506 



INDEX. 



Scaratfreides, 269. 



Scheuchzer's Homo D'duvii Testis 



proved to be a salamander, 26. 

 Schizopteris, 187. 

 Scilla ascribes fossils to the agency 



of the deluge, 32. 

 Scolopax, 312. 

 Scolopendridse, 266. 

 Scorpion, fossil, 265. 

 Scorpionidse, 265. 

 Scotland, footsteps of tortoises 



traced in, 290. 

 Sculda, 264. 



Sculpture, geology applied to, 12. 

 Sea, erosive action of the, on the 



coasts of Great Britain, 345 ; 



conservative principles in action, 



350. 



Seals, fossils, 337. 

 Secondary epoch, the age of reptiles, 



276. 



forms of crystals, 90. 

 Sedgwick, Professor, division of the 



Cambrian group, by, 458. 

 Selaginites, 188. 

 Semionotus, 421. 

 Septaria, from the London clay 



(illustration), 360. 

 Serapis, temple of, (so-called) eleva- 

 tion of the land proved from the 



state of its remains, 363. 

 Serpents, fossil, 302. 

 Serpulse, 399. 

 Shells, characteristic of the tertiary 



period, 384 ; of the cetaceous 



system, 384, 385 ; separate parts 



of (illustration), 239. 

 Sigillaria organum (figure), 196. 

 Sigillarise, 196, 198, 439,440. 

 Simosaurus, 300. 

 Siphonia, 215. 

 Silurian group, the, 42 ; geographical 



distribution, 455 ; upper Silurian 



rocks, 456 ; lower Silurian rocks, 



457 ; Cambrian group, 458 ; 



Cumbrian group, 459 ; fossils, 459. 

 Sivatherium, the, 320. 

 Smith, William, his labours, 39 ; 



his tabular view of the strata, 40 ; 



his geological map of England, 40. 



Soldani, his views in advance of his 

 age, 33. ' 



Solipedse, 323. 



South America, elevation of parts of, 

 by earthquakes, 365 ; extinct 

 mammalia of, 334 ; fossil remains 

 of the horse found there, 324. 



Spatangoidse, 226. 



Spatangus, 384. 



Sphsenodon, 336. 



Sphseronidse, 264. 



Sphenophyllum, 187. 



Sphenopteris crenata (figure), 182. 



Spirifera, 420, 435, 447. 



Spirulidae, 254. 



Spondylosaurus, 300. 



Spongiaria, 213. 



silicified (figure), 214. 



Squalidse, 277. 



Squaloraya, 276. 



Squalus, 277. 



Squilla, 264. 



Squillidaj, 264. 



Squirrel, skull of the (illustration), 

 336. 



Staffordshire coal-fields, 436. 



Stags, fossil, 320. 



Stalagmites and stalactites, 449. 



Staphylinidse, 269. 



Steneofiber, 337. 



Steneosaurus, 295. 



Sternberg, Count, on fossil plants, 1 75. 



Sternbergia, 195. 



Stigmaria, 190, 201, 440. 



Stomapoda, 264. 



Strabo, correct geological views of, 1 9. 



Strata, primary, 116 ; secondary, 

 115 ; tertiary, 115. 



Stratification (illustrations), 138 

 141, 147, 149 ; deceptive ap- 

 pearance of, 149, 150. 



Stratified fossiliferous rocks in Eng- 

 land, 117, 119. 



Streptospondylus, 295. 



Submerged forests, 397. 



Succession of organic forms, 58 ; of 

 strata, never inverted, 59. 



Succhosaurus, 295. 



Sus, 326. 



Sussexmarble,402;(illustration),403. 



