686 ME. J. E. MAER AND DR. H. A. NICHOLSON 



half a mile to tlie north by the great dip-fault, and the next section 

 in the Stockdale Shales is met with in Scot Beck. A dip-fault runs 

 down this stream, bringing the Stockdale Shales of the left bank 

 against the Ashgill Shales on the right. The hard mottled pyritous 

 limestone of the Atrypa-flexuosa zone is seen on the left of the 

 stream, containing no fossils here. Above it are two or three inches 

 of hard, bluish-black, unfossiliferous shales, apparently belonging to 

 the Bimorphograjptus-zone, and above these is a smashed mass of 

 shales with a few badly preserved Graptolites, including Monograjptus 

 Jimhriatus, Mch., M. concin7ius, Lapw., and Petcdograptus ovato- 

 elongatus, Kurck, beloDging to the fimhriatus-zone. The usual 

 strike-fault evidently occurs at the base of these, and accounts for 

 their crushed condition. Lower down the stream the Browgill Beds 

 are seen, with many black bands, which are greatly hardened, and 

 no fossils were seen in them. Immediately to the west of this a 

 drain was cut in 1886 in the field, and exposed the spinigerus-heda 

 with beautifully preserved specimens of Monograjptus sjpinigerus ; and 

 at the summit of these were a few inches of the mudstones of the 

 erinaceus-zone. After crossing a mass of Coniston Limestone brought 

 against the Stockdale Shales by trough-faults, the depression 

 marking the position of the (probably) f aulted- out Skelgill Beds may 

 be traced westward across Nanny Lane, after which it bends to the 

 south-west, and so is continued into Skelgill at the Upper Bridge, 

 as previously described. On the moorland to the south of this 

 depression are many small quarries in the Browgill Beds, which 

 contain numerous minute and indeterminable Brachiopods. These 

 beds are traceable on the high ground to the south-east of the 

 beck to near High Skelgill Farm. 



SJcelgill, 



It will be remembered that the Skelgill Beds were last seen where 

 the stream left the wood and ran for a few yards over a swampy 

 tract. It here turns due south, and is presently crossed by the 

 bridge leading to High Skelgill Farm. The Browgill Beds first 

 appear in the stream just above this bridge, and consist of pale green 

 shales, interstratified with which are a number of indurated grey 

 bands, the lamination-planes of which are marked with minute 

 wrinklings, which render the contained Graptolites undeterminable. 

 They are almost certainly the crispus-beds, the turriculatus-heds 

 being concealed under the alluvial material higher up the stream. 

 About 30 yards below the bridge the calcareous nodular bands 

 forming the base of the Upper Browgill Beds are found, and are 

 succeeded by the usual pale shales with interstratified grit bands, 

 with which no Graptolite-shales were seen ; and these pass up, in 

 the way described when dealing with the Kentmere section, into the 

 Lower Coniston Plags, which contain well-preserved fragments of 

 vomerine Graptolites. Beyond this the beds strike through Dove- 

 nest "Wood to the eastern shore of Windermere. 



