INDEX. 



799 



Bands of Hastings, 349. 



of Diest, 234. 



Sandstone, Gray, of Upper Ludlow, 552. 



and conglomerate of Auvergne, 223. 



Xew Red, of Connecticut, 452. 



slab, with cracks, 350. 



Sandwich Islands, craters and calderas of, 623. 



volcanoes of, 623. 



Sao Mrsuta, 5S0. 



Sattel, intercalations of gneiss in the, 76L 

 Saueats, near Bordeaux. faluns of, 232. 

 Saurians of Lias. 422-423. 



sudden destruction of, 426. 



Saurichtfiys apicalis, 442. 

 Saussure, on erratics. 142. 



on vertical conglomerates, 47. 



Saxicava rugosa, Clyde drift, 153. 

 Saxony, protrusion of solid granite in, 727. 



beds of minerals. 772. 



Scandinavia, glaciation of, 149. 

 Scaphites atqualis, Dorsetshire, 326. 

 Scarborough, oolitic plants of, 411. 

 Schist, micaceous, 734, 736. 



argillaceous, 734, 735. 



Sjhizodus Sddotheimi, Permian, 459. 



truncatus, Permian, 459. 



Scamerling, Dr., on Liege caverns, 124, 125. 



Schorl rock, 70S. 



Schwab. M., on Celtic coins, 111. 



Scoliostoma, St. Cassian, 436. 



Scoresby, on Arctic icebergs, 146. 



Scoriaceons lava in part anivgdaloid, 600. 



Scoria?, 602, 606. 



formation of, 594. 



Scotland, fundamental gneiss of, 5S5. 



Old 'Red Sandstone of, 524. 



glaciation of, 151. 



Scrope, Mr., on zoned structure of Ponza 



Islands, 752. 



on globular structure of traps, 619. 



on globiform pitchstone, 619. 



on tuff and peperiuo, 602. 



Sea-beds, scored by icebergs, 14S. 



cliffs, inland, 71. 



Section through part of Teneriffe, 645. 



at Champradelle, near Clermont, 225. 



between Atlantic and Mississippi, 497. 



between rivers Alabama and Tombeckbee, 



310. 



in Isle of Portland, 391. 



of Arran. 730. 



of central region of Madeira, 651. 



of contorted strata, Forfarshire, 156. 



of Dundry Hill, near Bristol, 48, 98, 



of escarpments of Weald Valley, 353. 



of Forfarshire, 4S. 



of Isle of Arran, 730. 



of lava at Castell Follit, 671. 



of Madeira, 643. 



of Palma, 631 



of South Joggins cliffs. 4S5. 



of Chalk ancfGreensand, 317. 



of Elephant-bed, Brighton, 373. 



of Lulworth Cove dirt-bed, 391. 



of Old and Hew Red Sandstone, 431. 



of the Weald, 346, 353. 363. 



showing chalk in Seine A'allev, 354. 



showing erect fossil trees in Coal, 483. 



vertical of slate-rock, Devon, 750. 



Sedgwick, Prof., on concretionary magnesian 



limestone, 37. 



on brecciated limestone, 459. 



on Cambrian, 575. 



on carboniferous plutonic rocks, 725. 



on Coal strata, 466. 



on Cornish granite, 712. 



on Devonian series, 536. 



on garnets in altered rock, 613. 



on granite of Caithness. 729. 



on Silurian strata, 560, 567. 



on structure of mineral masses. 746. 



Segregation of mineral veins. 768. 

 Semi-crystalline strata of Alps, 760. 

 Semi-opal, Diatomacva; in. -.'6. 

 Senneville, chalk pinnacle at, 355. 



Senonian, term explained, 315. 

 Sequoia Langsdorjii, Switzerland, 263. 



Mackenzie River, 263. 



Serapte convolution, 237. 



Serapis imbedded, 108. 



Serpentine, 606, 736. 



Serpula? on volcanic rocks in Sicily, 192. 



attached to Encrinite, 403. 



attached to Gryphcza, 22. 



■ attached to Spatangus, 23. 



Shale, Lower Ludlow, 555. 



defined, II. 



Sharks, teeth of, 290. 



Sharp Tor. Cornwall, granite of, 703. 



Sharpe, Mr. D., on shells in slaty cleavage, 



750. 



on Silurian fossils, 571. 



on Upper Canada, 331. 



Shell-mounds of Denmark, 109. 



Shells, proportion of Northern and Southern, 



in crag, 206. 



Arctic, in Scotch drift, 154. 



fossil, of "Virginia, U. S., 273. 



fossil, of London clav, 293. 



fossil, of mountain limestone, 516-522. 



of Barton clav, 287. 



of Edeghem, 234. 



of faluiis compared to those of crag, 214 



of Faxoe, 316. 



of Gergovia formation, 693. 



of Great Oolite, 405. 



of Mayence basin, 243. 



of Norwich crag, 197. 



of Sicily, 190, 194. 



of Subapennine beds, 208. 



of Upper and Middle Purbeck, 379, 380. 



preserving their color, 518. 



proportion found in different strata, 189. 



recent, 28, 29, 30. 



valuable in classification, 187. 



Sheppey, fauna and flora of, 292. 

 Shetland, granite of, 700. 



hornblende schist of, 743. 



Sicily, volcanic dikes of, 192. 



corals of, 194. 



dikes in, 665. 



inland cliffs in, 74. 



newer Pliocene beds of, 192. 



terraces of denudation in, 75. 



Sidlaw Hills, trap of, 699. 

 Siebengebirge, igneous rocks of, 679. 

 Sigillaria, structure and size of, 474, 481. 



Icevigata, Coal, 474 



Siliceous limestone defined, 12. 



rocks defined, 11. 



Silurian plutonic rocks, 725. 



derivation of name, 551. 



— — fossils, 552 T 570. 



lower metamorphic, in Scotch Highlands, 



762. 



rocks, table of, 550, 551. 



rocks, Upper, 551; Middle, 560; Lower, 



562. 



rocks, whether of deep-water origin, 573. 



strata of Europe, 569. 



strata of United States, table of, 570. 



volcanic rocks, 699. 



Siphonia piriformis, Blackdown beds, 329. 

 Siphonotreta unguiculata, Silurian, 569. 

 Siwalik Hills, freshwater deposits of, 276. 

 Skaptar Jokul, flow of Lava from, 657. 

 Skye, plutonic rocks of Lias in, 724 



decomposed trap of, 610. 



sandstone in, 36. 



Skull of stone age, Denmark, 113. 



of iron age, Denmark. 113. 



Skulls, brachycephalous. 113. 



dolichocephalous, 113. 



Slaty cleavage, 749. 

 Slicken-sides, term defined, 770. 

 Smilex obtusifolia, CEuingen, 255. 



sagittifera, OZningen, 255. 



Smith, Mr., of Jordanhill, on Madeira fossil 



plants, 649. 

 Snags, fossil, 4S3. 



