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The Opposing Leaders in the Philippines

Porto Rico: Its Natural History and Products

Suess' Theories of Geographical Evolution

Animal Parasites

Climatology as Distinguished from Meteorology

Cylindrical Sun Dials

Nepenthes Ventkicosa

The Preparation of Meat Extracts

By Charles R. Valentine

The Art of Taxidermy: Mounting Large Mammals

Selected Formulæ

Miscellaneous Notes

Engineering Notes

The “Telectroscope” and the Problem of Electrical Vision

Fourth—Class Cruiser “G” of the German Navy

“The Engineer'S” report on the Destruction of the Spanish Fleet

A New Pyrograph

Ammonia Absorption Refrigerating Machine

The New System of Conventional Sectioning

“Anglian” Portable Electric Motors and Drill Press, with Flexible Shaft

Procuring Tortoise Shell

How Flowers Attract Insects

By G. W. Bulman

The Werner Motocycle


The Bacteriological Treatment of Sewage


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