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Features

Wireless Telegraphy Experiments at the Eiffel Tower

By Emile Guarini

Our Myriads of Telephones and Telegraphs

Contemporary Electrical Science

Practical Data on European Practice with Steam Turbines

By Franz Koester

Ore-Concentration Plant at the St. Louis Exhibition

Pumps

By Philip R. Bjorling

Science Notes

The Matitsch Lace-Making Machine

By A. Matitsch

Meteorology in the British Empire

By John Eliot

Stars: Their Various Stages of Development as Revealed by the Spectroscope

Stars: Their Various Stages of Development as Revealed by the Spectroscope

Experimental Electrochemistry

By N. Monroe Hopkins

The Construction of a Large Electromagnet for Optical and Surgical Work

By Clarence Sterling

The Development of a Tree

Correspondence

Why. Does A Chameleon'sColor Change?

Engineering Notes

Trade Notes and Recipes

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    February 25, 1905

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