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Edison on Patents

The French Academy

The Divining Rod

Cycle Parade at Cannstadt

A Photographic Impact Testing Machine for Measuring the Varying Intensity of an Impulsive Force

By B. W. Dunn

On the Properties of Liquid Fluorine

By Henri Moissan and James Dewar

Diseases of London

A New Gobelins Tapestry

Ice Houses

The Eckmuhl Lighthouse at Penmarch

Acetylene as an Illuminant

Some Notes on Pottery

Change in the Habits of Wild Animals Owing to the Advance of Civilized Man

Gliding Experiments

Interesting Facts and Suggestions about Alaska

Engineering Notes

Selected Formulæ

Miscellaneous Notes

Petroleum Solidification


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