C57 



INDEX. 



■% 



ABB 



ABBOT, Gen., on Mississippi, 412. 445, 

 452, 458 



Abich on Vesuvian eruptions, 629 

 Adams, Mr., on fossil elephant, 184 

 Adams and Murie, MM., on shells of Nile 

 delta, 438 



Adhemar on recession of glaciers before 1248 

 278 



attraction of ocean by ice, 272 



Adigc, delta of, 423 



Adria, formerly a seaport, 425 



Adriatic, depth of, and deposits in, 426 



- fossils of, 54, 57 



Africa, S., extreme heat of soil in, 277 



Agassiz on delta of the Amazons, 467 



Glen Roy roads, 377 



Lake Superior, 421 



motion of glaciers, 369, 370 



Air-breathers, scarcity of, in primary rocks, 



155 



Airy, Professor, cited, 291 

 Alaska, volcanos in, 587 



Aldborough, incursions of the sea at, 521 

 Alderney, Race of, 500 



Alessandro degli Alessandri, his theory, 



48 



Aletsch glacier damming up a lake, 378 

 Aleutian Isles, volcanos of, 585 

 Alluvial plain of Mississippi, 457 

 Alluvium, volcanic, 642 



Alps, height of fossil shells in, 144 



- how much raised during Tertiary epochj 



- two glacial periods of, 196 

 Amazons, delta of, 466 



- landslips on the, 469 

 America, North, floods of, 351 

 ^ - inroads of the sea in, 559 



•-- south, slow rise of land in, 131 

 Amplntherium in Oolite of Stonesfield, 159 

 ^aximander on origin of men from fish, 15 

 '7 s - changes of level in, 132 



- height of fossil shells in, 144 



- slow volcanic action of, 130 



"■"- volcanos of the, 579 



Amo, flood of the river, 35. 



- travertin formed by, 406 



5 



VOL. I. 



u u 



ATT 



Antarctic Continent, its present known con- 

 figuration, 259 



— regions, cold of, 242 



Aphelion, its effect on climate 275 



Apsides, revolution of, combined with pre- 

 cession, 274 



Aqueous and igneous causes contrasted, 328 



— causes of change considered, 327 



~ -- supposed former intensity o"f, 106 



— lavas, description of, 619 

 Arabian writers on geology, 27 

 Arago on formation of ground ice, 367 



level of Mediterranean, 496 

 Archiac cited, 426 



Archa3opteryx or fossil bird in Oolite 157 

 Arctic latitudes, Miocene fossil trees in »03 



— night, counteracting heat in perihelion, 



Arduino, memoirs of, 60, 71 

 Aristotle on deluge of Deucalion, 593 



spontaneous generation, 34 



— opinions of, 20 



Arkansas, floods of, 455 



Artesian borings in delta of Ganges, 478 



— well at Grenelle, 390 

 Venice, 426 



bored at New Orleans, 458 



— wells explained, 388, 391 

 near London, 389 



organic remains found in, 393 



Arve, section of sand-bank in channel of 

 490 



Asia Minor, deposits of coast of, 430 

 Astronomical causes counteracting each 

 other's influence, 283 



Astronomy, earlier difficulties compared to 

 Geology, 102 



Astruc on delta of Rhone, 428 

 Atchafalaya River, the raft of, 445 

 Atlantic and Pacific oceans, mean level of, 



496 



— formation of chalk in, 307 



— mean depth of, 265 

 Atlantis, submersion of, 13 



Atolls and volcanos, map of active, 586 

 Atno del Cavallo, chasm cut near, 356 

 Attraction of ice, possible effects of, 290 



