INDEX. 
Trees, fossil, rendered bituminous. 
Tufa, silicious, of the Geyser, 
Umbria, fossil ■wood of. 
Page 
189 
325 
.... 104 
Vegetable mould, .... .... .... 81 
Vegetables, constituents of, .... .... 72 
Vegetables, first step to the mineralization of, 80 
Vegetables, food of, .... .... .... 76 
Vegetables, fossil, difficulty of ascertaining their 
kind, .... .... .... .... 416 
Vegetables, impressions of, .... .... 412 
Vegetables, resolution of, into their first principles, 7 9 
Velino lake of, .... .... .... 365 
Velinus, cataracts of, .... .... .... 365 
Vine, petrified, .... .... .... 393 
Walnut, fossil, .... .... .... 438 
Waters, incrustating, .... .... .... 361 
Waters, incrustating, of England, .... 362 
Waters, incrustating, of Italy, &c. .... 363 
Waters, silicious, .... .... .... 322 
Waters, silicious, of Bath, .... .... 324 
Waters, silicious, of Carlsbad, 324 
Waters, silicious, of Iceland, .... .... 324 
Willow, petrified, .... .... .... 393 
Wood, bituminous, .... .... .... 102 
Wood, bituminous, of Bovey, near Exeter, de- 
scribed by Dr. Milles, .... .... 109 
Wood, bituminous, of Bovey, the present state 
of, described, .... .... .... 123 
Wood, bituminous, of Germany, described by 
Hollman, 105 
Page 
Wood, bituminous, silicized, .... .... 330 
Wood, bituminous, treated of by various authors, 101 
Wood, eaten by ship-worm, petrified, 408 
Wood, fossil, at Sutton, in Lincolnshire, .... 68 
Wood, fossil, dug up in various parts of England, 60 
Wood, fossil, impregnated with copper, .... 388 
Wood, fossil, impregnated with iron, .... 384 
Wood, fossil, impregnated with silver, .... 390 
Wood, fossil, mentioned by various authors, 54 
Wood, fossil, metallic, .... .... .... 384 
Wood, petrified, agatine, .... .... 333 
Wood, petrified, aluminous, .... .... 383 
Wood, petrified, calcareous, from Bath, .... 375 
Wood, petrified, calcareous, from Charmouth, 375 
Wood, petrified, calcareous, from Oxfordshire, 375 
Wood, petrified, calcareous, chemical analysis of, 377 
Wood, petrified, calcedonic, .... .... 331 
Wood, petrified, jasperized, .... .... 333 
Wood, petrified, jasperized, chemical examina- 
tion of, .... .... .... .... 334 
Wood, petrified, opaline, .... .... 337 
Wood, petrified, opaline, chemical examination of, 347 
Wood, petrified, silicious, .... .... 330 
Wood, petrified, wonderful nature of, .... 50 
Wood, pyritous, .... .... .... 282 
Wood, pyritous, formation of, .... .... 289 
World, antediluvian, abounding in vegetables, 252 
Xanthus of Lydia speaks of secondary fossils, 15 
Zenophanes mentions secondary fossils, .... 15 
Yew, petrified, .... .... .... 65 
