448 



INDEX. 



4 



Lake Huron, Island of St. Joseph in, principal Limestone, compact, recent deposit of, 166. 



divisions of, 182 — 186. with nummulites in India, 167. 



rivers of, of Michilimackinac Island, in Lake Hu- 



186. 



ing on, 188. 



ron, 194. 



geology of the country border- of the lias formation, 300. 



Lithograpliic stone, procured from the lias near 

 primitive rocks of, 188 — 191. Corston and Bitton, 300. 



secondary rocks of, 191 — 204. Little Manitou in Lake Huron, 179, 200. 



limestone of Michilimackinac Is- London clay, bed identical with the, in Barton and 



land in, 194. 

 limestone of St. Joseph in, 195- 



197. 



magnesian limestone of Thessalon 



Island, with orthoceratites in, 195, 198. 

 on the foreign and native debris of. 



204—207. 



• debris transported on ice in, 207. 

 ■ ancient beaches of, 207. 



• trilobite in limestone from, 208. 

 list of some of the recent shells of. 



208. 



Langton Green near Tunbridge Wells, fossil shells 



found at, 173. 

 Lead mines of Farraguhr in India, 148. 



veins of, in toadstone, Derbyshire, 163. 



Leigh Down, 296. 



in the western frontier of the Bristol 



coal basin, 236, 251. 

 Lias, blue, of the coast of Dorset, 42. 

 organic remains in, 43. 



High Cliffs, Hants, described, 93. 

 Livonia, 12. 

 Lyme Regis, an almost entire skeleton of the ple- 



siosaurus found at, 381. 



M, 



MacCuUoch, John, M.D., supplementary remarks 



on quartz rock, 53. 

 further remarks on 



quartz rock, 56. 

 additional remarks on 



Glen Tilt, 61. 

 Magas Pumilus found in the chalk of Norfolk, 376. 

 Magnesian limestone of Thessalon Island in Lake 



Huron, with orthoceratites, 195, 198. 

 the term Dolomite substitut- 



ed for, 211 Note. 



in Mendip Hills, 232. 



Magnetic sand in Isle of Valaam, 8. 



— extent of, in Calvados and La Manche, 81, Malvern Hills, reasons for not considering the rocks 

 82. of, primitive, 353. 



— alternation of white and blue, 100. Malayan peninsula, 406. 



— of south-western coal district of England de- Manganese, black oxide of, in Warwickshire, 168. 



scribed, 300. 



of the environs of Tortworth, 350. 



at Fretherne cliff on the Severn, 370. 



Limestone, primitive, in gneiss, Pargas, 4. 



veined, of Onega, 8. 



secondary, 11. 



containing pentacrinite, &c., 15. 



oolitic, of Cazan, 29. 



district, central, of Russia, 33. 



gray, containing minute adrepores, 34. 



primary, in Glen Tilt, 62. 



primitive, on the banks of the Sutluj, 126. 



with nummulites, 136. 



Manitouline Islands in Lake Huron, 176, 177. 



limestone of, 199—204. 



organic remains in, 202. 



Mantell, Gideon, Esq., notice accompanying some 



specimens from the blue chalk marl of Bletcli- 



ingley, 42 1 . 

 fossil plants found at Cuck- 



field, 421. 

 Marble, yellow, containing enchrini and terebra- 



tulites, 33. 



containing Anomites productus, 33. 



of a pink colour in Glen Tilt, 62. 



Marl, white, 29. 



