638 



INDEX. 



PAGE 



Sediments, transportation and distribution, 18, 42 



thick, material for mountain-ranges 257 



thick, why lines of yielding 260 



Seebach 132 



Seismographs 128 



Sekeya. 117, 130 



Selvage 235 



Sepia, living 432 



Sequoia ambigua 476 



Langsdorfii 508 



Senarmont 224 



Serapis, temple of 135 



Serpentine 220 



Sertularia pinnata 307 



Shale, black, of coal-measures 347 



Sharpe 183 



Shasta, volcano 88 



Shell-deposits 160 



Shell-mounds 613 



Shells, bivalve and univalve, Carboniferous. 



394, 395 



distorted 183, 184 



as a rock-forming agent 161 



Permian 411 



Shore-ice 72 



Sierra Nevada 259, 265, 569 



Sigillaria elegans, leaf 368 



Grseseri 368 



laevigata 368 



obovata 368 



restoration 370 



reticulata 368 



section of stem 370 



Sigillarids 329, 368 



Silica deposited from geysers 105 



deposited from springs 79 



Silurian age, general life-system 302 



age, physical geography 297 



animals 304 



plants 304 



scorpions 326 



system, area in America 296 



— system, rocks 296 



system, subdivisions 296 



Siphonia ficus 477 



Sivatherium giganteum 525 



Shvalik Hills. India, Miocene of 524 



Slate-rocks, decay 7 



Slaty cleavage 181 



Slip, law in faults 231 



Smilodon 585 



Soils, depth 5 



how formed 4 



Solenomya anodontoides 395 



Sorby 185, 225, 244 



Sorting power of water 20 



Southern coast of United States, wave-ac- 

 tion 35 



Sphenophyllnm erosum 371 



Sphenothallus angustifolius 303 



Spirif er 416 



Cumberlandiae 315 



— — f ornacula 332 



hysterica 314 



PAGE 



Spirif er, perextensus. 332 



plenus 394 



striatus 314 



Spirorbis 394 



Arkonensis 333 



omphalodes 333 



Sponges, Cretaceous 477 



Springs 74 



carbonated 77 



chemical deposits in 77 



fissure 75 



Spy, cave near 610 



Squalodonts 436 



Squatina acanthoderma 436 



Stagonolepis 520 



Stalactites 77 



Stalagmites 77 



St. Anthony, falls of 14 



Stegocephali 413 



Stegosaurus ungulatus 465 



stenops 466 



Sterna cantiaca 492 



Stigmaria ficoides 369 



Stone age 607 



Stones, balanced 57 



Strata, elevated, inclined, and folded: 174 



outcrop, definition 176 



Stratification 22, 170 



Strike, definition 176 



Stromatopora concentrica 305 



rugosa 304 



Strombodes pentagonus 306 



Strophomena 416 



rhomboidalis 332 



Structural geology 163 



Subangular stones 546 



Sub-Carboniferous period 345 



Submarine banks 43 



Subsidence during the Quaternary, evidence 555 



of Northern Europe 572 



of Pacific floor 137 



of Southern Atlantic States 137 



area of land lost 153 



amount of vertical 153 



rate 154 



Sulphur deposited from springs 79 



Superior, Lake, erosion of shores 36 



Surface-rock underlying drift 549 



Syenite 203 



Syncline 178 



Syringopora verticillata 306 



T 



Table mountains of Cumberland plateau. ... 267 



Table-rocks 13 



Tallulah River Gorge 18 



Tachylite 207 



Tseniopteris elegans 459 



Tail-fin, heterocercal 341 



homocercal 341 



Talcose schist 220 



Talus 8 



Tapirus Indicus 523 



