GENERAL INDEX. 



857 



intrusive in, 434; of the North- 

 west Highlands, metamorphism of, 

 433. 



Silurian system in Canada, Western 

 Europe, and the interior of America, 

 811. 



Skelgill, section across, 661. 



beds, comparison of, with Bii'k- 



Jaill Shales, 706. 



of Skelgill, 659; Lower, 



660 ; Middle, 665 ; Upper, 672. 



Skye, Dr. A. Geikie on the age of the 

 altered Limestone of Strath, 62. 



, tachylyte from Quiraing in, 304. 



Sluice-box, Mysorean, for gold-wash- 

 ing, 648. 



Soapstone, Mr. H. B. Brady on the 

 so-called, of Fiji, 1. 



Soudan, Mr, V. Ball on some eroded 

 Agate pebbles from the, 368. 



South Africa, physical structure of, 

 256. 



South- African rocks, classification of, 

 240. 



South Cave, sections of Lower Chalk 

 &c. near, 339 ; sections of Eed 

 Chalk near, 334, 335. 



South Stack, section showing running 

 of one bed at, 480. 



Series, 476, 484. 



South Thoresby, succession of Creta- 

 ceous beds at. 326. 



Speeton CliflF, section in, 354. 



Cliffs, succession of Cretaceous 



beds in, 345. 



, Eed Chalk at, 337 ; sec- 

 tion of Cretaceous deposits at, 366. 



Spencer, Mr. J., on evidence of ice- 

 action in Carboniferous times, Proc. 



93. 

 Spengill, Stoekdale Shales of, 700; 



section in, 701. 

 S-pJicBroidina ornata, 6. 

 Sphenospondylus, 46. 



gracilis, 47. 



Spheroids of the granite of MuUagh- 



derg, 552. 

 Spinel in greensand at base of Thanet 



Sand, 757. 

 Squatina Cranei, 144. 

 Stegs, gneissose rocks from the, 315, 



316. 

 Staurocephalus limestone, 693. 

 StigTnaria ficoides, Mr. S. A. Adamson 



on a recent discovery of, at Clayton, 



Yorkshire, 375. 

 Stile End, section near, 683. 

 Stobie Mine, Sudbury, section of ore- 

 deposit at, 836. 

 Stoekdale, Browgill beds of Browgill 



and, 674. 



Stoekdale Shales, Mr. J. E. Marr and 

 Prof. H. A. Nicholson on the, 654. 



Shales, comparison of, with 



beds in other areas, 706 ; representa- 

 tives of the, in Scania, 710 ; general 

 characters of the, 714 ; table of the 

 distribution of the zones of the, 

 717 ; formation of the, 718 ; age of 

 the, 719 ; fossils of the, 720. 



Stormberg Beds, 240, 253. 



Strath, Skye, Dr. A. Geikie on the age 



of the altered Limestone of, 62. 

 Strath Kanaird, section along, 427. 



nan Carran, section of the 



ground between Loch More and, 

 415 ; section between, and Loch 

 Glendhu, 415. 



Stratigraphy of the Limestone of 



Strath, Skye, 67; of the Upper 



Cretaceous series in Lincolnshire, 



322. 

 Streams, Mr. E. D. Oldham on the law 



that governs the action of flowing, 



7oo. 

 Stronechrubie, plateau east of, 420. 

 Stubbington, Upper Bagshot beds of, 



606. 

 Sudbury, Greensand bed at, 758, 

 , Canada, Prof. Bonney on a part 



of the Huronian Series in the 



neighbourhood of, 32. 



, quartzites of, 35, 41 ; 



matrix of conglomerate from, 35 ; 

 breccias of, 38 ; grits of, 40. 



, Mr. J, H. Collins on the 



copper-deposits of, 834. 

 Sunningdale, Bagshot beds near, 166, 



167. 

 Sunny Brow, 687- 

 Sussex, Squatina Cranei and the 



mandible of Belonostomus cinctus 



from the Chalk of, 144. 

 Suva, Fiji, foraminiferal deposit at, 



2. 

 Svnndale Beck, Stoekdale Shales of, 



699. 

 Swinley, Bagshot beds at, 165. 



Table-Mountain Sandstone, 241. 

 Tachylyte, Mr. G. A. J. Cole on some 



additional occurrences of, 300. 



of Ardtun, analysis of, 303. 



Tafarn-y-botel, granite in gneiss at, 



492. 

 Tarannon Shales, Stockdale-shale 



Trilobites from the, 714. 

 Taylor's Eock, gneiss and greenstone 



from, 315. 

 Teall,Mr. J. J. H,, on Eock-specimens 



collected by Mr. Fox from the 



islands off the Lizard Head, 314. 



