460
INDEX.
| page | |
| Basalt in the lead mine measures of Northumberland agrees in situation with the toadstone of Derbyshire | 73 |
| ───── overlying masses of, occur in many parts of the lead mine measures | 74─78 |
| Basaltic dykes. See Dykes | |
| Basaltic veins in the granite and schist of Cruachan | 123 |
| Beadnel Bay, dyke at, described | 102 |
| Belfast Lough, nuts filled with calcareous spar found in | 443 |
| Bennet, The Hon. Henry Grey, on a whin dyke traversing limestone in the county of Northumberland | 102 |
| Bitumen, found in some varieties of the magnesian limestone near Sunderland | 6 |
| Bituminous Limestone, analysis of one, by Dr. Clarke | 430 |
| Blakheath, account of plastic clay beds near | 288 |
| Blende, note on the cleavage of | 257 |
| Bog iron ore, found in the Cheviot hills | 95 |
| Boring, estimate of the expence attending at Roxburg or Berwick | 101 |
| Breccia, occurrence of one of a modern date at Loch Ericht, having a siliceous cement | 266 |
| Brendon Hills, height of the | 437 |
| Bright, Richard M.D. on the strata in the neighbourhood of Bristol | 193 |
| Bristol, Dr. Bright and Mr. Cumberland, on the strata in the neighbourhood of | 193 |
| ─────, sections of the strata near, given by Dr. Bright and Mr. Cumberland | 197 |
| ─────, horizontal beds lying on the edges of the inclined strata in the neighbourhood of | 202 |
| Buckland, The Rev. W. Description of an insulated group of rocks of slate and greenstone, in Cumberland and Westmoreland, on the east side of Appleby, between Melmerby and Murton | 105 |
| ──────────, Description of a series of specimens from the plastic clay near Reading, Berks: with observations on the formation to which those beds belong | 277 |
| ──────────, Description of the paramoudra, a singular fossil body found in the chalk of the north of Ireland, with some general observations upon flints in chalk, tending to illustrate the history of their formation | 413 |
