Skip to main content


The Fortifications of Manila

A New Theory of Geysers

The Chinese Repeating Bowgun

Kites: Their Theory and Practice

By B. F. S. Baden-Powell

Direction for Working Aluminum

Presses for Baling Cotton

A New Style of Bicycle Pedal

Triple-Geared Sliding, Surfacing and Screw-Cutting Lathe

An Electrical Bureau

Liquid Air as an Analytic Agent

History of the Stone Arch

By Malverd A. Howe

Chemistry of Plant Colors

Navy Full Diet Table

Electrical Notes

Selected Formulæ

Engineering Notes

Five Early Astronomers

The Present Appearance of Jupiter

American Competition with France in Agricultural Products

A Governmental Department of Science

By J.H. Gore


The Laughing Plant of Arabia


    Purchase To Read More

    Already purchased this issue? Sign In to Access
    Select Format
    June 04, 1898