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Features

Manufacture of Roll Tar Paper

The New Labor Exchange, Paris

A Physical Laboratory Indicator

New Method of Extinguishing Fires

Smokeless Gunpowder

By Hudson Maxim

The Construction and Maintenance of Underground Circuits

By S. B. Fowler

Railroads to the Clouds

A Review of Marine Engineering during the Past Decade

By Alfred Blechynden

The Marceau

The Hygienic Treatment of Obesity

By Paul Cheron

The Little House

By M. M.

Stilt Walking

Remains of a Roman Villa in England

Gum Arabic and its Modern Substitutes

By S. Rideal and W. E. Youle

Mr. Cailletet's Cryogen

Method of Producing Alcohol

Useful Engineering Books

Building Plans and Specifications

Spectroscopic Determination of the Sensitiveness of Dry Plates

Departments

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September 26, 1891

Complex Causes. Alternative Solutions.