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Features

German New Guinea

The Egg of the Dung Beetles

Antiquity of Signaling

The White & Middleton Gas Engine

Machine for Automatically Shaping the Edges of Iron Plates

Tests of Bicycle Wheels

Abstract of Report of the Commissioner of Patents for 1897

The Annealing of Copper

By G. Wyckoff Cummins

Perrault's Colonnade of the Louvre

The Manufacture of Oxygen

Bernard Palissy and his Art

Engineering Notes

Selected Formulæ

Miscellaneous Notes

Sir Henry Bessemer

Electric Casting

The Postal Service of Australian Aborigines

Photographic Investigation of a 150,000 Volt Power Discharge

By Charles Proteus Steinmetz

De Kermodes Rudder Mechanism

The Solution of the Flight Problem

Patents

Departments

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