474
INDEX.
| page | |
| Smith, Edward, Esq, on the Stream works of Pentowan | 404 |
| Snowdon, shells found in the slate of, | 425 |
| ─────── height of | 434 |
| Springs, in the neighbourhood of Bristol, their situation 204 | |
| St. Agnes, Rev J. J. Conybeare, on the porphyritic veins of | 401 |
| Strath, in Sky, remarkable trap veins at | 185 |
| Strontian, found near Knaresborough | 445 |
| ────── Sulphate of, found in balls in the sandstone near Bristol 196, 202, 214 | |
| ────────────── on the primitive crystal and cleavage of, | 255 |
| Staurotide, on the primitive crystal of | 250 |
| Syenite, of Sky, described | 169 |
| Taylor, John, Esq. Description of the Tunnel of the Tavistock Canal, through Morwel Down in the county of Devon | 146 |
| ──────────── notice on some appearances in coak | 448 |
| Tin, Oxide of, Mr. Phillips on the cleavage of | 245 |
| Tino, Isle of, notice on the rocks of the | 446 |
| Tintagel, shells found in the slate of | 424 |
| Traill, T. S. M.D. notice of iserine and magnetic iron-sand in Cheshire | 447 |
| Trap, in the vicinity of Cruachan | 137 |
| ────, of Sky described | 178 |
| ────, variety of, called augit rock by Dr. Mac Culloch described | 182 |
| ────, variety of, called hypersthene rock by Dr. Mac Culloch described | 184 |
| ────, account of remarkable veins ol§ at Strath in Sky | 185 |
| ────, Kinnoul Hill composed chiefly of | 221 |
| ─────────────, its varieties there, described | 222 |
| ────, occurs at Micklewood in Gloucestershire | 444 |
| ──── of Kinnoul, both porphyritic and amygdaloidal | 223 |
| ─────────────, its junction with schist | 228 |
| ──── of Sky, additions to the account of | 180 |
| ──── of Irottemish, has the appearance of inter stratification and alternation with the strata it covers | 180 |
