260 DK. C. A. MATLET ON THE [June I912, 



The sandstone is visible on the east, near the Blythe, and it is again 

 exposed behind Barston ParkParm, where some 6 feet of sandstone 

 and grey marl may be seen lying horizontally. It also occurs in 

 the ditch by the side of the lane leading from the farm down to the 

 Eiver Blythe, and must be dipping westward towards the Bhaetic 

 outlier. 



I^orth of Barston the ground has not been completely mapped by 

 me ; but I have observed a grey marl-band with some sandstone 

 occupying the little valley south of Hampton-in-Arden and passing 

 thence towards Barston. Further, on the west side of the Copt 

 Heath outlier, at Sandals Bridge Brickworks, near Solihull, 4 feet 

 of grey-green marl and shale, with a hard sandstone band, occurs, 

 overlying some 20 feet of red and green (but mostly red) marls, 

 and covered by pebbly drift. This grey zone, in which I found 

 comminuted fish-scales, etc., probably represents the base of the 

 Arden Sandstone Group. Hence, despite the superficial deposits, 

 it is not unlikely that, when the ground about Copt Heath is fully 

 mapped, it will be possible to plot out the course of the Arden 

 Sandstone Group as an outcrop completely encircling the outlier. 



{b) Shrewley to Preston Bagot and Henley-in- Arden. 



Let us now return to the type-locality at Shrewley, and trace the 

 sandstone to the south and west. The upper boundary of the zone, 

 though obscured in places by drift-gravel, etc., can be followed 

 without much difficulty to High Cross (near which a small outlier 

 occurs), Holywell (once famous for a spring which issues from the 

 sandstone), Kington Grange, and Preston Green. In the country 

 about Preston Bagot, from Pettiford Lane to Lapworth Street, a 

 distance of about 4 miles, the sandstone forms extensive outcrops, 



Fig. 6. — Section along or near iJie LapiuortJi and Henlei/ -in-Arden 

 branch of the Great Western Railway, shoiving the folding of 

 the Arden Sandst07ie. 



w.s.w. e:.n.e. 



near Buckley Bushwood Finw.ood 



Henley- R Alne Green Stream Canal • 



.in- Arden ! __' — \ , \ ^^ i ; 



[Horizontal scale: 1 inch = l mile.] 



with inliers of Lower, and outliers of Upper Marls, consequent 

 on the gentle undulations into which the strata about here have 

 been thrown. These undulations are not only revealed by the 

 mapping, but are (or, at least, were some sixteen years ago when I 

 visited the ground) well exposed along the line of railway between 

 Lapworth Station and Henley-in-Arden (see fig. 6, above). The 

 Geological Survey map shows a doubtful fault in this ground 

 following the course of the pretty little Bushwood valley, which 



