548 



INDEX. 



PAGE- 



Bennet^ the Hon. H. G. Some account ofthe Island orTeiierifTe 28() 



Berger, Dr. Mineralogical account of the Isle of ^ian . . 29 



Bimlcad, Isle of Wi^ht, Strata at . . . . . 212 



Bistre, on the nature of ...... . 27 



Bitumena, Analogy between these and certain Products ob- 

 tained in the Distillation of Wood .... 8 



Bomor, Rocks at 190 — 208 



Bogs, Account of the black matter deposited in . . 24 



Boharm, Mincralogical Observations on the Neighbourhood of 4jO 



Bo'cclders, 0])servations on the Formation of . . . 71 — 78 



Bradford, Coalfield of, account of the .... 282 



Brentford, Strata at 198 



Brighton, ClifFs at " . 176 



Brine Springs at Droitwichj account of the ... 94 



Bromleij, Strata at . 196 



Burnt-Island, Compound Vein of Limestone and Basalt^ tra- 

 versing the Amygdaloid at ..... . 440 



Calbourne, Isle of Wight, Quarries at . . . . . 228 



Calcaire Grassier, in the Paris Basin 201 



Chabasite of Stafia 504 



Chalcedony, Vegetable Remains preserved in . . . 510 



i Green, of the Island of Rum .... 403 



Chalk, on the Strata lying over the . . . . . 161 



-. of the South of England ...... 173 



without flints, 174 — with flints, 174 — Grev, 174 — hard 



and soft, 174 — of France, 175 



Chalk Marl, in the South of England 173 



Cheese Wring, one ofthe Granite Tors of Cornwall^ described 69 



Chlorite, peculiar forms of, in Chalcedony . . . . 512 



Chlorophane, found in Cornwall ...... 344 



Chrysalis of a lepidopterous Insect inclosed in Chalcedony 527 



C/«^, Plastic, above the Chalk in England . . . . 166 



London, description of the . . . . . 187 



Clay Porphyry, Vein of, near St. David's .... 88 

 Clay-slate of the Isle of Man . . . . . , 37 

 — — Remarkable variety of ..... 431 



