INDEX. 



131 



connexion of with physico-theo- 

 logy, i. 492. 



Veins, mineral, origin and disposi- 

 tion of, i. 409, 411 j most fre- 

 quent in early rocks, i. 410; 

 theories respecting - origin of, i. 

 411 ; apparatus for production 

 of, i. 42i ; granitic, intersecting 

 older granite, ii. 4; of sienite, 

 porphyry, serpentine and green- 

 stone, intersecting other rocks, 

 ii. 5 ; mineral, influence of elec- 

 tro-magnetic action in, ii. 107 — 

 109. 



Vertebrata, represented by fishes 

 in the transition formation, i. 56. 



Volcanoes, present effect of, i. 46. 



Volcanic forces, their effects on 

 the condition of the globe, i. 47. 



Volcanic rocks, frequent in tertiary 

 strata, i. 76 ; of modern forma- 

 tion, ii. 7. 



Voltz, M., on Mantellia from Lune- 

 ville, i. 369. 



Voltzia, genus of conifene in new 

 red sandstone, i. 364. 



Watchet, nacre of ammonites pre- 

 served in lias at, i. 283. 



Waters, not created on the third 

 day of Mosaic cosmogony, i. 30 ; 

 sources of mineral and thermal 

 in faults, i. 424. 



Water, its rank in geological dyna- 

 mics, i. 33 ; supplied to springs 

 by stratified rocks, i. 62 ; its 

 agency in preserving organic re- 

 mains, i. 104; circulation of in 

 metallic veins, i. 408 ; perpetual 

 circulation and functions of, i. 

 416. 



Watt, his experiments on crystalli- 

 zation of bodies cooled slowly, i. 

 41. 



Webster, Mr., section prepared by, 

 ii. 2. 



Weinbohla, sienite, intersecting 

 and ov<Wvj n g chalk at, ii. 5. 



Weis, professor, his account of 

 bones of Megatherium, i. 127 ; 

 his belief that the megatherium 

 had armour, i. 128. 



Wells, causes of rise of water in, i. 

 418. 



Werner, his theory of the forma- 

 tion of stratified rocks-, i. 43 ; of 

 veins, i 411. 



Wheatstone Prof., on crystals pro- 

 duced by electro-chemical action, 

 i. 412. 



Whewell, Mr., his view of the 

 nebular hypothesis, i. 40. 



Whitby, ammonites from, i. 256. 



Wielieska, salt in tertiary formation, 

 i. 63. 



Winds, effect in causing undula- 

 tions during the formation of 

 stone in Portland, i. 371 ; effect 

 in forming strata in Bermudas 

 and in Cornwall, i. 154. 



Witham, Mr., his publications on 

 fossil coniferae, i. 363, 364, 366. 



Worm holes, fossil, i. 198. 



Yarrell, Mr., on the vision of birds, 

 i. 136. 



Zamia pungens, mode of inflores- 

 cence, i. 371. 



Zamia spiralis, buds on trunk of, i. 

 375. 



Zamia horrida, section of trunk of, 

 i. 373. 



Zeiten, M., his description of fossil 

 pens and ink bags in Wirtem- 

 berg, i. 233. 



Zoology, study of, indispensable to 

 geology, i. 92. 



THE END. 



