INDEX. 



A 



Abo, variety of gneiss at, 5 . 



Actinolite in Glen Tilt, 71. 



Adularia in Glen Tilt, 68. 



Alabaster, 27. 28. 34. 



Alluvial strata of* Norfolk and Suffolk, Richard 

 Taylor, Esq. on the, 374. 



Alluvium of south-western coal district of Eng- 

 land, 308. 



Bog iron ore, in, 347. 



Alveston Down, on west frontier of Bristol coal 

 basin, 247. 



Ammonites, 80. 



species of, in lias, 46. 



in blue clay at Vaches 



Noires, in Calvados, 78. 



Amygdaloidal trap, 248. 



Ancient beaches : see Beaches, ancient. 



Anomia producta, impressions of, in millstone grit, 

 252. 



Arabia, serpentine at the Cove of Muscat in, 409. 



Aral lake, supposed ancient connexion with Cas- 

 pian Sea, 37. 



Argillaceous slate in Calvados and La Manche, 86. 



Attica, the rocks of, described, 171. 



Avon river, defile of the, 222. 244. 



coal measures on the banks of, 257. 



Aust cliff, mountain limestone at the base of, 247. 



marl of new red sandstone at, 298. 



remarkable examples of faults in the lias 



and new red sandstone at, 304. 



Axe, exact correspondence in the strata on the op- 

 posite sides of the valley of the, 100. 



3 



B 



Babbacombe bay, geology of the coast from Brid- 



port harbour to, 40. 

 Bagshot sand, extent of, 48. 



relative position of, 48, A9. 



sterility of, 49. 



• a regular stratum, 50, 5 1. 



fossil shells peculiar to the, 5 1 . 



— green clay of, at Chobham park like 



that of Menil Montant, 5 1 . 

 Barnoucova, description of the rocks and cavern of, 



27. 



Basalt, columnar, at Mundisoor in India, 156. 



Beaches, ancient, on the coast of Chili, parallel to 

 the present sea beach, 415. 



of the Isle of Jura, 416. 



of Lake Huron, 207. 



Bedminster coal field in Somersetshire, 366. 



Beetle fossil in Stonesfield slate, 392. 



Bencoolen in Sumatra, account of the country near, 

 401. 



specimen of chalk from, 405 . 



Bengal, geology of the north-east border of, 132. 



fossil organic remains in, 135. 



Berapi, volcanic mountain in Sumatra, 400. 



Bermuda islands, resemblance of, to a coral reef, 

 172. 



Bhotan, geology of the hills of, 137. 



Bigsby, John J., M D., on the geology and geogra- 

 phy of Lake Huron, 175. 



Birds, fossil remains of, in Stonesfield slate, 392. 



. in iron sand at Cuckfield, 



394. 



l2 



