SA Supplements Vol 86 Issue 2230supp

SA Supplements

Volume 86, Issue 2230supp

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Features

The Electrical Industry in America

A Review and a Forecast

E. W. Rice

Lead Azide—A Powerful Explosive

New Composition Opaque to X-Rays

War Service Schools at Educational Institutions

South American Frogs

Richard Deckert

Chemical and Mechanical-Technical Examination of Rubber

A Steel Ship Built without Rivets

Sources of Platinum

Thermostats

W.N. Ray, J. Reilly

Recent Observations on the Solar Coronas

Making and Destroying Paper Money

How the Bureau of Engraving and Printing and the Redemption Division Work

C.H. Claudy

A Serious Wheat Disease Discovered in the East

Liquid Ostrich Eggs

War Coins, of the Central Powers

Methods for the Production of Pure Cocoanut Oil

Liquid Films

Note on the Testing of Magneto Magnets

J.D. Morgan

The Commencement of the Astronomical Day

Use of Crude Napthalene as Fuel for Internal Combustion Engines

Brush-Making Fibers

The Southern Cross

Isolina V. Mill*amp*aacute;s

A Review of Mycology—I

Questions of Biology that Still Demand Study

P. Vuillemin