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Features

Wegmann's Porcelain Cylinder Mill

The Iron Railway Bridge Over the Saint Leger Valley, France

Wheel and Rail for Common Roads

Improved Reversible Lifeboat

The New Palace of Fine Arts at Rome

Collecting and Working-Up Photographic Residues

Practical Methods of Intensifying Gelatine Plates with Silver

Field Telegraph without Battery

The Quadrant Electrometer

A Review of the Doctrine of Ether Waves and of the Material Nature of Light

By Ellen R. Prescott

The Analysis of Milk

The Chemistry of Lignification

By C. F. Cross and E. J. Bevan

Extraction of the Precious Metals from all Kinds of Ores by Electrolysis

By Blas and Miest

Pneumonia

By Francis Delafield

Cypripedium Sedeni X

Bee Culture in India

The Big Winners

Trotting Statistics

British Columbia—Its Climate, Resources, and People

The Devil's Pit

By John D. Parker

Tellurium in Copper

By T. Egleston

Nutritive Value of Skim Milk

By J. Konig

Patents

Sulphur in Italy

Departments

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