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Features

The Opposing Leaders in the Philippines

Porto Rico: Its Natural History and Products

Suess' Theories of Geographical Evolution

Animal Parasites

Cylindrical Sun Dials

Climatology as Distinguished from Meteorology

Nepenthes Ventkicosa

The Preparation of Meat Extracts

By Charles R. Valentine

The Art of Taxidermy: Mounting Large Mammals

Engineering Notes

Selected Formulæ

Miscellaneous Notes

The “Telectroscope” and the Problem of Electrical Vision

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

Fourth—Class Cruiser “G” of the German Navy

A New Pyrograph

Ammonia Absorption Refrigerating Machine

The New System of Conventional Sectioning

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

The Werner Motocycle

Procuring Tortoise Shell

How Flowers Attract Insects

By G. W. Bulman

The Bacteriological Treatment of Sewage

Patents

Departments

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    July 30, 1898

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