388 



MISS G. L. ELLES ON THE WENL0CK 



[May 1900, 



(A) Sections on the North Side. 



(Aa) Trewern Brook. 



An excellent section, comprising all the beds of Wenlock Shale 

 seen on the north side of the Long Mountain, is laid bare on the 

 banks of Trewern Brook and its tributaries north-east and south of 

 Middletown Station. 



Zone of Cyr tog rapt us Linnarssoni, Lapw. — The lowest 

 beds of the Wenlock Shale Series are exposed on the left bank 



Fig. 5. 



Map 



illustrating 



the Exposures in 



TREWERN BROOK 



Scale of ^ of a Mile. 



Purple Shafes 



S M a-i 





u^ 



atss' 



otvi 





I way Bridge 



merated in Table III, col. 

 at 40°. 



at the bend of the stream south 

 of Gatehouse Farm, just where 

 it is joined by a tributary from 

 the north. These consist of hard, 

 calcareous, earthy flagstones, which 

 yield a fairly abundant fauna of 

 small brachiopods and tri]obites 

 (Phacops, etc.), but no grapto- 

 lites. The lower series of Purple 

 Shales (? Taraunon) are seen in 

 the tributary stream immediately 

 above its mouth. 



Following down stream, the next 

 exposure is seen on the left bank, 

 just opposite a hedge on the right 

 bank, and here comes in a series 

 of bluish-grey calcareous shales 

 which weather to a soft earthy 

 grey. The softer bands are very 

 fossiliferous, but in the harder 

 bands fossils are rare. From this 

 locality I collected the forms enu- 

 (p. 390). The beds here dip S. 10° £., 



