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Features

New Water Engine

Piat's Portable Oscillating Foundry Furnaces

Trial Test of a New Patent “Bumper”

The Leadville Mines

Fossil Forests of the Volcanic Tertiary Formations of the Yellowstone National Park

By W. H. Holmes

The Brazilian Sandstone Reefs

A Salt Mountain in St. Domingo

A Mountain Sinking

A Recent Visit to Pompeii

By H. D. Garrison

Another World Inhabited Like our Own

Description of the Planet Mars—Discovery of its Satellites

Determination of the Diameter and Volume of the Sun

The Telephone and Microphone Controversy

Invisible Solar Clouds

Heinrich Wilhelm Dove

American District Telegraph Boys

Tolles' One-Seventy-Fifth Inch Objective. Its History, Construction, and Uses

Bloodhounds on the Trail

The Flesh of Diseased Cattle as Food

Sun and Air Baths

By C. H. Merrick

Clerac's Tube

Gelatine Plates in India

By Col. F. Dawson

A Short History of Sizing

By George Whewell

Process for Printing or Transferring Designs

By L. Zweig and A. T. Tischler

Anthracene (C14H10)

The Newest Explosive

Toluidine (C7H9N)

Texas in its Geognostic and Agricultural Aspect

By J. Boll

Esparto Grass Trade of Tunis

Making a Poor Soil Fertile

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    June 14, 1879

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