SA Supplements Vol 85 Issue 2213supp

SA Supplements

Volume 85, Issue 2213supp

You are currently logged out. Please sign in to download the issue PDF.

Features

The Age and Area Law

A Fundamental Law of Geographical Distribution

James Small

Mixtures of Alcohol with Various other Liquid Fuels

The Stone Age in America

Methods by Which the Indians made their Tools and Weapons

A. F. Bonney

Nature of Heat as Directly Deducible from the Postulate of Carnot

Hydroelectric Development

Brewing Materials

A Permanganate Electric Cell

Arthur W. Warrington

Examination of Cocoa Powders for the Content of Husks

The Breakdown of our Railway Transportation

Neglect of Motive Power Maintenance the Key to the Situation

Gravitational Instability and Figure of the Earth

The Nature and Treatment of Wound Shock

Problems of Atomic Structure—IV:

Differences Characteristic of Different Elements, and Mechanism of the Molecule

J. J. Thomson

Properties of Portland Cement Having a High Magnesia Content

Engineering Feats of the Ancients

The Properties of Oils

And their Relation to Lubrication

George B. Upton

The Geology of West Africa

With Notes on its Resources and Future Development

R. Chudeau