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Duck Raising as an Industry

By Howland Gasper

Naphthalene as a Motor Fuel

How Long do Microbes Live?

The Ten Temples of Abydos

By W. M. Flinders Petrie

Dreams that may be Warnings

Oil Palm on the West Coast of Africa

The Spider

By John A. Morris

The 1904 Paris Automobile Show.—I

The Paris Correspondent of the Scientific American

On the Modern Reflecting Telescope, and the Making and Testing of Optical Mirrors

By G. W. Ritchey

Tarring Roads to Prevent Dust and to Aid in their Preservation

Electric Igniters for Gas Engines

By George M. Hopking

Calorific Power of Liquid Fuels

Ambulance Dogs in Warfare

Sir Oliver Lodge on Lightning Conductors

Contemporary Electrical Science

Electrical Notes

Science Notes

Engineering Notes

Trade Notes and Recipes


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