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SA Supplements Vol 45 Issue 1170supp

SA Supplements

Volume 45, Issue 1170supp

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Features

The Fortifications of Manila

Kites: Their Theory and Practice

B. F. S. Baden-Powell

The Chinese Repeating Bowgun

A New Theory of Geysers

Direction for Working Aluminum

Presses for Baling Cotton

Triple-Geared Sliding, Surfacing and Screw-Cutting Lathe

A New Style of Bicycle Pedal

An Electrical Bureau

Liquid Air as an Analytic Agent

History of the Stone Arch

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

J.H. Gore

The Laughing Plant of Arabia

Patents!