618 



INDEX. 



chain, and through the tertiary deposits of 

 Styria, &c., 301. 



Mureck, description of the tertiary strata in the 

 neighbourhood of, 392, 



Murhur, notice of the formations at, 193. 



Muriate of soda obtained from the red beds of 

 the magnesian limestone near Mansfield, Not- 

 tinghamshire, Si note and 100 note. 



Murkle Bay, Caithness, description of the cliffs of, 

 133. 



Murray Firth, account of the secondary deposits 

 of the, 144. 



. cornstone of, analogous beds of, in 



the county of Sutherland, 153. 



range of the old red conglomerates 



on the shores of the, 127. 

 subdivision of the secondary forma- 



tions on the southern siiore, arbitrary, 150. 

 . transverse sections of the secondary 



system on the southern shores of the, 150. 



quarries of cornstone, 151. 



notice of the existence of lias on the 



southern side of the, 487. 



Muschel kalkstein, no representative among the 

 rocks of England, 38. 



Mytili, casts of bivalves resembling, found in red 

 and green sandstone in the valleys of St. Jo- 

 hann and Rosenthal, 308. 



Mytilvs squamosus, found in abundance near Fer- 

 rybridge, 120. 



N. 



Nagound, notice of limestone containing stems of 

 ferns and gryphite shells near, 193. 



Necker, M. Albert, extract from his memoir on 

 metalliferous deposits with regard to rock for- 

 mations, 494. 



Nermada, structure of the valley of, 194, 197, 

 199. 



Nesselwang, the lignites of, form a lower portion 

 of the tertiary system, 337. 



transverse section through, 335. 



Netherlands, reference to D'Omalius d'Halloy's 

 account of the mines of the, 497 note. 



Neue Welt, the valley of, filled with deposits si- 

 milar to those of Gosau, 3G5. 



Neukirchen, large boulder of gneiss rests on ter- 

 tiary strata near, 40G. 



Newhaven, list of fossils found in the plastic clay 

 at Castle Hill, 204. 



New red sandstone, causes of error in classifying 

 distant portions of, 38. 



natural divisions of, including 



the magnesian limestone system, 121. 



comparison of, with the equi- 



valent formations of central Germany, 121. 

 section of, in the descent from 



Brois towards Bregho, 188. 

 — series, on the lower portions 



of the, in Nottinghamshire, Derbyshire, York- 

 shire and Durham, 37. 

 and conglomerate, description 



of, on the shore south of Loch Ranza, 24. 

 * no granite 



pebbles found in the conglomerate, 25, 34 and 



note. 

 inference 



drawn from their absence, 34. 

 Nice, Dr. Buckland, on the secondary formations 



between, and the Col di Tendi, 187. 

 H. T. De la Beche, Esq., on the environs 



of, and the coast thence to Vintimiglia, 171. 

 M. Verany'smeasurementsof the heights of 



the principal mountains near, 171. 



— divisions of tertiary formations in the neigh- 

 bourhood of, 175. 



description of the superior division, 



consisting of sand, sandstone, and conglomerate, 

 described, 175. 

 middle division, or 



blue marl, 176. 

 • lowest division, or 



grey marl, sandstone and breccia, 177. 

 — light-coloured limestone and dolomite of. 



described, 182. 

 with green grains 



near, compared to the mulatto of Antrim, 181. 

 — — secondary formations in the neighbourhood 



of, described, 178. 

 Nid, near Knaresborough, beds of bright yellow, 



dendritic, crystalline limestone occur in the left 



bank of the, 90. 



