INDEX.
465
| page | |
| Glen Roy, examination of the first hypothesis─a deluge or large torrent | 352 |
| ──────────────── second hypothesis; remains of water terraces | 362 |
| ──────────────── third hypothesis—a lake occupying the valley | 367 |
| ────────, difficulties attending the third hypothesis | 374 |
| ────────, position of the boundaries of the supposed lake | 375-384 |
| ────────, the third hypothesis the most probable | 374-380 |
| ────────, the level of the sea supposed to be marked by these lines | 390 |
| Glen Turit, traces of parallel roads in, described | 332 |
| Glenwhelt, the highest land in England in the parallel from Newcastle to Carlisle | 57 |
| Gneiss, of peculiar character, occurs in the promontory of Sleat in Sky | 159 |
| ──────, transition between it and graywacke and sandstone | 161-165 |
| Goniometer, common, not calculated to measure crystals with perfect accuracy | 237 |
| ─────────, reflecting, measurement of crystals by the | 233-241 |
| Granitic rocks, detached masses of, compose the hill of West Down in Devonshire | 147 |
| Granite, found at Dufton Pike in Westmoreland | 109 |
| ───────, junction of, with the schist at Cruachan | 120 |
| ───────, the country near Cruachan appears to consist chiefly of | 125 |
| ───────, its extent there | 128 |
| ───────, crowns the summit of Kithill in Devonshire | 147 |
| ───────, deposit of upon the schist at Cligga point | 402 |
| Granite veins, penetrate the schist of Cruachan at its junction | 120 |
| ───────────, in slate in the Mourne Mountains | 443 |
| Gravel, of Litchfield, Mr. Aikin's observations on | 426 |
| Greenstone and Slate, group of rocks of, described | 105 |
| Graywacké slate, found in the Cheviot hills | 94 |
| ──────── series, transition between it and gneiss in Sky | 161 |
| Grouan, a Cornish term applied to clay porphyry | 152 |
| Hangman Hill, height of | 437 |
