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Features

Open-Hearth Steel Melting Furnaces

Interest in Colonial Matters

Petroleum

Art Canons—Historic and Prehistoric

By Thomas Wilson

Keyseaters at the Glasgow Exhibition

A Few Common Boiler Troubles

By R. A. Douglass

Patent Cylinders for Single-Acting Ram Pumps

Coal in the Arctic Regions

Recent Studies of Old Italian Volcanoes

Prof. Adams' Lectures on the Lunar Theory

By P. H. Cowell

Effect of Iron Sulphate on Vegetation

The Largest Known Dinosaur

Automobiling in the West

By Charles B. Shanks

New Type of River Gunboat

Charcoal Production and Recovery of By-Products in Germany

By Mason

Is Alcohol a Food, a Poison, or Both?

By John Madden

Domestic Purification of Potable Water

The Reversal of the Photographic Image by Continued Action of Light

The “Ark” Lamp

Contemporary Electrical Science

Selected Formulæ

Trade Suggestions from United States Consuls

Mining on the Klondike

Trade Notes and Receipts

Patents!

Departments

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