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Precious Stones as they have Influenced Geography

The War in Thessaly

The Fat Men's Club, of Paris

Fritillaria Pluriflora


By Asa S. Kinney

The Bear of Northern India

Economic Ornithology—Birds in their Relation to Man

Galvanic Plating of Aluminum

Selected Formulæ

Engineering Notes

Electrical Notes

Miscellaneous Notes

The Testing of Indicator Springs

Locomotive Building in Japan

Railways of the World

A Review of the Last Seventy-Two Years

Street and other Railways in Greece

By Nicholas D. Sourmely

The use of Gutta Percha in the United States

By John M. Armstrong

Collodio-Chloride Emulsion for Transparencies

Machine for Degreasing Leather

Some Experiments with Kathode Rays

Objects made of Eggshells

Yogi Magic in India


The Vineyards of France


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    May 22, 1897

    Science for the Modern World