INDEX. l^ 



Simia, fossil, in miocene formation, i. 

 60K 



Simorre, fossil Ape found near, i. 601. 



Simple minerals, definition of, 571. 



Siphuncle, structure and functions of in 

 nautilus, i. 321 ; arguments from 

 fossil portions of, i. 326 — 328 ; con- 

 jectures respecting its varied use and 

 action in different shells, i.608, 609. 



Sivatherium, new fossil animal in Sub- 

 Himalayan Hills, i. 600 ; interme- 

 diate character of, i. 600. 



Skiddaway island, bones of megathe- 

 rium found in, i. 143. 



Sloth, peculiarities in the structure of 

 living species, no imperfections, i. 

 141 : adapted to live on trees, i. 142. 



Smyth, Capt., experiments on Masseys 

 log and bottles sunk in a deep sea, i. 

 345. 



Soemmering, Professor, pterodactyle de- 

 scribed by, i. 223. 



Soldani, his collection of fossil shells 

 in Tuscany, i. 1 17. 



Solenhofen, pterodactyle found at,i. 221, 

 223 : libellulae and other insects 

 found at, i. 221 ; fossil fishes of, i. 266^ 

 fossil crustaceans from, i. 387. 



Species, changes of, indicate changes 

 of climate, i. 116. 



Speeton, hamites found at, i. 368. 



Spiders, fossil in Jurassic and tertiary 

 strata, i. 406. 



Spinax acanthius, horny dorsal spine 

 of, i. 290. 



Spirula, derived from a sepia, i. 362, 

 316 ; ii. 63. 



Springs, how supplied by stratified 

 rocks, i. 70 ; origin and importance 

 of, i. 556, 561 ; ordinary supply of 

 rivers by, i. 558 ; causes of their 

 production, i. 558 ; supply from rain 

 water, i. 559, 570 ; systems of, near 

 Bath, i. 560 ; produced in Derby- 

 shire, by faults, i. 560 ; two systems 

 of, originated in faults, i. 560 ; local 

 causes of irregularities in, 569. 



Squaloids, extent of, 287. 



Stark, Dr., on changes of colour in 

 fishes, i. 209. 



Star fish, number of ossicula in, i. 441 . 



Steam power, prodigious effect of, i. 

 533 ; amount of, employed in Corn- 

 wall and in England, i. 534, 535. 



Stelleridans, geological commencement 

 of, i. 416 ; structure of fossil, similar 

 to that of existing species, i. 416. 



Steneosaurus genus established by St. 

 Hilaire, i. 252. 



Sternberg, Count, his Flore du Monde 



primitif, i. 456 ; on cycadeae and 

 zamites in the coal formation, i. 

 492 ; his discovery of fossil scorpions, 

 i. 406. 



Stigmaria. form and character of, }. 

 476, 477 ; dome-shaped trunk, i. 

 476 ; internal structure of, i. 477 j 

 probable aquatic habit, i, 478. 



St. Hilaire, Geoffroy de, his new genera 

 of fossil crocodilians, i. 252. 



St. Ouen, Artesian well at, i. 562. 



Stones, none have existed in their pre- 

 sent state for ever, i. 572. 



Stonesfield, mixture of marine and ter- 

 restrial animals in oolite at, i. 121 ; 

 pterodactyle found at, i. 221 ; raega- 

 losaurus found at, i. 234 ; scales of 

 testudinata found at, i. 258 ; cast- 

 ings of marine worms at, i. 260 ; re- 

 mains of raarsupialia found at, i. 265 ; 

 rhyncholites found at, i. 319. 



Stratified rocks, aggregate thickness of, 

 i. 38. 



Straus, on eyes of insects, &c. i. 397. 



Sturgeons, functions of living species, 

 i. 279. 



Sublimation, theory of veins filled by, i. 

 551. 



Succession, eternal, of species disproved 

 by phenomena of primary rocks, i. 54. 



Sumner, Bishop, his records of Creator, 

 i. 33. 



Superposition, regular order of in stra- 

 ta, 1. 6. 



Surturbrand, brown coal of Iceland, i. 

 509, 510. 



Syringodendron, name applied to many 

 species of sigillaria, i. 472, 



Tankerville, Lady, zamia in conser- 

 vatory of, i. 494. 



Taylor, Mr. U. C, on fossil fuci in 

 Pennsylvania, i. 452. 



Taylor, Mr. I. C, on duty of steam 

 engines, i. 532, et seq. ; on beneficial 

 disposition of metals, i. 554. 



Teleosaurus, genus established by St. 

 Hilaire, i. 252 ; skeleton of, from 

 Whitby, i. 253. 



Temperature, changes indicated by fos- 

 sil vegetables, 453 ; proofs of gra- 

 dual diminution of, i. 507. 



Tertiary strata, character of, i. 76; 

 character of their fossil veg-etabies, i. 

 453. 



Testudo graeca, recent footsteps of, i. 

 261. 



Tetragonolepis, fossil species of, i. 124. 



Theories, Huttonian and Wernerian, i. 

 44, 551. 



