556 



INDEX. 



Quartz Rock of the District of Appin 



Arisaig 



of the Island of Sky .... 



of Tyndrum, containing galena 

 Schistose, in the group of mountains called 

 Ben-na-Vear, Argylleshire 



Reading, Strata at . . . . 



Rnck-Salt, the Brine Springs at Droitwich derived from 

 Rona, Island of, Mineralogical Observations on the 

 Rotherhithe, Strata at ...... . 



Rum, Island of, Mineralogical Observations on the 

 Rutile, found near Killin ...... 



Ryegate Fire Stone, Description of the 



St. David's, On the Mineralogy of the neighbourhood of 

 Sand, White, of Alum Bay ..... 



Green, over the Chalk ..... 



Vitrified, supposed to be the effect of lightning 



Sandstoiie, Old Red, the Droitwich Brine Springs occur in the 



■ cuts off the Coal Measures at Bradford 



under the Chalk in the South of England 



— — over the Chalk in the South of England 



Sappare, found at Boharm ...... 



Schihallien, Mountain of. Rocks composing the 

 Septaria in the London Clay ..... 



Sheppcy, Isle of. Description of the .... 



Shiant Isles, Description of the . . . ' , 



Silica, on the sublimation of ..... 



Appearances of a partial solution of, on the Surface o 



some Rocks ........ 



Silicified Wood, in the Island of Egg 



Sky, Island of. Quartz Rock in the .... 



Slaty Rock, peculiar kind of, near St. David's 



South Downs, Hills composing the .... 



Springs, Temperature of, in the Isle of Man 



Staffa, Remarks on ...... . 



PAGB 



473 

 473 

 473 

 479 



475 



1% 

 98 

 391 

 197 

 401 

 437 

 JC6, 



79 



185 

 187 

 531 

 95 

 £83 

 16C 

 227 

 430 

 46G 

 187 

 192 

 394 

 275 



392 

 408 

 473 

 79—85 

 171 

 60 

 501 



