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Features

The East India Village in the Vienna Zoological Garden

Artificial Mineral Waters

By Thomas Warwick

Spiders' Musical Organs

The Nature of Valence

By F. P. Venable

Portable Acetylene Apparatus

The many Products of Coal Tar

The Lehmann Rotary Pump

Portable Rail Saw

Trade Suggestions from United States Consuls

Selected Formulæ

Miscellaneous Notes

Trade Notes and Receipts

Trade with Our Possessions and Cuba

Pulque-Mexico's National Drink

Egyptian Papyri

Archæological Discoveries at Carthage.—II

Outline History of Brick Making

United States Mail on Street Cars

An Improved Liquid Interrupter for Induction Coils

Storage Battery Patents

Long Distance Telephony

First Large Cruisers of the British Navy

Automatic Pistols

Russia's Great Naval Enterprise

The Preparation of Vermouth in France

An Open Maze

The Catalogue of Science

The Glaciers in Montana

Patents!

Regenerating Vulcanized Rubber

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