Recent Decisions of the Commissioner of Patents Concerning Trade Marks and Labels

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 *

Bayle's Lamp Chimney

Interesting Facts About Platinum

Modern Locomotive Practice

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

Halesia Hispida

Windflowers

Story of Lieut. Greely's Recovery

The Cay Monument at Uxmal