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Features

Antarctic Exploration

By Edwin Swift Balch

Coffee

By E. C. Rost

Water in Australia

A New Census Machine

Electrolytic Reduction of Lead

Electricity in its Application to Submarine Mines

By John Stephen Sewell

Vertical Direct and Alternating Generators

By Frank C. Perkins

Blue Print and Black-Print Photographic Papers, and their Preparation

By Alfred I. Cohn

New Filter Plant at Middletown, N. Y

The Inventor of Dover's Powder

The Gulf Stream Myth

Light and Malaria

Recent Progress in American Bridge Construction

By Henry S. Jacoby

Bell Founding

Economic uses for Shells

A Remarkable Psychic Contrast from the Life-History of Ants

By Herman J. Muckermann

The Giant Wild Sheep in the Zoological Garden at Berlin

Recovered Rubber

India Ink—How it is Made

Trade Suggestions from United States Consuls

Exalbuminous Fruit of Melocanna

Patents!

Selected Formulæ

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    Dwindling Supply. Increasing Demand.

    Dwindling Supply. Increasing Demand.

    Solving the Water Crisis