370 DE. W. HIND AND MR. J. A. HOWE ON THE [^Ug. I9OI, 



papyraceus^ Posidoniella Icevis, Leiopteria longirostris (with a verj'" 

 slender long process to the wing), and Glyphioceras reticulatum. 



Along the northern and western border of the Mountain Limestone 

 a most interesting bed of rolled shells and fragments of limestone 

 occurs at or near the top, sometimes interstratified with limestone, 

 as at Castleton and Waterhouses, at others separated from the main 

 mass by a few feet of thin limestones and shales. This bed at 

 Castleton and along the northern boundary has been described fully 

 by Messrs. J. Barnes & W. F. Holroyd.^ I have been able to trace 

 this bed over a great part of North Staffordshire and Derbyshire, in 

 fact wherever the uppermost beds are exposed. It is well seen in a 

 small quarrj^-section about 200 yards south of the road between 

 Warslow and Hulme End, where it occurs interstratified with 

 shales and thin limestones, separated by a short piece of rising 

 ground from an important series of quarries farther south, showing 

 the limestone-succession for several hundred feet. The upper beds 

 of this series are thin, whitish, and contain much chert; the lower 

 are thicker and crinoidal. There is a marked absence of shale. 



A section in the same beds is seen in the gorge of the Manifold 

 from Apes Tor towards Ecton Bridge. The section is much 

 folded, and shows the upper beds of the * massif ' of limestone : — 



Feet. 



Rolled shells and fragments of limestone ... 8 



[Fauna typical of the Carboniferous-Lime- 

 stone Series.] 



Shales with thin limestones 60 



Limestones becoming more massive and free 

 from shales 50 



Fairly thick limestone 21 



Thinly - bedded limestones, with shaly 

 partings 45 



The section here is repeated and faulted by many folds, but the 

 foregoing details would seem to imply that these beds come on 

 above the series shown in the Warslow Quarries. These are seen 

 in the gorge farther west, but owing to the faulting and twisting 

 of the intermediate section, cannot be considered to afford in this 

 spot any evidence of the real succession. 



The beds just above the limestone, which we may regard as 

 passage-beds and coming in at the top of the limestone, are quarried 

 at Butter ton Moor, and show a section of about 20 feet of 

 shales with thin sandstones and limestone, resting on a thick 

 limestone, the base of which is not seen. This series evidently 

 belongs to the base of the Pendleside Group, and we regard the 

 beds as being on the same horizon as those in the Tissington 

 railway-cutting, to be mentioned below. 



The stream which drains the eastern slope of Morridge gives good 

 sections of the Black Limestone Series ; and from that afforded by 

 the stream which rises about half a mile west of Blakemere 



1 Trans. Manch.Geol. Soc. vol. xxv (1897) p. 119. 



