616 



GENEEAL INDEX. 



ANI 



Animals, tamed, often will not breed, ii. 

 313 



— their geographical distributionjii. 329 

 Anio, flood of the river, i. 355 



travertin formed by, i. 406 



Antarctic Continent, its present known 



configuration, i. 259 



— regions, cold of, i. 242 

 Aphelion, its effect on climate, i. 275 

 Aphides, mnltiplieation of, ii. 439 



— shower of, ii. 379 



Apsides, revolution of, combined with 

 precession, i. 274 



Aqueous and igneous causes contrasted, 

 i. 328; ii. 97, 237, 243 



— causes of change considered, i. 327 



— — supposed former intensity of, i. 

 106 



— lavas, description of, i. 619 

 Arabian writers on geology, i. 27 

 Aradas, Dr., on fossil shells of Etna, ii. 6 

 Arago on formation of ground ice, i. 367 



level of Mediterranean, i. 496 



Archseopteryx or fossil bird in Oolite, 



i. 157 

 Archiac cited, i. 426 



Arctic latitudes, Miocene fossil trees in, 

 i. 203 



night, counteracting heat in perihe- 

 lion, i. 281 



Arduino, memoirs of, i. 60, 71 



Argyll, Duke of, his criticisms on theory 



of natural selection, ii. 489 

 Aristotle on deluge of Deucalion, i. 593 

 spontaneous generation, i. 34 



— opinions of, i. 20 

 Arkansas, floods of, i. 455 



Artesian borings in delta of Gan^^es, i. 

 478 ^ 



well at Grenelle, i. 390 



Venice, i. 426 



— bored at New Orleans, i. 458 

 wells explained, i. 388, 391 



— near London, i. 389 



organic remains found in, i. 393 



increase of internal heat shown 



by, ii. 205 



Arve, section of sand-bank in channel 

 of, i. 490 



Ascension Island, fossil turtle ews from, 

 ii. 573 ^^ 



Asia Minor, deposits of coast of, 430 



AstrcBa dipsacea, ii. 582 



Astronomical causes counteracting each 

 other's influence, i. 283 



Astronomy, earlier difficulties of, com- 

 pared to Geology, i. 102 



Astruc on delta of Ehoue, i. 428 



Atchafalaya River, the raft of, i. 445 



Atlantic and Pacific oceans, mean level 

 of, i. 496 



BAO 



Atlantic, formation of chalk in, i. 307 

 — mean depth of, i. 265 



absence of coral reefs in, ii. 608 



- islands, age and origin of, ii. 403 



- — landshells of, compared with 

 British, ii. 426 



— map showing depth of ocean sur- 

 rounding them, ii. 407 



409 



probably formed in mid-ocean, ii. 



submarine volcanos of, ii. 63 

 Atlantis, submersion of, i. 13 



Atolls and active volcanos, map of, i. 

 586 



— circular coral islands, described ii 

 589, 594, 601 ' ' 



Atrio del Cavallo on Vesuvius, chasm 

 cut near, i. 356 



Attraction of ice, possible effects of i 

 290 



Austen,^ See Godwin-Austen. 

 Australia, animals of, i. 159, 163 



— coral reefs of, ii. 592 

 Australian Marsupials, ii. 332 



— and Indian regions, theory to account 

 for zoological boundary line between 

 the, ii. 352 



— region of mammalia, ii. 347 

 Auvergne, calcareous springs of, i. 399 



— carbonated springs of, i. 411 



— Desmarest on volcanos of, i. 72 



— red sandstone of, distinct in ao-e from 

 English, i. 114 



Ava, fossils of, i. 43 



Avantipiira, buried temple of in Cash- 

 mere, ii. 354 



Avernus, Lake, i. 602 



Avicenna on cause of mountains, i. 27 



Axis of ^the earth's orbit, variation in 

 the minor, i. 269 



— changes in obliquity of earth's, i. 282 



— double, of Etna, ii. 9 



— of earth's crust, supposed change in, 

 ii. 208, 241 



Axmouth, landslip, drawing of, i. 537 



Azores, icebergs drifted to, i. 246 



siliceous springs of, i. 408 



volcanic region of the, i. 591 



birds carried from Europe to, ii. 365 



— of, common to the continent, ii. 



413 



BABBAGE, Mr., on Temple of Serapis, 

 ii. 165, 167, 172 



expansion of rocks by heat, ii. 

 235 

 Bache, Professor, on width of Gulf- 

 stream, i. 244 



Bachmann Dr., cited, i. 209, 210 



Bacon, Lord; cited, ii. 557 



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