and the Palaozoic System of England, 811 



Olenus* ? (same species as at Hollybush, — Malvern sections 

 of Phillips). 



Asaphus ?, undetermined fragments. 



Cytheropsis Aldensis (as at Aldens on the Stincher, N. B.). 



Siphonotreta micula (as at Wellsfield near Builth, and at 

 Pentre, north of Llangynyw). 



All the above are Cambrian types. 



(2.) " Over these olive shales, and also over some black 

 shales t, with a few traces of Fuci and Orthoceratites in Belswar- 

 dine Brook, are several thin beds of May Hill sandstone and 

 Pentamerus limestone. Dip about 50° E. of south, at 20°. The 

 fossils observed were, — 



Hemithyris hemisphcerica . 

 Pentamerus Icsvis. 



oblongus. 



Petraia (unnamed species, same as at May Hill and Malvern), 



(3.) " One mile west of Harley are olive-coloured shales, like 

 those of Shineton, and with nearly the same dip and strike. 

 They are overlaid (with a small degree of unconformity) by very 

 coarse unfossiliferous May Hill conglomerates; exactly like 

 those which appear at the base of the May Hill sandstone near 

 the top of May Hill. They are seen in numerous openings 

 along the road to Church Green. 



(4.) " Beneath the above conglomerates, in large quarries near 

 Harnage Grange, the true Caradoc sandstone and limestone are 

 both found, dipping 10° E. of South, at about 20°, and full of 

 the following fossils J. 



Or this expansa, Orthis parva. 



vesper tilio. Actonice. 



etegantula,var.a. bilohata. 



All of which are exclusively Cambrian.^' 



Such were Prof. McCoy's notes. His excursion was made 

 during a day of almost unrelenting rain, otherwise his fossil lists 

 would have been more complete. The above facts, combined 



* This was one of the species in Mr. Salter's Ust. 



t In these black shales (as in those of Holly Bush described by Professor 

 Phillips) have been several ignorant trials for coal. 



X Professor M'Coy does not assert (as I stated by mistake to the Geo- 

 logical Society) that the sandstones near Harnage Grange underlie the olive- 

 coloured Olenus shales of Shineton. He merely states facts, and leaves in 

 doubt the exact sectional position of the shales. But he regarded them as 

 probably forming the base of the Caradoc terrace which extends from 

 Horderley to the Severn. The fossils of the olive-coloured shales evidently 

 indicate their true position, and prove them to be on the same parallel with 

 the beds at Builth and Llandeilo. I was led into the mistake above- 

 mentioned by the shortness of Professor McCoy's notes, and by finding 

 that Shineton was close to the Wenlock terrace on the Geological Map. 



