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Features

Capazza's Lenticular Balloon

Stability and Speed of Yachts.—A Problem of Mechanics in Theory and Practice

Guns as Heat Engines

Inland Navigations in Europe

Ten Wick's Swiveling Wheel

Smokeless Furnaces

Motor for Sewing Machines

The Locomotive Decapod

A Plan for Sewerage

Tank Locomotive, 18-in. Gauge

A New Milling Machine

The Manufacture of Wreaths of Immortelles

A New Vacuum Apparatus

Varley's Flexible Carbon Arc Lamp

The Carbureting of Illuminating Gas

The Hydrodynamic Researches of Professor Bjerknes

By Conrad W. Cooke

On the Production of Alternating Currents by Means of a Direct Current Dynamo-Electric Machine

By John Trowbridge and Hammond Vinton Hayes

Some Properties of the Ether

Purification of Drinking Water by Alum

By Peter T. Austen and Francis A. Wilber

The Hon. Sir William R. Grove, D.C.L, F.R.S

Hydrogen Dioxide

By M. Traube

The Ammoniaphone

Liquid Paraffin

By Leon Crismer

Compound Eyes and Multiple Images

The Gymna St, Ernst Bohlig

How English Factory Operatives Live

A Large Dragon-Fly

The Culture of Microbes

Northern Corn the Best

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May 30, 1885

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