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Features

Recent Decisions Relating to Patents

The “Brush” System of Electric Lighting

The Brush System of Electric Lighting

By Charles F. Brush

The Telephonic Systems of Dr. Cornelius Herz

By Count du Moncel

M. Wiedemann's Electric Paper

On Radiophony

By E. Mercadier

On an Acoustic Phenomenon Noticed in a Crookes Tube

By Charles R. Cross

Physical Society, London, Jan. 22, 1881

By W. G. Adams

Roncalli's Melograph

The Microscope and the Atomic Theory

Improvements in Gas Engines

The Outridge Engine

The Aerial Railway

The Various Modes of Transmitting Power to a Distance *

By Arthur Achard

The Invention of the Link Motion

On Machines for Producing Cold Air

Japanese in English Type

The Discovery of the Sources of the Niger

Abnormal Entozoa in Man

By Samuel Lockwood

On Chicken Cholera: Study of the Conditions of Non-Recidivation and of Some other Characteristics of this Disease

By M. L. Pasteur

Manures

Hereditary Syphilis

Sheep Farming on a Large Scale

On Rational Seasoning of Wood, Etc

Waste of Horse Life

Applying Manure

Whitewood and Cottonwood

Wisconsin Farming

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