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A Novel Steam Tractor for Hauling Logs over Snow

The Typhoid Fly or House Fly

A Dangerous Common Insect

By L. O. Howard

Principles of Fault Location

The use of Wheatstone Testing Instruments

By Julius Bernstein

Submarine Minelayers

A Medieval Edison

The Ingenious Marquis of Worcester

By George Frederic Stratton

Electrolytic Reduction of Indigo

The Ravaud Aero-Hydroplane

A New Type of Aeroplane Adapted to Rise from Water

The Human Eye

What may be seen at the Bach of it

By F. Savorgnan Di Brazza

The World's Wine Production

Sub-Aqueous Photography.—III

Photographing Aquatic Animals in their Natural Environment

By Jacob Reighard

The Effect of Illuminating Gas on Leather

Aeronautics at Gottingen University

Some Fields of Research which are to be Explored

Trade Notes and Formulæ

Engineering Notes

Science Notes


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