Experiments on Flight

Friction

The Methods of Reducing the Resistance of Friction.

Some Type Writers—Their Origin and Uses

Blast Furnace Practice

Indigo Manufacture: An Improved Process

Suggestion about Canceling Postage Stamps

An Iron Microphone

The Blackpool Electric Tramway

The Harcourt Color Tests

The Pressure and Composition of Natural Gas

On the Determination of Aluminum in Presence of Large Proportions of Iron

Crystallization of Native Copper

Causes of Forest Rotation

Haunts and Habits of the Great Lake Salmon