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Features

The Jeannette Expedition

Improved Gas Making Apparatus

Trial Trip of the New Steamer Queen of the Pacific

The Ventilation of the St. Louis Tunnel

Electric Lighting Applied to Navigation

The “Pilsen” Electric Light Arc Lamp

By Henry F. Joel

Herz's Telephone Trumpet

Lightning.—Look out for It

Silico Copper Wire

Photo Jottings

By J. Waterhouse

Coating Paper with Photographic Preparations

A New Method of Preparing Iodide and Bromide Emulsion

An Examination of the Various Methods of Determining Tannic Acid

By Nelson H. Darton

The Late M. Poitevin

Peroxide of Hydrogen

By P. Ebell

Earth Metals Contained in Samarskite

By H. E. Roscoe

On the Electrolysis of Sulphate of Copper

The Chemical Action of Light

By J. M. Eder

Digestibility of Coffee and Sugar

Tripolith and Artificial Sandstone

The Relation of Food to Muscular Work

By W. B. Carpenter

Telopea Speciosissima

Friedrich Mohr's Theory of the Formation of Coal from Marine Algæ

Travels of Plants

Prehistoric Knives

New Zealand Fungus

Vines

By J. T. Stewart

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