INDEX. 



44] 



Red sanchtone, alternates wMh schist, at Loch Eishort in Sky 



interstratified with beds of schist, in Sky 



in Sky lie between limestone and quartz rock 



its characters ..... 



in the North of Ireland, described 



alternating with greywacke, at Scabro hill 



thickness of the formation of, at StrangTord 



/ Lough ...... 



^ of Minehead, described 



marhj, nrar Wotton Courtney, described 



argillaceous, in Somersetshire, described 



Salilite, found in Glen Tilt . - . 



Salt mines, of Cardona in Spain, Dr. Traill's Observations on th 



Sandstone, upper bed of, in Sky .... 



remarkable disposition of the strata of, in Sky 



FUttz formations in the North of Ireland, described 



Green, in the North of Ireland, described 



of Ireland, fossils of ... 



lied. See Bed sandstone. 



Scavig, Loch, Description of ..... 



Schiefer spar, sometimes found in the calcareous beds in Glen 



Tilt 



Schist, of Glen Tilt, described ..... 



singular variety of, found in Ben Gloe 



Section, remarkable one shewn in the valley of the Tilt 



Serpentine, nohle, commonly mixed with the marbles of Scotland 



Seymour, Lord Webb. Description of a Clinometer 



Shale, its thickness in the Lincolnshire Wolds 



Shell in tr If, bed of, in Glen Tilt .... 



Skey, Joseph, M D, Physician to the Forces. Remarks upon 

 the Structure of Barbadoes, as connected with specimens 

 of its rocks ........ 



Slaj, Dr. Mac Cullogh's Sketch of the Mineralogy of 



general geographical description of ... . 



— great Northern division consists of trap . . . 



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