The Chilian Nitrate of Soda Mines and Works

The Molecular Structure of Matter

Instruments for Measuring Radiant Heat

By C. V. Boys

Caustic Soda Lye, And How It Is Tested

To Prevent Bumping in Distillations

The Manufacture of Distilled Perfumes and Essential Oils in Southern France

Knight's Oil Engine

Spring Railroad Rail

Rigging Torpedo Net Defense

Locomotive Practice in America

An American Engineer

Purification of Sewage and Contaminated Water by Electrolysis

By William Webster

Shaken Milk

By John C. Morgan

The Strength of Alloys at Different Temperatures

By W. C. Unwin

The Sanitary Congress, England

A Journey to the Head Waters of the Orinoco



Meteorites and what they Teach Us


By Jules Juvenet

The Utilization of the Elephant

The Japanese Paper Frog

Building Plans and Specifications


By Percy F. Frankland, Grace C. Frankland and J. J. Fox

Useful Engineering Books


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November 23, 1889

The Antidote to Anti-Intellectualism