CONTENTS

CHAPTER XXI

PAGE
EARTHQUAKES AND PRINCIPLES OF ANTI-EARTHQUAKE CONSTRUC-TION
 . . 249
Nature of Earthquake Action. Depth of Origin. Causes. Economic
 Seismology—Earthquake Probability and Prediction.
Anti-Earthquake Construction. Loose versus Firm Foundation.
 Effects of Lateral Movement, Level of Greatest
Damage, Suitability of Materials.

PART V

MINERAL FUELS
CHAPTER XXII
Coar, 48D ITS CLASSIFICATION . . . 259
Definition of Coal. Humic Coals— Peat, Lignite or Brown
Coal. Black Coal. Anthracite. Sra, Sapropelic
Coals—Cannel Coal. Classification and Origin of Coal.
Carbon Enrichment in Coal Seams. Coal Resources.

CHAPTER XXIII

. . 275
MINERAL Ou, | i lassification. Baumé
i . Physical Classificati fry
a on Origin of Oil. Indians a
Petia PO and Ce i VI
i il-fields of the ited La
on a, ie ; South Buiter ; | urope ; As
ier Persia, Burma, Eastern Archipelago.
Oil Shale.

INDEX OF AUTHORS
INDEX oF LOCALITIES
SUBJECT INDEX .

297
301
. 307