INDEX. 
557 
Graptolites from the Caradoc formation, 
68 ; Llandeilo formation, 48, 51; Lower 
Silurian rocks, Gl ; Mr. W. Carruthers 
on, 538. 
Graptolithus lobiferus, 51. 
priodon (G. Ludensis), 61, 68. 
Sedgwickii, 61. 
tenuis, 51. 
Grau-liegende of Eisenach, 316. 
Gray, Mr. J., 222, 225, 234. 
Great Glen, 172. 
Green, Mr. A. H., 291. 
Greene, Prof. J. Eeay, 539. 
Greenough, Mr. G. B., 4, 35, 549. 
Grieston slates, 152, 153. 
Griffith, Sir E., 173-183, 210, 212, 294, 
295. 
Grindrod, Dr., 45, 94, 96, 112. 
Gulf of Bothnia, 356. 
Giimbel, Dr. C, 12, 372, 373. 
Gurmaya Hills, Ural Mountains, 312. 
Gutbier, M., 325, 326, 337. 
Gwaun Ceste, 59. 
Gyllenberg, M., 347. 
Haddingtonshire, Carboniferous rocks of, 
291 ; Old Bed Sandstone of, 250. 
Hagley Hills, 117. 
Haime, M. Jules, 276. 
Hall, Mr., 438. 
Hall, Prof. James, 19, 40, 62, 163, 165, 
190, 230, 237, 238, 424-432, 438, 539. 
Hall, Sir James, 148. 
Halysites catenularius, 120, 189. 
Hamilton, Dr., 264, 268, 271. 
Hamilton, Mr. W. J., 368, 398. 
Hancock, Mr. A., 201. 
Hangman Grits, 272. 
Hanter Hill, 108. 
Hargreaves, Mr., 461. 
Harkness, Prof. E., 146-154, 158, 168, 
171, 181, 310, 330-332, 335, 451. 
Harlan, Mr., 163. 
Harlech Grits, 41. 
Harley, Dr. J., 134, 239, 240, 260, 356, 
542. 
Harpes Flanagani, 206. 
Hartt, Mr. C. R, 435, 439. 
Harz, Palaeozoic rocks of the, 390; Per- 
mian rocks of the, 318. 
Haswell, Mr. G. C, 159. 
Hawkshaw, Mr., 296. 
Hawn, Major R, 342, 442. 
Hay, Brecknockshire, 244. 
Hayden, Dr., 342, 442. 
Hayes, Dr., 441. 
Heat, theory of internal, 1. 
Helderberg group, 430. 
Heliolites inordinatus, 188. 
interstinctus, 120. 
megastoma, 188. 
petaliformis, 120. 
tubulatus, 120. 
Hell, M. Hommaire de, 368. 
Helmersen, Gen., 345, 358, 364-366, 459. 
Helminthochiton Griffithii, 197. 
Henslow, Prof., 36. 
Hercynian Gneiss, 373. 
Herefordshire, Lower Wenlock Limestone 
of, 109 ; Old Eed Sandstone of, 245 ; 
Upper Llandovery rocks of, 89. 
Herschel, Sir J., 549. 
Heteropoda from the Lower Silurian 
rocks, 199; Upper Llandovery rocks, 
90. 
Hibbert, Mr., 298. 
Hicks, Mr. H., 42, 52, 53, 202, 550. 
Highlands, geology of the north-western, 
163. 
Himalaya, Palaeozoic rocks of the, 17. 
Hind, Prof. J. Y., 438, 440. 
Hisinger, Prof., 221, 223. 
Hitchcock, Dr., 427. 
Hoar Edge, 66. 
Hochstetter, Dr., 12. 
Hof, 373. 
Hoffmann, Col., 345, 454, 459, 474. 
Hofmann, Dr., 139, 258, 542. 
Holl, Dr. H. B., 14, 45, 93-98, 112, 236. 
Hollybush sandstone, 94. 
Holopea concinna, 197. 
Holopella cancellata, 90. 
Homalonotus bisulcatus, 51, 68. 
delphinocephalus, 111. 
Homfray, Mr. D., 46. 
Honeyman, Dr., 438. 
Hooker, Dr. J. D., 241, 259, 270. 
Hook Point, Pembrokeshire, 143. 
Hope Bowdler, 64. 
Hopkins, Mr. W., 3, 494. 
Horner, Mr. Leonard, 93, 97. 
Howard, Hon. J., 547. 
Howse, Mr. E., 310, 328, 336, 338. 
Hudson's Bay territory, 441. 
Hudson -river group, 427. 
Hull, Mr. E., 291. 
Humboldt, Baron, 17, 424, 435, 474, 475, 
537. 
Hunt, Mr. E., 450. 
Hunt, Mr. T. Sterry, 43, 307, 426, 429, 
443-445, 468. 
Huronian rocks, 426, 434. 
Hutton, Mr., 148. 
Huxley, Prof. T. H„ 139, 160, 237, 240, 
266-268, 298, 302, 303, 343, 543. 
Hymenocaris vermicauda, 44. 
Igneous rocks associated with the Lower 
Silurian, 49, 76, 79 ; compared with 
their German equivalents, 537. 
Ilchester, Earl of, 345. 
Ilfracombe, 272, 276. 
Illsenus Davisii, 204. 
Illinois, Palaeozoic rocks of, 546. 
Insect from the Coal-measures, 300. 
Intrusive rocks in the Lower Silurian, 
79. 
Inversions of strata, 403. 
Iowa, geology of, 433. 
Ireland, Carboniferous rocks of, 282 ; De- 
