504 



INDEX. 



New red sandstone series.description of the suc- 

 cessive deposits which compose the, from Par- 

 ton to St. Bees Head, 393. 



. -, lowest member of, in 



the North of England, probably produced by 

 the dislocations which immediately followed the 

 carboniferous period, 58. 



,_^ , deposition 



of, followed by movements of elevation anterior 

 to the magnesian limestone, 58. 

 , once extended in Cum- 



berland over a greater surface than at present, 

 389. 

 . , perfectly analogous to 



the corresponding series of Yorkshire and Dur- 

 ham, 399. 

 . I , section of, near Aid- 



bury, 400. 



, though sometimes con- 

 formable to the carboniferous system in Cum- 

 berland, is not conformable on a great scale, 

 387, 388. 



unconformable among 



last ramifications of the Eden, 390. 



Furness, 391. 



— in Low 

 — , near Ros- 



ley, 387, note. 



between Appleby and 



Maryport, generally conformable to carbonifer- 

 ous series, 391. 



■ near St. Bees Head, 



both conformable, and unconformable, 391. 

 Nicol, Mr., of Edinburgh, slices of fossil wood 



prepared by, 222, note. 

 Nilsson, Professor, of Lund, his Petrifacta Sue- 



cana referred to, 350. 

 ■ , observations by, on 



a deposit resembling the Wealden at Helsing- 



burg, in Scania, 330. 

 Nodular limestone, (Kunkur,) forms a remarkable 



feature in the geology of India, 430. 

 , organic remains in, 



belong to living species, 431. 



Noggerath, Prof., bed of silicified wood at Bruch 

 near Ober Cassel, examined by, 451. 



, fossil remains of quadrupeds 



in the environs of Bonn, mentioned by, 454. 



, on the shells of the brown-coal 



formation of the environs of Bonn, 473. 



Nomenclature of strata, not to be taken from mere 

 external character, 105, note. 



Norfolk, West, general sketch of the geology 

 of, 309. 



, fossils of, in beds below the chalk, 



316, &c. 



North Devon and part of South Wales, grey- 

 wacke series of, elevated probably after com- 

 pletion of carboniferous series, 57. 



, axes of, parallel, 



57. 



North Wales, no obvious centre of dislocation in, 

 67. 



, strata thrown into vast parallel un- 

 dulations, 67. 



■ , probably not produced 



by shocks succeeding after long intervals, 67. 



Northern carboniferous chain, account of the ef- 

 fects produced by the elevation of, 59. 



marked by a system 



of longitudinal faults, 59. 



Nutfield, Surrey, Fuller's earth pits there, 141. 



' ■ contain sul- 

 phate of barytes, 141. 



O. 



OEningen, new fossil species of Chelydra from, 

 described by Thomas Bell, F.G.S., 379. 



Old red sandstone conglomerates of. North of 

 England, often have a much newer appearance 

 than tliose of the new red sandstone, 390, note. 



• in Westmoreland 



occur at several points where the carboniferous 

 chain is in contact with greywacke, 69. 



near 



Hebblethwaite Hall Gill, 97. 



, peculiarities of structure 



region of, in the 



Peninsula of India, of very great extent, 428. 



and position of the schistose rocks of Cumber- 

 land originated in causes anterior to existence 

 of the, 49, 55. 



