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H. M. S. Hero

The Admiralty Experiment Tank at Gosport

Photographic Notes

By H. W. Vogel

The Submarine Torpedo of Peral

Dredging by Suction

Plate Edge Planing Machine

A Public Swimming Bath at Reims

The New Hofburg Theater in Vienna

Electricity as Applied to Mining

By Frank Brain

A Simple Switch and Commutator for Battery Use

Improvements in Dyeing, Tissue Printing, and Bleaching during the Second Half of 1887

By Paul Julius

Millimetres and Equivalents in Inches

By Geo. R. Henderson

On the Influence of Sulphur upon Eggertz's Carbon Color Test

By T. W. Hogg

Oleomargarine in Great Britain

Apatite Mining in Canada

Spectrum Analysis and Optical Physics

Solutions of Caustic Soda as Transmitters of Heat

The Heroult Aluminum Process


By W. Chandler Roberts-Austen

On the Causes of Variation in Organic Forms

By C. V. Riley

The Chulpas or Tombs of Umaya

The Serpent Mound Park

The Muir Glacier, Alaska

By J. W. Chickering

Building Plans and Specifications


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December 08, 1888

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