1856.] 



SALTER LONGMYND FOSSILS. 



247 



series. See Section, fig. 1. The 

 fossiliferous beds, therefore, are 

 fairly packed in with strata which 

 are not only distinct in mineral 

 character from any of the Llandeilo 

 flags or Lingula-beds to the west 

 of them, but are unlike the upper 

 portions even of the Longmynd 

 rocks themselves. 



The transverse valleys or ''gut- 

 ters" on the east side of the moun- 

 tain afford excellent sections. Of 

 these, the brooks at All Stretton, 

 Church Stretton, Little Stretton, 

 Minton, and Batch are the principal; 

 and along these rivulets the follow- 

 ing succession may be everywhere 

 observed, in ascending order*. 



1. Dark-olive schists, with very 

 rare lines of crystalline limestone. 

 Church Stretton, All Stretton, Bro- 

 cards Castle, &c. 



2. Harder beds, often rippled, 

 some felspathic, alternating with 

 thin courses of dark-greenish shale. 

 All Stretton Quarries, the Burway, 

 and Minton. 



3. A thick series of hard and 

 greenish sandstones, generally very 

 fine-grained, except near the top 

 where they are flaggy, rippled, and 

 micaceous, and contain the fossils 

 hereafter noticed. These sand- 

 stones form the hills of Synold's 

 Coppice and Bodbury Ring, are seen 

 at the Carding Mill, the Devil's 

 Mouth, Winter Hill, and the ridge 

 between Round Hill and Callow 

 Hill, and have been traced as far as 

 the Packet Stone, above Minton. 



4. Red slates and harder beds. 

 Conspicuous above the Carding Mill, 

 Church Stretton, W. of Yearling 

 Hill, Little Stretton. 



5 . Alternating grey and red slaty 

 beds and sandstones. 



6. Hard grey beds like No. 3. 

 Light-spout Waterfall, above Church 

 Stretton. 



Qq 



^ 



sq 



o 



§j CO 





/ 



C "> 



« « s 9 



o) V g S 



pq 



.S a» 



^n3 

 si C 



so « 

 tJT3 

 es ea 



* See also Silurian System, 1839, chap. xxi. p. 255, and p. 717. pi. 32. fig. 1, 



