OP THE NORTH COTTES WOLDS. 



139 



Vol. 57.] 



lack of insight as to the identification of strata, which^was gained 

 by subsequent research. To complete the subject of the develop- 

 ment of the intervening beds in the Cotteswolds, and the effects of 

 the Bajocian denudation, I may give here a summary of the stratal 

 development along the Banbury & Cheltenham Railway in com- 

 parison with Cleeve Hill. A revised section, of the strata on the 

 other line of railway, at Ched worth Wood, was published in ' Mid- 

 Cotteswolds,' p. 425,. 





Cleeve 

 Hill. 



notgeove 

 Station. 



Haesord 

 Cutting, 



Aston 

 Faem. 





Ft. 



ins. 









FhilUpsiana-heds ... 



10 



1 



None. ^ 







Sourguetia-hedis 



13 



6 



None. 



1- None, 



None. 



Witchellia-hed. 



4 







None. ' 

 19| 



Ft. 





Notgrove Freestone ... 



20 



(about) 



8 



None. 



Gryphite-grit 



5 

 17 







(about) 



3 



incomplete. 



10 





T. BucJcmani-grit ... 



None. 



Lower Trigonia-grit . 



7 



(about) 



; 







Snowshill Clay 



1 



4 





None. 



None. 





5 







C;^^^^^^^^^_^ihstone 



Ft. 

 5 



Ft. 



4 



Harford Sands 





6i 



41 



The result is that in an east-by-south traverse from Cleeve Hill 

 the Phillipsiana-to-WitcJieUia-heds soon disa]^^ear. The Notgrove 

 Freestone extends for some distance in contact with the Upper 

 Tt'igonia-gnt, but is distinctly thinner at Harford cutting than at 

 Notgrov^ Station. Then there is a rapid disappearance, and the 

 Upper Trigonia-giit is found resting nearly on Harford Sands 

 within a short distance. 



Farther in the same direction more disappearance takes place. 

 At Little Rissington the Clypeus-giit is almost in contact with the 

 Upper Lias. And then the Upper Lias becomes gradually less, for 

 Prof. Hull says : ^ 



' At Knot Nook, on the borders of Wychwood Forest, I found Inferior Oolite 

 lining the sides of the dell, of which Marlstone formed the bottom, with scarce 

 a trace of Upper Lias Shale between [them].' 



I have not been able to locate the place exactly, but it is evidently 

 in the same direction. 



All these observations show a continuous denudation of strata, in 

 passing from Cleeve Cloud in a direction east-by-south. Their 

 significance may be considered more fully in connection with what 

 is found in the North Cotteswolds, to which attention may now be 

 directed. 



^ Mem. Geol. Surv. 1857, ' Geol. of Country around Cheltenham ' p. 25. 



