Vol. 62.] HIGHEST SILURIAN ROOKS OF THE LUDLOW DISTRICT. 215 



exhibited in an old quarry off the road, and again in the river-bank 

 to the south-east. The lowest beds of the Lower Whitcliffe Flags (C) 

 are not exposed, but the higher members may be studied in an old 



Eig. 8. — Geological map of the neighbourhood of Onibury. 

 (The map is oriented north and south.) 



5g^=E?=£f^^ Scalc:-2 inches=l mile. 



l-:-^l Old Red Sandstones 

 E~3 Rhyitchonella-m&gs 



Eurypterid Shales CHI Yellow Sandstones FS^ Chonetes-Fla.gs 

 3 Z)fl>';7z-Shales ESu3 Couc/iirfiKiit-Limestones L^dJ Alluvium 



quarry in the wood west of Upper Park Farm ; while the Upper 

 "Whitcliffe Elags (D) are still worked farther south in another 

 old quarry, where the Concretion-Band (C b) is visible 6 feet from 

 the base. 



(b) Onibury-Norton Lane. 



Crossing the railway at Onibury and taking the lane leading to 

 Norton, a large quarry in the Downton-Castle Sandstones (E) is seen 

 200 yards above the post-office on the west side of the road. Some 

 32 feet of rock are exposed, and the beds dip E. 15° S^ at 12°, but 

 neither the highest nor the lowest beds are visible. (Cf. vertical 

 section, fig. 9, p. 216). 



The lowest beds seen are the massive sandstones (E c), but they 

 are only exposed for a few feet in the south side of the quarry, 

 where working has been carried on to a lower level than elsewhere ; 

 their massive bedding and irregular fracture are characteristic, and 



