CHAPTER II THE EARTH'S SHAPE 29 CHAPTER III EFFECTS OF WEATHER ON THE EARTH'S HISTORY 39 CHAPTER IV RECORDS LEFT BY RIVERS 50 CHAPTER V RECORDS LEFT BY THE SEA 59 CHAPTER VI COLD AND ICE ON THE EARTH 67 CHAPTER VII THE FIRE-HARDENED ROCKS 78 CHAPTER VIII THE EARTH AT ITS BEGINNING 90 CHAPTER IX THE CHILDHOOD OF THE EARTH 98 CHAPTER X THE EARTH AS THE ABODE OF LIFE 108 CHAPTER XI LIFE IN OTHER WORLDS 118 CHAPTER XII THE HARDENING OF ROCKS 128 CHAPTER XIII EARTHQUAKES IN GEOLOGY 137 CHAPTER XIV SOME FAMOUS EARTHQUAKES 148 CHAPTER XV THE CAUSES OF EARTHQUAKES 165 CHAPTER XVI VOLCANOES AND MOUNTAIN FORMATION 179 CHAPTER XVII FAMILIES OF ROCKS AND THEIR DESCENDANTS 197 CHAPTER XVIII HOW THE COAL BEDS WERE LAID DOWN 212 CHAPTER XIX THE AGE OF REPTILES 226 CHAPTER XX THE AGE OF REPTILES (_continued_) 235 CHAPTER XXI THE CHALK PERIOD 245 CHAPTER XXII THE AGE OF MAMMALS 256 CHAPTER XXIII THE ICE AGE 269 CHAPTER XXIV THE KINGDOM OF MAN 284 INDEX 293 LIST OF ILLUSTRATIONS PAGE MEGALOSAURUS _Frontispiece_ MAP SHOWING DISTRICTS OF WORLD-SHAKING EARTHQUAKES 15 ONE OF THE COLOSSAL NATURAL BRIDGES OF UTAH 40 THE GARDEN OF THE GODS, COLORADO 44 A CURIOUS ROCK GREATLY REVERED BY THE NATIVES 46 THE GRAND CAÑON OF ARIZONA 52 CLEOPATRA TERRACE, YELLOWSTONE PARK, U.S.A. 56 A PETRIFIED TREE 58 THE CRATER OF AN EXTINCT VOLCANO 104 THE PINNACLED CASTLE-LIKE PEAKS OF THE RAMSHORN MOUNTAINS OF WYOMING 130 A GEYSER IN ACTION 140 A CURIOUS ERUPTION OF MOUNT ASAMA, JAPAN 154 A HOUSE DESTROYED BY AN EARTHQUAKE 158 THE RUINS OF THE MAGNIFICENT CITY HALL OF SAN FRANCISCO 160