CONTENTS 
CHAPTER XXI 
PAGE 
EARTHQUAKES AND PRINCIPLES OF ANTI-EARTHQUAKE CONSTRUC- 
TION . . 249 
Nature of Earthquake Action. Depth of Origin. Causes. Eco- 
nomic Seismology—Earthquake Probability and Prediction. 
Anti-Earthquake Construction. Loose versus Firm Founda- 
tion. 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