106 
INDEX. 
Table-Mountain, [Cape of Good Hope, in- 
tersected by veins — see wood-cut No. 
85, 354 
Tanaro, plains of the, 211 
Taro, river, nature of the sediment depo- 
sited by the, 161 
Taunus, beds and large quartz veins found 
in the mountains of the, 201 
Tech, tertiary strata in the valley of the, 170 
Ter, valley of the, 185 
Teronel, river, lava excavated by the, 189 
Terraces, manner in which the sea de- 
stroys successive lines of — see wood-cut 
No. 24, 111,292 
Terranuova, dip of the'tertiary strata at, 74 
Tertiary formations, general remarks on 
the, 15 
• of the Paris basin, 16, 241 
at first all referred to (he age of those 
of the Paris basin, 17, 19 
origin of the European, at successive 
periods, 18 
of the sub-Apennine hills, 18 
of Touraine, 20 
. of Bordeaux and Dax, 20 
of Piedmont, 20 
of the Valley of the Bormida, 21 
■ of the Superga, near Turin, 21 
of the basin of Vienna, 21 
newer than the sub -Apennines, 21 
the newest often blend with those of 
the historical era, 22 
different circumstances under which 
these and the secondary formations may 
have originated, 23, 329 
— — state of the surface when they were 
formed, 24 
classification of, in chronological 
order, 45 
new subdivisions of the, 52 
— — numerical proportion of recent shells 
in different, 53, 54, 55, 58 
mammiferous remains of successive, 
59 
■ - ' Synoptical Table of Recent and, 61 
• of Sicily, 63 
of Campania, 118 
of Chili and Peru, 130 
of the West India Archipelago, 132 
of the East India Archipelago, 133 
of Norway and Sweden, 135 
on the western borders of the Red 
Sea, 135 
identity of their mineral composition 
no proof of contemporaneous origin, 161 
of the Po, Arno, and Tiber, their re- 
semblance, 161 
at the base of theMaritime Alps, 164 
— — at the eastern extremity of the Py- 
renees, 170 
in Spain, 170 
■ in the Morea, 170 
of England, 18, 19, 135, 171, 277 
Tertiary formations, of Touraine, 20, 203 
of the basin of the Gironde and the 
district of the Landes, 206 
of Piedmont, 211 
of Switzerland, 212 
■ of Styria, Vienna, Hungary, &c, 212 
of Volhynia and Podolia, 215 
of Montpellier, 215 
of Auvergne, 217, 226 
■ofVelay, 219, 235 
of the Orleanais, 219 
■ of the Upper Val d'Arno, 219 
of Cadibona, 221 
• of the Cantal, 236 
— — of the Cotentin, or Valognes, 276 
— — of Rennes, 276 
■ ■ of the Netherlands, 276 ] 
- of Aix in Provence, 276 
no species common to the secondary 
and, 327 
Testacea, fossil, of chief importance, 47^ 
marine, wide range of, 44, 48 
longevity of the species of, 48, 56 
Tet, valley of the, tertiary strata found 
in, 170 . 
Thames, basin of the, 18 
Theorizing in geology, different methods 
of,l 
Tiber, river, has flowed in its present 
channel since the building of Rome, 138 
yellow sand deposited by the, 161 
valley of the, 139 
Time, effects of prepossessions in regard to 
the duration of past, 97 
Touraine, tertiary strata of, 20, 203 
and Paris, relative age of the tertiary 
strata of — see diagram No. 3, 20 
fossil shells of — see Tables, Appendix I. 
Trachytic breccias and alluviums alternat- 
ing in Auvergne, 217 
Transition formations, remarks on, 13 
Transverse valleys in the North and South 
Downs — see wood-cut No. 73, 298 
remarks on their formation, 299 
supposed section of one of them — 
see wood-cut No. 74, 300 
Transylvania, tertiary formations of, 213 
age of the tertiary strata of, 215 
■ volcanic rocks of, 223 
fossil shells of — seeTables, Appendix I. 
Trap rocks, origin of the term, 360 
of Scotland, how formed, 360 
passage of, into granite, 361 
Trass of the Rhine volcanos, 197 
— — - its origin, 198 
Travertins of the valley of the Elsa, 137 
of Rome, recent shells with the tusk 
of the mammoth found in, 138 
Trees, longevity of, 99, 272 
Trezza, bay of, sub-Etnean formations ex- 
posed in the, 78 
proofs of sub-marine eruptions in the 
78, 81 
