130 



INDEX. 



Tetragonolepis, fossil species of, i. 

 102. 



Theories, Huttonian and Werne- 

 rian, 43, 411. 



Thompson, Mr., pentacrinus euro- 

 pxus discovered by, i. 325. 



Thomas, Mr. R., map and sections 

 of mining district near Redruth, 

 i. 411. 



Tiedemann, on bones in star-fish, i. 

 332. 



Tilgate forest, reptiles discovered 

 by Mr. Mantell in, i. 99. 



Time, lapse of long periods univer- 

 sally admitted, i, 21 ; proof of 

 long lapse of, i. 96; proof of 

 lapse of, during deposition of 

 strata, i. 285. 



Torpedo, fossil in tertiary strata, i. 

 221. 



Torre D'Orlando, fishes perished 

 suddenly at, i. 102. 



Tortoises, number of existing fa- 

 milies, i. 195 ; divisions of fossil 

 ditto, i. 195 ; extent of fossil spe- 

 cies, i. 195 ; marine species from 

 Glaris, i. 196 ; fossil land spe- 

 cies, rare, i. 197 ; footsteps of 

 in Scotland, i. 198; fresh-water 

 species, locality of, i. 197. 



Tour, supposed of a foreigner 

 through England, i. 13. 



Tours, Artesian wells in chalk of, 

 i. 423. 



Townsend Mr., on origin of springs, 

 i. 416. 



Trachelipods, two sections of, car- 

 nivorous and herbivorotis, i. 225 ; 

 carnivorous, perforate living 

 shells, i. 226; carnivorous rare 

 before the tertiary strata, i. 227 ; 

 herbivorous, extend through all 

 strata to the present time, i. 

 227 ; carnivorous succeeded to 

 functions of extinct carnivorous 

 cephalopods, i. 227, 236. 



Trachyte, character and phenomena 

 of, ii. 7. 



Trap, various phenomena of, ii. 6. 



Transition series, history and extent 

 of, i. 55 ; strata, character of 

 their fossil vegetables, i. 341. 



Transmutation of species, disproved 

 in the case of fishes, i. 223 ; the- 

 ory of, opposed by trilobites and 



animals allied to them, i. 298 ; 

 associated with developement by 

 Lamark, 435. 



Trevelyan, Mr. W. C , his disco- 

 very of coprolites near Leith, i. 

 155. 



Trilobites, geographical and geolo- 

 gical distribution of, i. 294 ; ge- 

 nera and species of, i. 295 ; his- 

 tory and structure of, i. 295 ; 

 living animals allied to, i. 296 

 et seq ; eyes of, i. 299 ; physio- 

 logical inferences from fossil eyes, 

 i. 302 et seq. 



Tryonix, fossil, localities of, i 196. 



Trygon, fossil in tertiary strata, i. 

 221. 



Tucker, his speculation as to pos- 

 sible existences in the interior of 

 the earth, i. 53 ; his views of the 

 relations of the world to man, i. 

 83. 



Tufa, calcareous, local deposites 

 of, ii. 11. 



Turin, bones in museum at, i. 79. 



Tunilite, character and extent of, 

 i. 279. 



Turtles, fossil, i. 195, 196. 



Ulodendron, character of, i. 357. 

 Unity geological argument for the 



unity of the Deity, i. 433, 434, 



435. 



Val D'Arno, bones in fresh water 

 formation of, i. 79. 



Vapour, influence of in causing ele- 

 vations of land, i. 43. 



Vegetables, study of fossil impor- 

 tant, i. 339 ; recent sub-marine, 

 divisions of, i. 339 ; fossil sub- 

 marine, divisions of, i. 340; ter- 

 restrial, geological distributions 

 of, i. 340 ; remains of, preserved 

 in coal formation, i. 344 ; re- 

 mains of in transition strata, i. 

 129, 345; genera, most abundant 

 in coal, i. 360 ; proportions of 

 families in coal formation, i. 360; 

 remains of, in secondary strata, 

 i. 368 ; remains of, in tertiary 

 strata, i. .380 ; numbers of fossil 

 and recent species, i. 370 ; cha- 

 racters of during the three great 

 geological epochs, i. 389 — 391 ; 



