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Precious Stones as they have Influenced Geography

The War in Thessaly

The Fat Men's Club, of Paris


By Asa S. Kinney

Fritillaria Pluriflora

Economic Ornithology—Birds in their Relation to Man

The Bear of Northern India

Galvanic Plating of Aluminum

Selected Formulæ

Electrical Notes

Miscellaneous Notes

Engineering Notes

The Testing of Indicator Springs

Locomotive Building in Japan

Street and other Railways in Greece

By Nicholas D. Sourmely

Collodio-Chloride Emulsion for Transparencies

The use of Gutta Percha in the United States

By John M. Armstrong

Machine for Degreasing Leather

Some Experiments with Kathode Rays

Objects made of Eggshells

Yogi Magic in India


The Vineyards of France


  • Railways of the World

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May 22, 1897

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