904 



INDEX. 





Saskatchewan, Cretaceous, 456. 



glaciers, 536. 

 Sassafras, 458. 



Cretaceum, 459.* 



Mudgii, 460. 



mirabile, 460. 



obtusum, 460. 



recurbatum, 460. 

 Sauranodonts, 854. 

 Saurians, 338,§ 592. 



See Reptiles. 

 Saurian coprolite, 446.* 

 Saurichnites lacertoides, 373. 



salamandroides, 373. 

 Saurichtys, 428. 



apicalis, 429. 

 Saurepteris Taylori, 281.* 

 Saurocephalus, 467, 477. 



first of, 477. 



lanciformis, 477. 

 Sauropus primgevus, 302,* 304. 

 Saw-fishes, 509. 

 Saxicava, 608. 



Arctica, 553, 559. 



sands, 550, 555. 

 Saxifraga oppositifolia, 532. 

 Saxony, Carboniferous in, 346. 



infusorial bed in, 514. 



Permian in, 369. 

 Scalaria, 508. 



Bowerbankii, 518. 



Groenlandica, 519, 553. 

 Scaglia, 470. 

 Scalent series, 375. 

 Scales, 613. 

 Scallops, 561. 

 Scalites angulatus, 191.* 

 Scandinavia. See Norway, 



Sweden. 

 Scapharca hians, 500.* 

 Scaphiocrinus, 303, 341. 

 Scaphirhyncus, 264. 

 Scaphites, 457, 462. § 



aequalis, 4<6, 477. 



Conradi, 456, 462, 463,* 467, 

 469. 



Geinitzii, 476. 



larvaeformis, 463,* 467, 477. 



Warreni, 477. 

 Scapolite, 57, §* 757, 762. 

 Scars of Lepidodendrids, 324.* 



of Tree-ferns, 325* 

 Scelidotherium, 570. 

 Schilleryte, 73. § 

 Schimper,\V. P., on coal-plants, 



328, 330. 

 Schist, varieties of, 72,§ 73,§74.§ 

 Schistose rocks, 63. § 

 Schizodus, 303. 



amplus, 342. 



dubius, 372. 



last of, 373. 



obscurus, 372. 



Schlotheimii, 372. 



truncatus, 372. 

 Schizopods, 350, 388.* 

 Schizopteri*, 34S. 

 Schmidt, A., dolomization, 769. 



Missouri lead mines, 776. 

 Schoharie grit, 254. 

 Schultz-Fleet, analysis of ash, 



365. 

 Schutzia, 348. 



Schweitzer, on ash of plants, 61. 

 Sciuravus parvidens, 510. 

 Scolifchus, 174, § 176. 



linearis, 177* 178, 220. 

 Sconsia Hodgii, 511. 

 Scoresby, height of waves, 670. 



Scoria, 727 § 

 Scoriaceous rocks, 64.§ 

 Scorpion, 121,§ 335, 349, 351. 

 Scotland, Archaean in, 151. 



Carboniferous in, 345, 346. 



Devonian in, 282. 



disturbances in, 525. 



glaciers in, 536. 



in the Quaternary, 541, 555, 

 572. 



Permian in, 369. 



Quaternary in, 533, 536. 



Silurian in, 244. 



SHbcarboniferous in, 306. 

 Scratches, 90. § 



Drift, 530, 535. 



glacial, 699. 

 Scratching, by slides of rock, 

 90, 666 



by drifting sand, 632. 



by icebergs, 699. 

 Scrope, 744, 748, 762. 

 Scudder, S. H., on Devonian 



insects. 274. 

 Scutella, 509, 510. 

 Scyllarus, 475. 

 Scymnus, 510. 

 Scyphia, 474. 



reticulata, 436,* 449. 

 Sea-anemone, 117,* 127. § 

 Sea-beaches of Cuamplain 



epoch, 549. 

 Sea-bora er formation, 549, 680, 



684. 

 Sea-cucumbers. 127 § 

 Pea-lilies. 297. 

 Sea-saurians, 341. § 

 Sea-slugs, 127. § 

 Sea-urchins, 127 § 

 Sea-water, specific gravity, 668. 

 Sea-weeds. See Alg.®. 

 Seal, 121, 506, 592. 

 Seam, 81. § 

 Secondary, 489. § 

 Secretary-bird, 516. 

 Section, general, of geological 

 series, 142* 



at Genesee Falls, 79,* 219* 



at Niagara River, 219.* 



of Appalachians, 399 * 786* 



of Archaean, 153. 



of Chemung beds, 277.* 



of Cincinnati group, at Bar- 

 rington, 196. 



of Coal-measures at Trevor- 

 ton Gap, Pa., 396* 



of Coal-measures near Nes- 

 quehoning, Pa., 395.* 



of Coal-measures, with trees, 

 312* 



of Colorado Plateau, 792.* 



of coral island, 619.* 



of Green Mts., 213* 



of Hawaii, 724.* 



of Illinois rocks, 378. 



of Iowa rocks, 377. 



of Kilauea, 726.* 



of Michigan rocks, 376. 



of Missouri rocks, 378. 



in Massachusetts, 213.* 



of Mt. Loa, 745* 



of New York, 166.* 



of New York, south from 

 Lake Ontario, 233* 



of Ohio rocks, 376. 



of Paleozoic at Bore Springs, 

 Va., 396* 



of Paleozoic rocks in the 

 Mississippi basin, 374.* 



Section of Paleozoic at Potts- 

 ville, Pa.. 396.* 



of Pennsylvania rocks, 375 



of Tennessee rocks, 379, 790.* 



of Utah ore beds 1 , 779.* 



of volcanic cones, 726.* 

 Sections of Coal-measures, 311, 

 320, 396.* 



of unconformable Carbonif- 

 erous, 308.* 



of Hamilton beds, 267,* 277.* 



of terraced valleys, 558,* 

 559.* 

 Secular changes of climate, 715. 

 Sediment of rivers, 656, 677.§ 

 Sedimentary rocks, 62,§ 64. 

 Sedgwick, Devonian, 282. 



Cleavage, 83. 



May Hill sandstone, 244. 



Permian unconformability, 

 402. 

 Sedum Rhodiola, 532. 

 Seeds, transportation of, 607. 

 Selachians, 261, § 301,336, 343, 

 349,351,427,441,450,484 



range of, in time, 388,* 589 * 

 Selvage, 114. § 



Semi-bituminous coal, 315,§ 

 346. 



analyses of, 316. 

 Semi-oviparans, 416. 

 Semnopithecus, 520. § 

 Senonian group, 470. 

 Sepir, 441. 

 Septaria, 84.§ 

 Septerpeton Dobbsii, 351. 

 Sequanian group, 435. 

 Sequoia, 459, 497, 526, 582. 



formosa, 459. 



gigantea, 526. 



Langsdorfii, 498, 514. 



Reichenbachi, 459. 

 Serai series, 375. 

 Serapis, change of level in the 



temple of Jupiter, 584.* 

 Sericite slate, 72. § 

 Serolis, 120* 



Serpentine, 55, § 75,§ 233, 761. 

 Serpent-stars, 128 § 

 Serpula, 122, § 123.*§ 

 Serpulites, 168. 



dissolutus, 204. 



Murchisoni, 178. 

 Serripes Groenlandicus, 553- 

 Sertularia, 130. § 



abietina, 130* 



ro-acea, 130* 

 Severn Straits, 555. 

 Shale, 68.§ 



Shaler, N. S., disintegration 

 by changing temperature, 

 720. 



mountain making, 838. 

 Shaly structure, 82 § 

 Shark bones, analysis of, 60. 

 Sharks, 26 1, § 462, 473, 484, 502, 

 516. 



range of, in time, 589 * 

 Sharks' teeth, abundance of, in 



Tertiary, 502. 

 Sharpies, S. P , analyses by, 60. 

 Shasta group, 457- 

 Shasta, Mount, 24, 735.* 

 Shawangunk grit, 222. 

 Sheep, 568. 



Sheep-backs, 531, § 699.* 

 Shell-beds, 492, 608. 

 Shell-heaps, 561, 562, 577, 608. 

 Shell-limestone, 69 ,§ 424, 492. 



