INDEX. 
127 
Theories, Huttonian and Wernerian, 
i. 44,551. 
Thompson, Mr., pnlacrinns europmns 
discovered by, i. 432. 
Thomas, Mr. K., map and sections of 
mining district near Redruth, i. 550. 
Tiedemann, on bones in star-fish, i. 
441. 
Tilgate forest, reptiles di-scovered by 
Mr. Mantell in, i. 120. 
Time, lapse of long periods universally 
admitted, i. 13 ; proof of long lapse 
of, i. 1 l(j ; proof of lapse of, during 
deposition of strata, i. 377. 
Torpedo, fossil in tertiary strata, i. 291 . 
Torre D’Orlando, fishes perished sud- 
denly at, i. 124. 
Tortoises, number of existing families, 
i. 255 ; divisions of fossil ditto, i. 
256 ; extent of fossil species, i. 256; 
marine species from Glaris, i. 257 ; 
fossil land species, rare,!. 258 ; foot- 
steps of in Scotland, i. 2-59 ; fresh- 
water species, locality of, i. 258. 
lour, supposed of a foreigner through 
England, i. 1. 
Tours, Artesian wells in chalk of, i. 
566. 
Townsend, Mr., On origin of springs, i. 
560. 
Traclielipods, two sections of, carnivo- 
rous and herbivorous, i. 297 ; carni- 
vorous, perforate living shells, i. 
298 ; carnivorous rare before the ter- 
tiary strata, i. 299 ; herbivorous, ex- 
tend through all strata to the present 
time, i. 299 ; carnivorous, succeeded 
to functions of extinct carnivorous 
cephalopods, i. 300, 312. 
Trachyte, character and phenomena 
of, ii. 7. 
Trap, various phenomena of, ii. 6. 
Transition series, history and extent of, 
i. 60 ; strata, character of their fossil 
vegetables, i. 453. 
Transmutation of species, disproved in 
the case of fishes, i. 294 ; theory of, 
opposed by trilobiles and animals 
allied to them, i. 395; associated 
with development by Lamarck, 585. 
Trevelyan, Mr. W. C., his discovery of 
coprolites near Leith, i. 199. 
Trilobites, geographical and geological 
distribution of, i. 389 ; genera and 
species of, i. 391 ; history and struc- 
ture of, i. 391 ; living animals allied 
to, i- 392 et setj. ; eyes of, i. 396 ; 
physiological infer mces from fossil 
eyes, i. 401 ct seq 
Tryonix, fossil, localities of, i. 257. 
Trygon, fossil in tertiary strata, i. 291. 
Tucker, his speculation as to possible 
existences in the interior of the earth, 
i. 57 ; his view of the relations of the 
world to man, i. 99. 
Tufa, calcareous, local deposits of, ii . 
Turin, bones in museum at, i. 93, 
Turrilite, character and extent of, i. 
370. 
Turtles, fossil, i. 256, 257. 
Ulodendron, character of, i. 475. 
Unity, geological argument for the 
unity of the Deity, i. 582, 583, 584. 
Val D’Amo, bones in fresh water 
formation of, i. 93. 
Vapour, influence of in causing eleva- 
tions of land, i, 43. 
Vegetables, study of fossil important, i. 
450 ; recent sub-marine, divisions 
of, i. 451 ; fossil sub-marine, divi- 
sions of, i. 452 ; terrestrial, geologi- 
cal distributions of, i. 452 ; remains 
of, pre-served in coal formation, i. 
457, 458 ; remains of in transition 
strata, i. 163, 459 ; genera, most 
abundant in coal, i. 479 ; proportions 
of families in coal formation, i. 480 ; 
remains of, in secondary strata, i. 
490 ; remains of, in tertiary strata, i. 
507 ; numbers of fossil and recent 
species, i. 521 ; characters of during 
the three great geological epochs, i. 
620 — 522 ; connection of with pliy- 
sico-theology, i. 523. 
Veins, mineral, origin and disposition 
of, i. 548, 550 ; most frequent in 
early rocks, i. 549 ; theories respect- 
ing origin of, i. 551 ; apparatus for 
production of, i. 670 ; granitic, in- 
tersecting older granite, ii. 4 ; of sie- 
nite, porphyry, serpentine and green- 
stone, intersecting other rocks, ii. 5 ; 
mineral, influenceof electro-magnetic 
action in, ii. 107 — 109. 
Vertebrata, represented by fishes in the 
transition formation, i. 62. 
Volcanos, present effect of, i. 47. 
Volcanic forces, theii’ effects on the 
condition of the globe, i. 49. 
\olcanic rocks, uequent in tertiary 
strata, i. 89; of modern for.mation. 
ii. 7. 
Voltz, M., on mantellia from LunevilJe. 
i. 492. 
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