Front matter
Reading edition
Please see the Transcriber’s Notes at the end of this text.
New original cover art included with this eBook is granted to the public domain.

POLITICAL AND COMMERCIAL GEOLOGY AND THE WORLD’S MINERAL RESOURCES

McGraw-Hill Book Co. Inc.
PUBLISHERS OF BOOKS FOR
Coal Age ▽ Electric Railway Journal Electrical World ▽ Engineering News-Record American Machinist ▽ Ingeniería Internacional Engineering & Mining Journal ▽ Power Chemical & Metallurgical Engineering Electrical Merchandising
POLITICAL AND COMMERCIAL GEOLOGY AND THE WORLD’S MINERAL RESOURCES
A SERIES OF STUDIES BY SPECIALISTS
J. E. SPURR, Editor
First Edition Second Impression
Royalties received from the sale of this book will be assigned to an institution of learning to finance further studies along the lines followed in the volume.
McGRAW-HILL BOOK COMPANY, Inc. NEW YORK: 370 SEVENTH AVENUE LONDON: 6 & 8 BOUVERIE ST., E. C. 4 1920
Copyright, 1920, by the McGraw-Hill Book Company, Inc.
THE MAPLE PRESS YORK PA.