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Andrée's Polar Expedition

The Florida Sponge Industry

By William B. Burk

On the Distribution of the Pelagic Foraminifera at the Surface and on the Floor of the Ocean

The Common Accidents of Summer Tourists

By James E. Pilcher

Edward Drinker Cope, Naturalist

A New Law of Heredity

Clay Inebriates

The Fountains at the Hofburg in Vienna

Does Track Sweeping Pay?

The British Battleship Renown

Towns' Water Supply and its Distribution

By W. M. Watson

The Working of Sheet Aluminum

Acetylene on Board Ships

The Manufacture of Rubber Substitutes

The Mechanical Shipment of Coal


Machine to Locate Fires

The Color of Blood

By Felix Oswald

Electrical Notes

Engineering Notes

Miscellaneous Notes


Selected Formulæ


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