92 



INDEX. 



Doue, M. Bertrand de, on Auvergne allu- 

 viums under lava, 267 



Du Bois, M., on the tertiary strata of/Vol- 

 hynia and Podolia, 215 



Dufrenoy, M., on the limestone of. Blaye, 

 near Bordeaux, 209 



on the hill of Gergovia, 258 



on the age of the red marl and rock- 

 salt of Cardona, 333 



Durance, river, land-shells brought from 

 the Alps into the Rhone by the, 48 



Dunwich, thickness of the crag strata in 

 the cliffs near, 172 



Dunwich, dip of the crag strata in a cliff 

 between Mismer and see wood-cut 

 No. 33, 175 



Dunes, near Calais, ripple marks formed 

 by the winds on the see wood-cut, No. 



* 36, 176 



Earthquake, Olot destroyed by, in 1421, 

 191 



of Cutch, effects of the, 104, 249, 



318 



Earthquakes, their effects on the excava- 

 tion of valleys, 113 



during the Eocene period, 312 



Earth's crust, signs of a succession of for- 

 mer changes recognizable in, 1 



arrangement ot the materials compos- 

 ing the, 8 



Earth's surface may be greatly changed in 

 one part while an adjoining tract re- 

 mains stationary, 128 



East Indian Archipelago, tertiary forma- 

 tions of the, 133 



Ehrenhausen, coralline limestone of the 

 hills of, 214 



Eichwald, M., on the tertiary deposits of 

 Volhynia and Podolia, 215 



Eifel, volcanos of the, 193 



map of the volcanic district of the 



see wood-cut No. 48, 194 



-lake-craters of the see wood-cut, 

 No. 49, 195 



trass of the, and its origin, 197 



age of the volcanic rocks of the, 199 



Elevation of land, how caused, 105 



Elevation, proofs of successive, 111 



Elsa, valley of the, fresh-water formations 

 of, 137 



England, tertiary strata of, 19, 135, 171, 

 284 



comparison between the tertiary 

 strata of Paris and those of, 282 



tertiary strata of, conformable to the 



chalk, 282 



origin of the tertiary strata of, 284 



great line of chalk escarpment 



through the central parts of, 315 



elevation of land on the east coast of, 

 since the Older Pliocene period, 316 



England, elevation of land gradual in the 

 S.E. of, 318 



on the excavation of valleys in the 



S.E. of, 319 



Enza, river, nature of the sediment depo- 

 sited by the, 161 



Eocene period, derivation of the term, 55 

 ' proportion of living species in the 

 fossil shells of the, 55 



position of the beds referrible to 



this era see diagrams Nos. 3 and 4, 

 20, 21 



geographical distribution of the re- 

 cent species found in the, 55 



mammiferous remains of the, 59 



fresh-water formations of the, 



225 



' marine formations of the, 241 

 our knowledge of the physical geo- 

 graphy, fauna and flora of the, conside- 

 rable, 254 



- volcanic rocks of the, 257 



1 map of the principal tertiary basins of 



the see wood -cut No. 62, 275 

 earthquakes during the, 312 



alluviums of the, 317 



chasm between the newest second- 

 ary formations and those of the, 328 



great volume of hypogene rocks 



formed since, 381 



- number of species of fossil shells 

 common to different formations referri- 

 ble to the, Appendix I., p. 49 . 



number of living species in the fossil 



shells of the, ib., 50 



- number common to the Pliocene, 

 Miocene, and, ib. t 50 



geographical distribution of the liv- 

 ing species found in the, ib., 51 



Eocene strata in the Bordeaux basin, 208 



its' relative position see wood-cut 



N No. 52,209 



Epomeo, shells found in volcanic tuff near 

 the summit of, 126 



Erratic blocks of the Alps, 148 



transported by ice, 149 



Escarpments, manner in which the sea 

 destroys successive lines of, 111, 292 



Escarpments of the chalk in the Weald 

 valley, once sea-cliffs see wood-cuts, 

 Nas. 65 and 66, 289,291 ' 



Estuary deposits, arrangement of, 9 



Eternity of the earth, or of present system 

 of changes not assumed in this work, 

 383 



Etna, marine and volcanic formations at 

 its base, 75 



view of, from the limestone platform 



of Primosole see diagram No. 11, 75 



connexion of the strata at its base 



with those of the Val di Noto see 

 diagram No. 12, 76 



