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Thomas Alva Edison

The International Exhibition of Electricity

By Th. Du Moncel

Smith's Dynamometer

The Early Days of Electric Telegraphy and of Ocean Cables

The Megy Dynamometric Counter

How to Construct a Barometer

By A. F. Miller

Joining Wires

Compressed Air Engines

By Jas. Young

Siemens' New Gas Generator

On the Application of Solid Steel to Small-Arms, Projectiles, and Ordnance Manufacture

By M. F. Gautier

Practical Notes on Plumbing

By P. J. Davies

How Silk is Spun from the Cocoon

Shipbuilding a Thousand Years Ago

Man and Woman—An Anthropological Comparison of the two Sexes

By G. Delaunay

Hot Ice


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