644 



GENERAL INDEX. 



SIL 



Silting up of estu.arios, i. 557 

 Silurian period, climate of, i. 231 

 Silver Pits, excavation of, i. 569 

 Simeto, River, excavation of lava by, i, 



357 



Sindree, Eort of, submerged by earth- 

 quake in Cutch, ii. 102 

 Sink-holes, described, ii. 109 

 Siwalik Hills, fossils of the, i. 201 

 Six-fingerod variety of man, ii. 476 

 Skaptar Jokul, eruption of, ii. 49 

 Skeletons, human, in rock of Guada- 



loupe, ii. 544 

 Sleswick, waste of coast in, i. 557 

 Sligo, bursting of a peat-moss in, ii. 504 

 Sloane, Sir H., on dispersion of plants ^ 



ii. 390 

 Smith, William, his tabular view of 



British strata, i. 84 

 Smith, Mr., of Jordanhill, on rate of 



subsidence of Temple of Serapis, ii. 

 175 



Smyrna, volcanic country round, i. 592 

 Smyth, Admiral, on depth and cur- 

 rents of Mediterranean, i. 561-564 



i. 65 



temperature of Mediterranean, 



depth of Mediterranean, 1. 429 

 shells at great depth at Gi- 

 braltar, ii. 575 



floating islands, ii. 363 

 height of Etna, ii. 1 

 insects blown by wind, ii. 380 

 level of Mediterranean, ii. 168 

 number of wrecked vessels, ii. 



546 



Snags of the Mississippi River, i. 446 

 Snakes of Japan of Indian origin, ii. 

 343 



Snow, evaporation of, in dry air, i. 286 



— impeding radiation of heat, i. 284 



— line at equator, i. 248 



• — limit of perpetual, i. 367 

 Sodertelje, in Sweden, buried fishing hut 



near, ii. 187 

 Solar tide, comparatively small, i. 110 

 Solar magnetic periods, i. 303 



System, supposed secular loss of heat 

 in, ii. 213 



Soldani on microscopic shells of the Me- 

 diterranean, i. 65 



— Paris basin, i. 65 



Solent, channel when excavated, ii, 56^ 



Solfatara, Lake of the, i. 404 



■ — extinct volcano of, i. 602 



Solway moss, description of the, ii. 503 



Somersetshire, submarine forest on coast 

 of, i. 545 



Somma, Monte, supposed recent fossil 

 shells of, i. 637 



slope of escarpment of, i. 631 



SPI 



Somma, formed like Vesuvius, i. 637 

 Sorbonne, College of the, i. 58 



South Carolina, earthquake in, ii. 106 



Georgia, climate of, i. 240 



Southern hemisphere, cold of, due to 



geographical conditions, i. 277 



Space, temperature of, i. 278 



Spada on origin of marine fossils, i. 51 



Species, theories on eras of creation of, 

 i. 22 



gradual change of, in successive stra- 

 ta, i. 311 



rate of change in, available in geolo- 

 logieal chronology, i. 800 



aquatic, buried in subaqueous strata, 

 ii. 565 



Brocchi on the dying out of, ii. 268 

 causes why one survives and another 

 dies out, ii. 433 



- how an equilibrium is preserved be- 

 tween, ii. 435, 442 



- definition of the term, ii. 245 

 have they a real existence, ii. 245 



- dying out and coming in of, ii. 267, 

 269, 272 



- extension of one alters range of 

 other, ii. 446-449 



- extirpation of, by man, ii. 451 



- evolution of, does not exclude crea- 

 tive power, ii. 492 



■ extinction of, ii. 433-463 



■ how affected by changes in physical 

 geography, ii. 443 



Lamarck's definition of term, ii. 246 

 — theory of transmutation of, ii. 246 



Linnseus' definition of, ii. 267 



loss of one easier to prove than 

 coming in of another, ii. 463 



new cannot be produced by man, ii, 

 285 



power of exterminating, no preroga- 

 tive of man, ii. 460 

 ■ their possible rapid increase, ii. 317 



reciprocal effect of aquatic and terres- 

 trial, ii. 442 



two rational, could not coexist on 

 the globe, ii. 481 



* Vestiges of Creation' on, ii. 274 



Mr. Wallace on nature of, ii. 276, 

 280 



whether indefinitely variable, ii. 300 

 Specific centres, doctrine of, ii. 336 

 Spencer, Herbert, on 'survival of the 

 fittest; ii. 318 



principle of inheritance, ii. 291 

 Spermophilus, skeletons of, in attitude 



of hibernation, ii. 563 

 Spix and Martins on extirpation of 



species by man, ii. 454 

 — on animals carried on floatinc: is- 



lands, ii. 362 





>" 





i,^ 



^ ■- - 



of. 





in caves, u* 



k*«*^ 



. TT 



\n 



in sank pw 





-^"^ of the 

 am, L 279 



« i-. ^^ ■* 



'pi. 



cond 



ii.443 



121^221 



U60 

 \rl tend 



fi 



t -"^S rii 



'"■■- T 



Ci. 



^4 



J. fa 



S.'?: 





vi 



-I 



^^- of *• 



