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Large Iron Roofs

The Great Steamer City of Rome

Mechanical Science

Opening Address by Sir W. Armstrong, C.B., D.C.L., LL.D., F.R.S., President of Section G, British Association, York, 1881

The Small-Arm Factory at Enfield

The Army and Navy Building at Washington

Electric Lighting by Incandescence

By J. Swan

The Jablochkoff System at the Paris Electrical Exhibition

Magneto-Electric and Dynamo-Electric Machines in the International Electrical Exhibition at Paris

Gas Engines at the Paris Electrical Exhibition

Air Telethermometers

By E. Rousseau

History of Telegraphy

A New Method of taking Transparent Positives

By Biny

Practical Hints on Saving Silver and Gold Wastes

By Cooper

The New Element Actinium

On the Separation of Hydrocarbon Oils from Fat Oils

By Alfred H. Allen

Hospital of st. Eloi, at Montpellier, France

By Frederic J. Mouat

Saliva and Snake Poison

The Late Discovery of Egyptian Remains

Influence of Forests on Water Courses

By David D. Thompson

The Recent Discoveries in Egypt

Student-Life in Vienna


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