6 3 6 



Index. 



Sedgwick, Prof., and Murchison, 

 Cambrian and Silurian rocks, 57 



Arenig beds, 69 



on Devonian rocks, 99 



on Magnesian limestone, 140 



on William Smith, 281 



Sediments, transported by gla- 

 ciers, 5 

 running water, 6 



how distributed, 10 

 Seine, 533, 535 



Selsey Bill, waste of, 486 

 Serpentines, 615 

 Seven Springs, Thames, 515, 556 

 Severn, 503-510, 542, 554 

 Shap granite, boulders, 385 

 Shells, &c., how fossilized, 13, 16 



in glacial beds, 395, 412-418 

 Sheppey Isle, denudation of, 485 

 Shingle, how formed, 9 

 Shrewsbury, Permian strata, 142 

 Shrinkage of earth's crust, 45, 46, 



49 



Sidlaw Hills, 528 

 Silures, 580-582 

 Silurian rocks, England and 



Wales, 302-305 

 Siston river, 511 

 Skene, Mr., on Celtic populations 



and names, 580, 581, 583, 584, 586 



King Arthur, 587 



Skertchly, Mr., on boulder-clay, 



394-396 



antiquity of man, 481, 482 



flint implements, 544 



Skiddaw slates, 70 



Skye, Miocene volcanic rocks and 



flora of, 264 



Slate quarries, Wales, 590-592 

 Smith, William, on Sands of 



Inferior Oolite, 174 



Fuller's earth, 176 



Kelloway rock, 184 



Succession of life in time, 281 



Smythe, Admiral, and volcano of 



Graham Island, 79 

 Snowdon, &c., volcanic rocks of, 76 

 Snowdon to East of England, 



structure and physiography, 330, 



331 



STI 



Snowdon, glaciers of, 407, 408 



421-428 

 Soils, 563-578 

 boulder-clay and silt, 576-578 



Charnwood Forest, 568 



Cretaceous series, 572-576 



Eocene beds, 576 



Lias and Oolites, 570-572 



Lickey Hills, 568 



loams, 573 



New Bed Series, 569, 570 



North of England, 564-566 



North of Scotland, 563 



Secondary rocks, 569-576 



Wales, 566-568 



Wealden, 573 



Solar evaporation, concentration 



of salts by, 146 

 Solent, 516 



Eocene strata of, 347 

 Somme, river, gravels of, 538 

 Sorby, Mr., on minerals and rocks, 



53, 54 



Sound of Jura, glacier, 398 

 South Staffordshire, Old Red 



Sandstone of, 117 



coal-measures of, 124 



Permian strata, 142, 143 



South Wales, Lower Silurian rocks 



of, 72 



glaciation of, 402 



Old Bed Sandstone of, 117 



Southern hemisphere, glacial 



epoch there, 378 



Highlands glaciated, 382 

 Species, change of, and geological 



time, 36 



Speeton clay, 213 

 Spitzbergen, Miocene flora of, 264 



volcanic rocks of, 354 



Stanley, Bishop, on CefnCave, 496 

 St. Bride's Bay, denudation of , 487 



Cassian and Hallstatt beds, 159 



David's, volcanic rocks of, 77 



Lawrence, area of drainage, 560 



Paul's and Portland stone, 190, 

 611 



Steno, on fossils, 278 



Stiper Stones, 72 



volcanic rocks near, 77 



