INDEX. 



421 



Gavial, 260, 307. 



Genesee Slates, 137. 



Geological record, breaks in the, 48- 



56. 



Giraffes, 328. 

 Glacial period, 335; deposits of, 349, 



350. 



Qlandulina, 322. 

 Glaucouite, 36, 74, 271. 

 Glauconome, 127, }&7\ pttlcherrima, 187. 

 Globe Crinoids (see Cystoidea). 

 Globigerina,23, 24,272. 

 Glutton, 374. 

 Glyptaster, 122. 

 Glyptocrinus, ]25. 

 Glyptodon, 3i'-5,3f>6; clavipes, 366. 

 Glyptolocmus, 156. 

 Goats, 329. 



Goniatites, 132, 151, 191, 219; Jossse, 191. 

 Gorgonidse, 302. 

 Grallatores, C07. 

 Graphite, 37; mode of occurrence of, 



37, 68; origin of, 37. 

 Graptolites, , 90, 101; structure of, 101 ; 



of the Lower Silurian, 101-104; of 



the Upper Silurian, 120, 121. 

 Great Oolite, 234, 236; Upper, 264, 266, 



268. 



Greenland, Miocene, plants of, 821. 

 Greensand, Lower, 264, 268. 

 Greensands, origin of, 265. 

 Grevillea, 270, 320. 

 Griffithidcs, 183. 

 Gmzly Bear, 373. 

 Ground Sloths, 864. 

 Gryphoea, 243; incnrva, 243. 

 Guelph Limestone, 119. 

 Gulo Inscus, 374 ; spelseus, 373. 

 Guttenstein Beds, 210, 211. 

 Gymnospermous Exogens, 270. 

 Gypsum, 33, 197, 209. 

 Gyracanthus, 192. 

 Gyroceras, 132. 



Hadrosaurus, 287. 



Halitherium, 309. 



Hallstadt Beds, 210, 211. 



Halobia, 216. 



Haly sites, 121; agglomerata, 122; eaten- 

 ularia,122. 



Hamilton formation, 137, 139. 



Hamites, 281 ; rotundus, 282. 



Haplophlcbiitm Barrtcsi, 186. 



Harlech Grits, 78. 79. 



Harpes, 110, 126 ; uiiciula, 126. 



Hastings Sands, 265. 



Headon and Osborne series, 297, 298. 



Heart-urchins, 322. 



Heliolites, 106, 121, 274. 



Hrlinplii/llinn., 144, l?o; eriguum, 143. 



Helix, 304. 



Urlltiilntlirrium, 328. 



lit injtora fr<tf/ili.*, 128. 



Hemtcidarit < r< /nilnr/n, 240. 



Hcmiptern, 322. 



llcmitrodn'snii* paradnxiin, 202. 



Hempstead Beds, 316. 



He*pfrorni8,2ao. 291; rcgalis, 291. 



Heteropoda, 112; of the Lower Silu- 

 rian, 112; of the Upper Silurian, 

 131; of the Devonian, 160; of the 

 Carboniferous, lb'9. 



Hinnites, 219. 



Hipparion, 312,326,340. 



ffippodium, 242. 



Hippopotamus, 313; amphibius, 328. 



340; major, 3 11, 349, 367; Sivalensis, 



329. 



Hippothoa, 110. 

 Hippurite Marble, 278. 

 Hippurites, 278; Toucasiana, 279. 

 Hippuritidx, 278, 294. 

 Histioderma, 83. 



Hollow-horned Ruminants, 329. 

 Holocystis elegans, 274. 

 Holopea, 131 ; sitbconica, 131. 

 Holopella, 131,219; obsolete, 181. 

 Holoptychius, 156 ; nobilissimus, 158. 

 Holostomatous Univalves, 244, 303. 

 Holothurians, 122. 

 Holtenia, 272. 

 Homacantlnis, 192. 

 Homalonotus, 126, 146 ; armatus, 147. 

 ^forwo diluvii testis, 324. 

 Honeycomb Corals, 144. 

 Hoofed Quadrupeds, 310. 

 Hudson River Group, 96. 

 Human implements associated with 



bones of extinct Mammals, 377, 



378. 



Huronian Period, 75, 76; rocks of, 75. 

 Hyaena crocvta, 342; spelxa, 374;/ftp- 



pariomim, 342. 

 fiya?m'c<^,333. 

 Hyxnodon, 315. 

 Hyalea D'Orbignyana, 323. 

 Hybodus, 2:0, 249, 283. 

 Hydractinia, 273. 

 Hydroid Zoophytes, 104, 273. 

 Hymenocaris vermicauda, 84, 85. 

 Hymenophyllites, 167. 

 Hyme.noptera, 322. 

 Hyopotamus, 313. 

 Hyperodapedon, 224. 

 Hypsiprymnopsis, 230. 

 Hystnx primtgenius, 333. 



Ichthyocrinus Isevis, 125. 



Ichthyornis, 290, 291 ; dispar, 290, 291. 



Ichthyosaurus, 249, 250, 285; communis, 



249. 



Ictitherium, 333. 

 Iguana, 286. 



Iguanodon, 2*6, 287; Mantelli, 286. 

 llfracombe Group, 136. 

 Illsemis, 110, 126. 

 Imperfection of the paleeontologl- 



cal record, 52, 53. 

 Inferior Oolite, 234, 236. 

 Infusorial Earth, 35. 

 Inoceramus, '111; fiitcatiif, 278. 

 /nscc<ivorrt,![of the Eocene, 316; of the 



Miocene. 354. 

 Insects of the Devonian, 147; of the 



Carboniferous, 186 ; of the Jurassic, 



240; of the Miocene, 322, 323. 

 Irish Elk, 360. 

 Ischadites, 100, 120. 

 Isopod Crustaceans, 84. 



Jackson Beds, 299. 



Jurassic period, 232; rocks of, 233; 

 life of, 236, 263. 



