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Modern Painting Methods in the Navy

The Government Now its Own Manufacturer of Paints

By Henry Williams

The Optics of a Railway Signal Lamp

Why is the Lens Made of Corrugated Glass?

By T. A. Lawes

The Use of Sulphur Dioxide in the Manufacture of Wines

Glasgow Main Drainage Scheme

One of the Largest Installations of its Kind in the World

By Frank I. Cohen

Some Recent Developments in Wood Distillation

Millions of Cords of Wood Allowed to go to Rot are Capable of Yielding Valuable Products

By Thomas W. Pritchard

Novelties at the Paris Aviation Show—II

A Fine Exhibition Representative of the Present Development of the Art

Enzymes and Inhibitants

By A. Hardens

A Gateway to the Heart of New York

The New Grand Central Station and its Relation to New York Traffic

Some Experiments in Carbon Printing without Transfer

By Frank E. Huson

Facts and Fancy about Ventilation—II

Chemical Composition of the Air an Imperfect Criterion of Its Health Value

By Leonard Hill

Large Gate Valves and Pump Fittings

Representative of Modern Mammoth Construction


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