INDEX. 



631 



PAGE 



Gymnophiona 402 



Gypsum deposited from springs 79 



Gyracanthus 398 



Hadrosaurus 



Hall 



Halodon sculptus. . . 

 Halysites catennlata. 



Hamilton period 



Hamites 



Haughton 



Hay 



Hayden 



Heavy spar 



Hederoephyllum angulatum. 

 Heer 



Heiioceras Robertianus • 



Hemerobioides giganteus 



Hemicidaris crenularis 



Hemitelites Brownii 



Henessey. . „ 



Herschel 34, 35, 39, 74, 88, 8 



theory of movements of earth's crust. . 



Hesperornis regalis 



Heterocrinus simplex 



Hilgard 



Hill 



Hipparion 



— - gracile, restored 



Hippurites Toucasiana 



Hitchcock 



Holmes 



Holoptychius Hibberti, tooth 



nobilissimus 



Homocrinus scoparius 



Hopkins 



Horizon, geological 



Hornblende 



Hornblende schist 



Horse 



Horse family, diagram of changes 



genesis 



Howell 



Humboldt 



Humphrey 



Humus acid 



Hunt, E. B 



,T.S 



Huronia 



Huxley 403 



Hybodus apicalis 



reticularis, spine and tooth 



Hydrographical basin 



Hydrothermal fusion 91 



Hydrozoa, living 



Silurian 



Hyena spelsea, skull 



Hylseosaur 



Hylerpeton 



Hylonomus 



Hymenocaris vermicauda 



Hymenophyllites aiatus 



485 



407 



500 



306 



328 



480 



187 



421 



268 



236 



476 



425 



482 



435 



429 



427 



164 



139 



132 



... 490 



.... 313 



. . . . 31 



.... 473 



. .. 541 



.... 526 



.... 480 



... 452 



. ... 211 



.... 399 



.... 336 



. ... 313 



.... 86 



...196 



. .. 204 



.... 220 



.... 237 



... 542 



... 540 



... 232 



. 83,85 



... 11 



... 4 



... 382 



224, 382 



... 318 



403. 450 



... 418 



10 

 222 



307 

 308 

 578 

 441 

 403 

 403 

 300 

 364 



PAGE 



Hymenophyllites splendens 364 



Hyolithes primordialis 299 



Hyrachyus 532 



I 



Ice, agency of 45 



floating 70 



Icebergs as a geological agent 72 



deposits from 72 



formation 70 



number 71 



Ice-cliffs containing remains of mammoth. . . 580 



Ice-pillars, formation 51 



Ice-sheet, limit moraine 554 



Ichneumon inf ernalis 514 



Ichthyocrinus sublsevis 312 



Ichthyornis '. 489 



dispar 490 



victor 489 



Ichthyosaurs of Jura-Trias 466 



Ichthyosaurus communis 437 



paddle-web 438 



Igneous agencies 83 



Igneous rocks, classification 202 



Ignanodon 440 



Bernessartensis 441 



Imhoffia pallida 514 



Inachus Kaempf eri 326 



Infusorial earth, Richmond 510 



earths, origin 511 



Inoceramus dimidius 478 



Insects, Carboniferous 397 



Devonian 334 



Jurassic 435 



Tertiary 514 



Intercalary beds 211 



Interior heat of the earth 83 



of earth, increasing temperature 84 



of earth, rate of increase of tempera- 

 ture 85 



Interval between Archaean and Palaeozoic 



eras 294 



Intrusive rocks 205 



Invariable temperature, stratum of 83 



Invertebrates, age of 296 



Irish elk, skeleton 579 



Iron age 607 



hat of copper vein 239 



ore of the coal-measures 383 



springs, deposits in 79 



Irving.. 223 



Islands, coral 146 



bordering 45 



mangrove 158 



Isogeotherm 84 



Isopods 325 



Isotelus gigas 323 



J 



Jointing, regular, of limestone 227 



Joints 182, 226 



Judd 89,260 



