628 



INDEX. 



PAGE 



Didymograptns V-fractus 308 



Dikes, definition 209 



age, how determined 212 



effect on intersected strata 210. 



radiating, of volcanoes 94 



Dinichthys Terrelli 335 



Dinoceras mirabile 532 



skull and brain 538 



Dinocerata 532 



Dinornis elephantopus 605 



giganteus 604 



Dinosaurs 439, 460 



Dinotherium giganteum, head 525 



Diorite 203 



Dip, definition 176 



Diphyphyllum Archiaci 331 



Diplacanthus gracilis 337 



Diplocynodon victor 467 



Diplograptus pristis 308 



simplex 299 



Diprotodon Australis, skull 588 



Dirt-beds, Jurassic 425 



Discoidea cylindrica 478 



Disintegration of rocks 5 



Divides, migration 272 



Dodo 605 



Dolerite 208 



Dollo 441 



Drift 546 



in relation to gold 600 



theory of origin 551 



timber 143 



Dromatherium sylvestre, jaw 458 



Drumlins 547 



Dryptosanrus 485 



Dunes 8 



Dutton 131, 216, 230, 264, 272 



E 



Eads 33 



Eagres 32 



Earliest reptiles, general observations 404 



Earth, constitution of the interior 84 



crust of, definition 166 



crust of, thickness 85 



crust of, gradual oscillations 133 



crust of, means of geological observa- 

 tion 166 



density 165 



form 163 



general surface configuration 167 



Earthquake bridges 124 



depth of focus 128 



determination of epicentrum 130 



determination of focus 131 



effect of moon on 132 



fissures 124 



great sea-wave 125 



phenomena, explanation 117 



relation to seasons and atmospheric con- 

 ditions 133 



shocks less severe in mines 124 



shocks more severely felt in mines 123 



PAGE 



Earthquake wave, spherical, determination 



of velocity 116 



waves, definition lie 



waves, their kinds and properties 114 



waves, velocity 119 



Earthquakes Ill 



connection with other forms of igneous 



agency Ill 



circle of principal destruction 123 



elevation or depression during 112, 134 



explosive 117 



frequency Ill 



horizontally progressive 118 



minor phenomena 122 



motion 122 



originating beneath ocean 125 



proximate cause 114 



sounds 122 



ultimate cause 113 



vorticose 120 



Echinoderms, Carboniferous 391 



Cretaceous 478 



Jurassic 428 



Silurian 309 



Triassic 416 



Echinorachnis Brewerianus 513 



Edestosaurus (clidastes) 486 



Edestes minor 398 



Elephas Americanus 581 



antiquus 580 



Falconeri 580 



Ganesa 526 



Melitensis 580 



meridionalis 580 



primigenius 580 



Elevation and depression of earth's crust, 



gradual 133 



theories 138 



Babbage's theory 138 



general theory 139 



Hcrschers theory 139 



gradual, in Greenland 136 



gradual, in Italy 134 



gradual, in Scandinavia 135 



gradual, in South America 134 



of Northern Europe in Glacial epoch. . . 570 



Elk, Irish 579 



Elvanite 206 



Emmons 457 



Enaliosaurs 437 



Encrinus liliformis 416 



Endlich 211 



Engis skull 609 



Entomostraca 325 



Eocene basin of Paris 523 



epoch 502 



lower, mammals 529 



marine, of Alabama 528 



middle, mammals 532 



Tertiary shells 512 



Eohippus 540 



Eosaurus Acadianus 403 



Eoscorpius carbonarius 397 



EozoOn Canadense 238 



