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Marconi's Plans

The “Latent Heat” Fallacy

By R. H. Thurston

Contemporary Electrical Science

Metal Workers' School in Saxony

The New United States Warships

The Cultivation of Tobacco in Connecticut

By Carlos de Zafra

New Satre Dredgers for Service on the Lower Seine

Living Water for Jerusalem

The David Selector and the Metallurgy of Copper

Need of Direct Steamship Service to Africa

Efficiency of Production

By N. C. Woodfin

Great Diamonds of All Countries

The “Locomobile” Steam Carriage

Alcohol and Automobiles

The Geological Society of America

By Edmund O. Hovey

Annual Report of the Secretary of Agriculture, 1901

Irrigation Matters

The Chlorophyl Respiration of the Spirogyras

Orchids that Drink

Trains Parted

An Apparatus for Determining Fat

By H. J. Wheeler and B. L. Hartwell

The Weather Bureau

By Willis L. Moore

Actinium, Polonium and Radium

Trade Suggestions from United States Consuls



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