166 PROF. T. T. GROOM ON THE GEOLOGICAL [May iSqQ^ 



Pentamerus (or StricJclandinia) sp., Leptocoelia liemisphcerica (1\ 

 crinoids, and a trilobite. 



From debris a little south of Castle Coppice (M 114) I obtained 

 the following fossils : — Leptocoelia liemisplioirica, DinohoVas sp,, Pen- 

 tamerus sp., Beyi'icliia complicata, Favosifes (?), and crinoids. The 

 dip of the sandstone could not be determined. 



A third, much smaller, patch of May Hill Sandstone was revealed 

 by an excavation made between Bronsil and Upper House Farm, 

 The dip here was north-westerly at a low angle. 



The Grey Shale forming the rising ground east of Beacon Farm 

 is covered by a Drift similar to that mentioned on pp. 161, 163. 



In considering the Bronsil area, it remains to be pointed out 

 that, though the observed facts agree fairly well with the view that 

 the strike of the Grey Shales, when traced from south to north, 

 gradually curves round from north-west through north to north- 

 east and south-east, the area occupied by the shales must be 

 traversed by some fault or faults (other than those indicated in the 

 map, PI. XIII) cutting out the Black Shales; for, supposing the 

 latter to form a similar curve, they ought to appear both south, 

 west, and north of Upper House Farm, whereas in reality Grey 

 Shales are found everywhere in places not occupied by May Hill 

 Beds. It is not sufficient to suppose that the blocks of May Hill 

 Sandstone are simply let down into the otherwise undisturbed 

 Malvern Shales ; some faulting-down of the Grey Shales themselves 

 in the eastern part of the area must have occurred. 



It may, lastly, be observed that igneous rocks appear to be much 

 less developed in the Bronsil area than in the two districts to 

 the south. No traces are visible of the middle igneous band, and 

 there seems to be little reason to believe that this is present, but 

 not exposed, for the basalts make a very distinct physiographical 

 feature in the Pendock's Grove area ; whereas smooth low ground 

 appears in the Bronsil district in places where these rocks might 

 be expected to occur. This igneous band seems either to have 

 died out towards the north, or to have been faulted out, together 

 with the Black Shales. The relative insignificance of the Coal Hill 

 band rather favours the former hypothesis. 



V. The Mat Hill Sandstone Escarpment. 



The escarpment forming the western boundary of the Cambrian- 

 shale district extends from Castle Coppice on the north to near 

 Hayes Copse on the south. For most of its length it rises sharply 

 from the adjoining lower ground, but between Martins and Hanging 

 Lift, and again south of High Wood, the slope is gentler. It is 

 interrupted at two points by small transverse valleys which give 

 passage to streams : first between Bronsil Lodge and Wain Street, 

 and secoadly south of Powick. 



The dips (as shown on the map, PL XIII) and the strikes of the 

 beds correspond approximately, so far as they are visible, with the 



