Vol. 67.] 



WEST, MID, AND EAST SOMEESET. 



39 



One of the most noticeable features in the landscape of this part 

 of Somerset is the Butleigh Monument, raised to the memory of 

 Admiral Sir Samuel Hood. In its neighbourhood the ground is 

 very much faulted, the Lias being on a level with the Eed Marls. 

 This is easily seen from the high ground near the quarry, at the 

 cross-roads north-west of the Monument. On the left is the quarry, 

 and by the side of the road, facing the observer, appear the Keuper 

 Marls. Tea-green Marls are poorly exposed in the path below the 

 Monument, and Cotham Marble has also been observed (loc. cit.). 



D undo n -Hill outlier. — Dundon Hill is a very conspicuous 

 outlier to the south-west of the Butleigh Monument. On the 

 summit are two quarries, but the strata are very much disturbed, 

 being at the south-western end of the south-western quarry bent 

 into several little anticlines. The prevalent dip is south-east- 

 wards. The highest bed seen in the Dundon quarries is that corre- 

 sponding to Bed 34 in the Windmill-Hill Quarry. In the road 

 leading up the. hill from Compton Dundon, the Red and Tea-green 

 Marls are finely exposed : then there are traces of the Pteria- 

 contorta Shales ; but by far the most interesting discovery was that 

 of an exceedingly well-bored, nodule-shaped mass of Cotham 

 Marble in its proper stratigraphical position, with numerous 

 specimens of Dimyodon intus-striatus adhering to it. The borings 

 are crypts of LithopJiagi. 



Butleigh-Hill Quarry. — Continuing along the Charlton- 

 Mackrell road from Windmill Hill, the observer will notice two 

 quarries, both on the north side of the road, and about half-a-mile 

 apart. The first is about a mile distant from the Monument ; but 

 the second will be considered first, because it affords the better 

 section. 



In this quarry many of the limestone-beds are rich in pyrite, 

 which, when decomposed, gives rise to cavities that impart a very 

 cavernous appearance to those beds. 



Section m Butleig-h-Hlll Qttaeby. 



Thickness in feet inches. 

 ("Limestones, whitish, in three layers,^, 

 the median being the thinnest. | 

 Owing to their proximity to the VI 1 

 surface, they are somewhat broken 



up J 



Marl, greyish-white, with an earthy 7 q g 



impersistent limestone-bed ) 



Limestone, white 



Marl, greyish- white, clayey 



^ ( Limestone of a grey tint, and rather "> Q 



* \ cavernous ) 



20 C Marl, greenish-grey and brownish, \ n 



'I clayey ) u 



2 ^ ( Limestone, hard, blue and brown- ? 

 " \ centred, cavernous appearance . . . ) 



22. Marl, greenish-grey and white 



23. Limestone, rath er earthy 



24 Marl, whitish and often pale-brown . 



11 



to 

 15. 



16. 



17. 

 18. 



C Ostrea liassica Strickland, 

 ■< Protocardia, Volsella mi- 

 (. nima (Moore). 



''Ostrea liassica, O. cf. ir- 

 regularis Miinster, Dimyo- 

 don intus-striatus (Em- 

 merich), Plagiostoma valo- 

 niense (Def ranee), Cardinia 

 sp. indet. Volsella minima. 



