442 



INDlfe. 



g 



PACE 

 12 



18 

 19 

 22 

 2S 



41 



82 



99 



101 



SAt/^ description of the rock districts of . . . 



small quantity of alluvial land in ... 



description of the Coasts of .... 



remarkable slide of the cliff in .... 



detailed description of the rocks of . . . 



Marble limestone alternating with shell limestone reposi 



on syenite in ....... 



account of the mineral substances in . . . 



junction of trap and shale in .... 



■ description of the marbles at Strath in 



Slate, interstratified with limestone containing madrepores^ in 



Somersetshire ........ 344 



Sleat distinct in Sky, consists of mica slate .... 2S 



Slide, remarkable one of the cliff, in Sky .... 22 



of the hill in Strathaird in Sky .... 24 



in the conglomerate, at Mount Radford . . , 362 



numerous on the coast of Somersetshire . . . 372 



Somersetshire, Leonaud Horner, Esq. Sketch of the Geology of 338 

 Sphenc, found in the granite of Glen Tilt .... 301 

 Stalactites, abundant in a cave in Sky .... 26 



Steatite, occurs in the trap in Sky . . . . . 91 



mixed with the marble of Glen Tilt . . 283 — 285 



Stilbite, abundant in Sky ....... 85 



Storr, in Sky, Zeolites abundant in the trap at . . . 16 



Strath, district in Sky, lies on a bed of limestone . . 7 



Description of ....... 15 



Strathaird, in Sky, situation of the district so called . . 5 



almost entirely composed of secondary strata . 7 



remarkable trap veins at 79 



Stratified rocks, in Sky, description of .... 31 



.. their contact with quartz rock and mica slate 31 



Strontian, sulphate of, found crystallized in the septa of lime- 

 stone masses, in Somersetshire . . . . • 371 



Submarine forest, on the coast of Somersetshire . . . 380 

 SwEDENSTiERNA, C. T. An account of the Swedish Corundum 



from Gellivara, in Lapland . . . . . 415 



