Ji82i.3 the Geology of the Malvern Hills. 23' 



rock on the side of the road as it rises along the side of the 

 valley above Little Malvern, and winds round the northern 

 face of the Herefordshire Beacon." 



Felspar and quartz, ^* with a little mica and epidote, are de- 

 scribed as principally composing the rocks of the western 

 side of the range." 



Compact felspar f hornblende, quartz, and steatite, " of an earthy 

 texture, imbedding detached crystals of felspar, form a 

 rock on the south side of Holly Bush Hill." 



Opaque quartz and silvery mica, " in the form of a vein, occurs 

 on the side of the road leading up to the Wych." 



Felspar a7id mica, " united by a ferruginous clay, as far as 

 the closeness of its texture would admit of decision, formed 

 a massive rock exposed on the south end of the range, 

 called Ragstone Hill by the quarriers. The rock is of an 

 olive-green colour, and is occasionally traversed by veina- 

 of calcareous spar." ,, 



Conglomerate, " fine grained, of a dark-brown colour, ani# 

 composed of felspar, steatite, and calcareous spar, united 

 by a ferro-argillaceous base, and containing some minute 

 specks, of a greenish yellow substance, in diverging fibres, 

 which is probably actinolite. This rock, which occurs a.? 

 short way to the south of the Herefordshire Beacon^j 

 attracts the magnet." 



Conglomerate, of rounded masses and crystals of quartz and 

 felspar, with some hornblende united by an argillaceon**? 

 cement, in the new road lately made on the side of Nortl^» 

 Hill. 



Article III. 



An Account of a remarkable Stratum of Limestone, situated ai;^ 

 Colder Side. ( With a Plate.) 



The stratum of which, in the following pages I have endea- 

 voured to give some account, is situated in the farm of Calder^ 

 Side, in the parish of Kilbride, about 10 miles to the south of 

 Glasgow; and occurs in the position noted in the following 

 table : 



Feet. Inches. 



Alluvial earth. 

 Bituminous shale. 



Bastard ironstone, and reddish-black bitumi- 

 nous schistus 9 



Perforated stratum, to be described 1 



Very thin stratum of reddish-black schistus. 



Ironstone 2-^ 



Schistus abounding in quartz sand. 6 



