1857.] 



on the Malvern Hills, 



387 



be regarded as metamorphic rocks, whose actual appearance is due 

 to the heat-influence of the melted syenites in which they are 

 involved, but of whose earlier stratified state or date there is no 

 certain evidence. 



OW Red 



Upper Ti. 

 Aymestry m, 

 L<jwer X 

 Wenlock 

 Wenlock 

 Woolhope 

 May Hill 

 Conglomerate 



Black 

 HoUybusb 



Syenite 



Sandstone. 



Gneissic Beds. 



Next in order of date is the flow of syenitic rocks (6), using 

 this term for a great variety of mineral compounds, in which 

 felspar, quartz, hornblende, mica, and epidote are the most abun- 

 dant. Some of these compounds may be termed granite, and such 

 especially occur in veins which ramify among the hornblendic rocks ; 

 others are a beautiful mixture of felspar and hornblende ; others, 

 nearly pure felspar ; others, masses of mica or hornblende. The 

 composition of these rocks varies from hill to hill. 



The upper surface of this flow was uneven. On the southern 

 part of the new sea bed thus constituted was deposited a thick 

 mass of rather greenish sandstone (c), containing impressions of 

 marine plants, but no other organic remains. This deposit seems 

 to have happened not long after the flow of the syenite, for it is 

 indurated and somewhat altered along and near to the surfaces of 

 contact. This change is best seen at the end of the Kaggedstone 



2e2 



