466
INDEX.
| page | |
| Heliotrope, occurs in the trap of Kinnoul | 227 |
| Helvellyn, height of | 436 |
| Hœmatite found in the Cheviot hills | 95 |
| Hennah, Rev. Richard, Observations on the limestone of Plymouth | 410 |
| Holy Island, clay ironstone formerly collected on, by the Carron Company | 67 |
| Hony, the Rev. W.E. Geological Remarks on the Vicinity of Maestricht | 310 |
| Hornblende rock, found in the Cheviot hills | 95 |
| ───────── schist, alternates with gneiss at Sleat in Sky | 160 |
| Huel Peever, Mr. William's account of the veins of | 139 |
| Hastings, height of hills near | 437 |
| Hypersthene rock, rock of the trap family so called | 184 |
| Infiltration, process of, by which veins are formed | 395 |
| Ingleborough, height of | 435 |
| Iron, ores of; found in Northumberland and Durham | 85 |
| Iron pyrites, found abundantly in coal and shale; sold to the manufacturers of green vitriol | 19 |
| Iron sand, magnetic, found by Dr. Traill in Cheshire | 447 |
| Iron, specular, on the primitive crystal and cleavage of | 251 |
| Iron work, one only now remaining in Northumberland | 67 |
| Iserine, found by Dr. Traill in Cheshire | 447 |
| Jasper, its resemblance in character to porphyry | 134 |
| Junction of granite and schist at Cruachan | 120 |
| ────── of trap and schist at Kinnoul | 228 |
| Killas, traversed by beds of other rocks in Devonshire | 151 |
| ────, Dr. Mac Culloch on certain colours in | 398 |
| ────, the principal rock from the borders of Dartmoor along the Tavy | 146 |
| ────, extends to the coast, and joins the Plymouth limestone | 148 |
| ────, of Devonshire intersected by metallic veins | 148 |
| ────, altered in its texture by a cross course | 154 |
