INDEX. 



107 



nmingham, manner in which the crag 

 trata rest on the chalk near see dia- 

 ram No. 30, 173 



- view of a promontory of chalk and 

 rag near see wood-cut No. 41, 179 



section of the northern protuberance 

 f chalk at see wood-cut No. 42, 180 

 lolitza, plain of, breccias now forming 

 i the, 144 



a, calcareous, the hills of Rome capped 

 y, 138 



- tusk of the mammoth found in, near 

 lome, 138 



f, dikes of, how formed, 70 



- in the hill of Novera see diagram 

 Jo. 8, 70 



volcanic, recent shells in, near Na- 

 .les, 126 



- shells found in, at great heights in 

 schia, 126 



in, tertiary formations of, 211 



fossil shells of see Tables, Appendix I. 



icany, fresh-water formations of, 137 



age of the volcanic rocks of, 183 



de valla, elevated beaches of, 135 



conformability of strata, remarks on 



he, 30, 33 



iversal formations, remarks on the 



heory of, 38 



iversality of red marl, remarks on the 



iupposed, 333 



of certain hypogene rocks, 376 



per marine formations of the Paris basin 

 low formed, 248 



i d'Arno, Upper, mineral character of 

 he lacustrine strata of the, 161 



fresh-water formations of the, 219 



mammiferous remains of the, 220 



. del Bove, great valley on east side of 

 Etna see wood-cut No. 17, 83 



its length, depth, &c., 84 



description of the, 87 



its circular form, 87 



dikes numerous in the, 87 



dip of the beds in the, 87 



section of buried cones seen in, 88 



difference in the dip of the beds 

 kvhere these occur, 88 



scenery of the, 88 



form, composition, and origin of the 

 dikes in, 90 



view of, from the summit of Etna 

 see wood-cut No. 22, 93 



lavas and breccias of the, 93 



origin of the, 95 



floods in, caused by melting of snow 

 by lava, 96 



Idemone, formations of, 75 



1 di Calanna, its crateriform shape, 85 



dip of the beds in the, 85 



Val di Calanna, its origin, 85 



began to be filled up by lava in 1811 



and 1819 see wood-cut No. 18, 86 

 Val di Noto, formations of the, 63 

 divisible into three groups see dia- 

 gram No. 5, 64 



volcanic rocks of the, 63, 67 



volcanic conglomerates of the, 73 



" proofs of the gradual accumulation of 



the formations of the, 73 

 connexion of the formations of the, 



with those at the base of Etna see 



diagram No. 12, 76 

 form of the valleys in the limestone 



districts of the, 110 

 inland cliffs seen on the east side of, 



111 



igneous rocks of the, 361 



fossil shells from the see Appendix 



II., p. 53 



Vale of Pewsey, 308 

 Valley of the Nadder, 308 



of the Weald see Weald 



Valleys, of elevation, 305 



on Etna, account of, 83 



of Sicily, their form see wood-cut 



No. 23,110 



most rapidly excavated where earth- 

 quakes prevail, 113, 148 

 - and parallel troughs between the 



North and South Downs, how formed, 



294 

 transverse, of the North and South 



Downs, 298 

 how formed see wood-cut No. 74, 



300 

 and furrows on the chalk, how 



caused, 311 

 of the South-east of England, how 



formed, 319 

 Valmondoi's, rolled blocks of calcaire gros- 



sier in the upper marine sandstone of, 



249 

 Valognes, tertiary strata of the environs of, 



fossil shells of see Tables, Appen- 

 dix I. 



Van der Wyck, M., on the Eifel district, 

 201 



Var, river, large quantities of gravel swept 

 into the sea by the, 168, 169 



Vatican, hill of the, calcareous tufa on the, 

 138 



Veaugirard, alternation of calcaire grossier 

 and plastic clay at, 244 



Veins of lava on Etna see wood-cut No 

 20, 91 



Velay, bones of extinct quadrupeds in vol- 

 canic scoriae in, 219 



fresh-water formations of, 235 



age of the volcanic rocks of, 224 



260, 262 



