480 



INDEX. 



Faults in strata, related to mineral 



spring?, 154, 157. 



, Alph., on the geology of 



Alps, 328; on metamorphism iii the 



Alps, 342, 347. 

 Fuvri! and Silbermann, thermo-chemi- 



cal researches, 436. 

 Faye, constitution of the sun, 37. 

 Feldspar-porphyries, 187, 243, 250, 282. 

 Feldspars, their formation, 6, 25, 27, 



100; decay of, 101; triclinic, 31, 67, 



279, 443; aqueous origin of, 298,299; 



constitution and formulas of, 443. 

 Feldspathides, 445. 

 Festiniog group, 353, 371, 379, 384. 

 Fire-clays, 13, 22, 228. 

 Fissures, veins in, 202, 203, 233. 

 Fitzroy, water of, 124, 142, 152. 

 Flora, fossil of the Alps, 333. 

 Fluid-cavities in crystals, 65, 205. 

 Flysch of the Alps, 337. 

 Foldings in strata, 17, 51, 55-57, 74. 

 Fontainebleau sandstone, 289. 

 Foraminifera, palseo/oic, 411. 

 Forchhammer on fucoids, 96 ; on alka- 

 line sulphurets, 99. 



Ford, geology of Troy, New York, 407. 

 Formulas in chemistry, 465. 

 Foucou on native hydrocarbon gases, 



182. 

 Fouque* on native hydrocarbon gases, 



182. 

 Fournet on kaolinization, 100; on 



granites, 190; on skeleton crystals, 



201 : on veins, 202. 

 Fucoids, geological relations of, 2, 22, 



96, 144, 226. 

 Fusion, when afiected by pressure, 65, 



66. 



: r rock, 80. 

 Gaspe", geology of, 406, 415, 418. 



. hydrocarbon, 8, 112, 131, 

 182. 



li, geology of the Alps, 347, 

 . Inw of volumes, 438. 

 Gelatine, fonnula and constitution of, 

 180. 



it ion of chemical species, 427, 

 465. 



<ee slates, pyroschists, 178. 



Genth, F. A., on gold deposit?, 237; on 



corundum, 326. 



the Geognosy, 240 ; comparative, 33, 34, 

 278. 



Geological relations of mineral water?, 

 154, 156. 



Geology, its scope and objects, 239. 



Georgia, Vermont, fossils of, 391, 394, 

 402. 



Gerhardt on types in chemistry, 462, 

 468 ; on basic salts, 467. 



Gibbs, Wolcott, on the water-type in 

 chemistry, 468. 



Giekie on the geology of Skye, 281; 

 on Cambrian and Silurian, 424. 



Glaciatiou of rocks, 10. 



Glass softened by heated water, 6. 



Glauconite, relation of to potash, 2, 

 13, 136; in organic forms, 303. 



Glucose and sea-salt, compound of, 441. 



Gheiss defined, 188 ; granitoid, 185, 

 188, 206, 243; Laurentian, 206, 243 ; 

 White Mountain, 188, 244, 282; of 

 the Appalachians, 244 - 250; of Nov:i 

 Scotia, 408 ; primitive of Scandi- 

 navia, 469. 



Goderich, salt-wells of, 204. 



Goethe, 287. 



Gold, in Madoc, Ontario, 217; its solu- 

 tion and deposition in nature, 232, 

 237; in sea-water, 237, 238; of North 

 Wales, 383; of Nova Scotia, 408. 



Gothland, geology of, 366. 



Granite, decay of, 10; not a primitive 

 rock, 43; substratum of, unknown, 

 33, 43; intervention of water in its 

 formation. 5, 65, 189-191; defined, 

 183; an intrusive rock, 33, 183; strat- 

 iform structure in, 186 ; graphic, 

 195; its origin. See Exotic rocks. 



Granites of New England, 186, 188; of 

 New Brunswick and Italy, 201; of 

 the Alps, 331. 



Granitic vein-stones, 183, 189-209; 

 their aqueous and concretionary ori- 

 gin, 33, 192, 199; banded structure 

 of, 198 ; mineralogy of, 200, 210; 

 Laurentian, 33, 208; of White 

 Mountain series, 194; of Sherbrooke, 

 Nova Scotia, and of Biddeford, Maine, 

 198. 



