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Features

Bietrix's Vertical and Horizontal Compound Engine

Improved Gas Engine

Meters for Power and Electricity

By C. Vernon Boys

Filter for Industrial Works

Raising and Moving Masonry Buildings

The Val St. Lambert Glass Works

Proper Shoeing

Measuring Starch Granules

Detective Photography

Ideas

By A Looker-on

Photographs for Studying the Movements of Men and Animals

By M. Marey

A New Sulphate of Copper Pile

The History of the Electric Telegraph

The Decay of the Building Stones

By A. A. Julien

Lodges

Elephants Moving Timber at Moulmein, Burmah

The Education of German Women

Strength of Yellow Pine

Filth Diseases in Rural Districts

By Alfred L. Carroll

Science in Antiquity

Horse Medicine Bit

The Physiology of Sleep

A New Method for the Detection of Sugar in the Urine

Preparation of Chlorhydrines

Chemical Compounds made by Compression

By M. W. Spring

Copper Alloys among the Ancients

By E. Reyer

The Big Trees of California

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