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The Electric Furnace

Progress in the Manufacture of Iron and Steel

By P. M. N. Bennie

Human Nature and Clothes

Fast and Fugitive Dyes

something about their Chemistry

By Otto N. Witt

Novelties in Toys

Some Interesting French Inventions

The Oil Fields of the Gulf of Mexico

Their Geological Place

By John C. Soley

Curious Importations

Some Strange Articles Entering the Foreign Commerce of the United States

The Olympia Aero Exhibition

A Remarkably Fine Show with some Notable Exhibits

The South Pole

The Coming Antarctic Expeditions

Myth and Science

To find the Size of a Stop

Solar Vortices and Magnetic Fields.—II

Recent Study of the Sun

By George E. Hale

Geese that grow on Trees

Halley's Comet.—I

By far the most interesting of the Periodic Comets

By George F. Chambers

The Low Cost of Reinforced Concrete Chimneys

Engineering Notes

Science Notes

Trade Notes and Formulæ


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