78 PKOCEEDINGS OF THE GEOLOGICAL SOCIETY. 



and contains botli soda and lime. They appear to pursue, for the 

 most part, a north-west and south-east course, and so far to corre- 

 spond to the general direction of the strike. 



5. Herefordshire Beacon. — This, which is the second highest 

 eminence in the range, is surrounded near its summit by the en- 

 trenchments of an old British camp ; and it is only the portion of 

 the hill on which the camp is situated, and a narrow strip to the 

 south of it, that be^ng to the sys;;em of rocks I am now consi- 

 dering, its eastern buttresses and the off-standing hill near Little 

 Malvern being composed of altered rocks of an entirely difPerent 

 age. 



Immediately north of Swinyards Hill, and between it and the 

 excavation in the hill-side below the cave, are gneissic rocks having 

 apparently a north-west and south-west course. In the principal 

 mass of the hill, however, on the north side of this excavation, the 

 direction of the strike is from the east of north to the west of south. 

 On the hill-slope, below the south-eastern extremity of the camp, is 

 some uncrystallized hornblendic rock, which has an imperfectly 

 schistose structure, and, from its curved slickenside surfaces, has the 

 appearance of having been squeezed. North-west of this are gneissic 

 rocks, chiefly hornblendic, beyond which is a second band of un- 

 crystallized hornblendic rock, similar to the preceding, which runs 

 very obliquely across the hiU, from the western side of the camp near 

 its middle to the northern extremity of the hiU at the Wind's 

 Point. Beyond this, and forming the north-western slopes of the 

 hiU, are again hornblendic and micaceous gneiss, hornblende-schist, 

 and some mica- schist *. 



Two large granite-veins cross the southern half of the camp from 

 north-east to south-west nearly, sending out branches in different 

 directions ; and a third vein, also a large one, running nearly north 

 and south, occurs on the eastern side of the summit, between it and 

 the lowest fosse of the encampment, splitting up at each extremity 

 into smaller veins. These granite-veins, like those of Swinyards 

 HiU, are conspicuous from the red colour of their orthoclase-felspar. 



6. Between the Wind's Point and the "PR/c/i.— Similar rocks to 

 those of the Herefordshire Beacon are well exposed at the Wind's 

 Point, in the quarry west of Mr. Johnson's hoase, and along the 

 side of the turnpike-road leading to Malvern WeUs. Mica-schist is 

 here overlain by thick-bedded, dark-coloured, schistose, hornblendic 

 rock, and this again by hornblendic gneiss, rendered ochreous by 

 the decomposition of its hornblende. These are succeeded by alter- 

 nations of micaceous and hornblendic gneiss, beds of uncrystallized 

 hornblendic rock, and thinly bedded reddish-coloured granuHte. 

 Beyond these is much amorphous or semicrystaUized hornblendic 

 rock, and then similar rock alternating with hornblendic and mica- 

 ceous gneiss, and some mica-schist. Quartzo-felspathie veins are 

 numerous, some of them of large size ; especially two by the road- 

 side which can be traced for some distance up the hill. In the 



* See also Phillips, op. cit. p. 30. 



