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The Great Paris Flood

The Cause Of The Great Inundation

Efficiency in Shop Operations

Methods of Increasing it and Some Results Secured by their Adoption

By H. F. Stimpson

The Pioneer of Aerial Flight

The Work of Samuel Pierpont Langley

By Alexander Graham Bell

Some Experiences of an Aviator

How One Man Learned to Fly with a Blériot

By Claude Grahame-White

Explosives for use in Coal Mines

How Dynamite is Thawed Safely

By C. E. Munroe and Clarence Hall

The Wright Injunction.—II

Extracts from the Court's Opinion and the Briefs

Leonardo Da Vinci.—II

The Engineer and Machinist

By Edward P. Buffet

Progress in Wireless Telegraphy.—I

A Nobel Prize Lecture

By Guglielmo Marconi

Jewelers' Wax

Electric Valves

Halley's Cometary Studies

His Own Account of his Investigations On Orbits

The Chinese Calendar

Science Notes

Trade Notes and Formulæ


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