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Features

Possibilities of the Telephone

The Frankfort and Offenbach Electric Railway

Pyrometers

The Temperature of the Solar Surface

Chemical Nature of Starch Grains

The Amalgamation of Silver Ores

Description of the Francke “Tina” or Vat Process for the Amalgamation of Silver Ores *

By Edgar P.

Bayle's Lamp Chimney

Interesting Facts About Platinum

Modern Locomotive Practice

By H. Michell Whitley

Screw Steam Collier Frostburg

Joy's Reversing and Expansion Valve Gear

Destruction of the Tardes Viaduct

The Steam Bell

Lieut. Greely Before the British Association

Diamond Mining in Brazil

What We really know about Asiatic Cholera

Dr. Koch on the Cholera

Malaria.—The Natural Production of Malaria, and the Means of Making Malarial Countries Healthier

By Conrad Tommasi Crudeli

Halesia Hispida

Windflowers

Story of Lieut. Greely's Recovery

The Cay Monument at Uxmal

By LE PLONGEON

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    October 11, 1884

    Complex Causes. Alternative Solutions.