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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

Portable Rail Saw

The Lehmann Rotary Pump

Trade Suggestions from United States Consuls

Miscellaneous Notes

Trade Notes and Receipts

Selected Formulæ

Pulque-Mexico's National Drink

Trade with Our Possessions and Cuba

Archæological Discoveries at Carthage.—II

Egyptian Papyri

Outline History of Brick Making

An Improved Liquid Interrupter for Induction Coils

United States Mail on Street Cars

Storage Battery Patents

Long Distance Telephony

First Large Cruisers of the British Navy

Automatic Pistols

Russia's Great Naval Enterprise

An Open Maze

The Preparation of Vermouth in France

The Catalogue of Science


Regenerating Vulcanized Rubber

The Glaciers in Montana


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    September 23, 1899

    20% Sitewide for President's Day