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On the Saline Efflorescence of Bricks

The Means of Avoidance

By Oscar Gerlach

The Inventor

Glass of the Fifteenth, Sixteenth, and Seventeenth Centuries

Economy Test of a Unique form of Feed Pump

By F. Meriam Wheeler

An Up-to-Date Ice Sloop

By H. Percy Ashley

Utility of Music in War

Stability of a Battleship Under Damaged Conditions

By C. H. Peabody

Early Marine Engineering in the United States

By Charles H. Haswell

The Eruption of Vesuvius


Africa and its Animals

By R. Lydekker

Electrical Notes

Selected Formulae

Miscellaneous Notes

Mr. Henry Savage Landor “in the Forbidden Land”

Message Sticks

By R. H. Mathews

A Mirror Pseudoscope and the Limit of Visible Depth

By G. M. Stratton

High Speed Telegraph Transmission by Means of Alternators

Distilled Water—Its Preparation by a Simple Automatic and Inexpensive Apparatus, and its Preservation

By H. T. Cummings



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