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Features

German Men of War

New System of Inclined Plane for Boats

A French Gun for Colonial Service

Four-Seat “Devon” Hansom Cab

Point Bridge, Pittsburg, Pa

Lagerman's Composing Machine

The Monitograph

A Rocking Apparatus for use in Developing Dry Plates

By J. M. Eder

The Johnson Filter

Separating Zinc

By W. Hampe

Oxalate of Potash Developer

New Tourist Camera

Minute-Glass with Alarm

Billet's Improved Burette

A New Process for Effecting the Liquefaction of Oxygen

By L. Cailletet

Glycerine and its Uses

By F. H. Alcock

Acetylene

Oxygenated Water

Electrolytic Quantitative Analysis

By Alexander Classen

The Topophone

Fonvielle & Lontin's Electrical Motor

On the Changes Produced by Magnetization in the Length of Rods of Iron, Steel, and Nickel

By Shelford Bidwell

The Resources of Alaska

By Frederick Schwatka

A Mechanical Bird Made of Paper

Quito, Ecuador

On the Agency of Water in Volcanic Eruptions, with Some Observations on the Thickness of the Earth's Crust from a Geological Point of View, and on the Primary Cause of Volcanic Action

By Joseph Prestwich

Sunlight and the Earth's Atmosphere

The Papaw

Atmospheric Electricity

By L. Palmieri

The Civet Cat

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July 04, 1885

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