Yol, 6^.~] OF THE BATH-DOULTING DISTKICT. 387 



(vi) The Upper Trigonia-Grit (Garcmtiance). — The geo- 

 graphical extent and principal lithological characters of this deposit 

 have already been noticed. 



(v) Dundry Freestone. — In the well-known quarry near 

 Dundry Church these beds are actively worked. Above them are 

 the ' Coralline Beds/ or Upper Coral-Bed ; below them, as Sir 

 William Guise discovered as long ago as 1858, is the equivalent of 

 the Upper Trigonia-Grit. 1 But, while Sir William pointed out the 

 correct position of the freestone-beds at Dundry, lack of more 

 extensive knowledge led him to correlate them with the Doulting 

 Stone and Anabacia-JAmestones (of the present paper) of the 

 neighbourhood of Limpley Stoke — strata which we now know were 

 formed after the Upper Coral-Bed or ' Coralline Beds.' 



At Maes Knoll, Dundry, the Dundry Freestone is not seen in situ 

 above the Upper Trigoyiia-Grit ; but recently Mr. Talbot Paris and 

 I found, among the rock thrown up in the Wansdyke, bored free- 

 stone which we immediately recognized as Dundry Freestone. 



The Dundry Freestone has not been identified hitherto outside 

 the Dundry area ; but, in the admirable section in the trial-shaft at 

 Timsbury Sleight, it was seen between the Upper Trigonia-Grit and 

 the Upper Coral-Bed. Here it was only 4 feet 3 inches thick, as 

 against about 27 feet near Dundry Church. The freestone is also 

 represented near English Combe (p. 416) ; but at Midford, and over 

 the greater part of the Bath-Doulting district, it is wanting. 



(iv) Upper Coral-Bed (Truellii). — This deposit is of excep- 

 tional interest, in that it marks a time when very similar conditions 

 prevailed over the greater part of the West of England. It is 

 typically developed at Midford, and is the equivalent of the 

 ' Coralline Beds ' of Dundry, and of the Coral-Bed of Bodborough 

 Hill and Worgan's 2 Quarry in the Slad Valley, near Stroud. 



The few records of corals in the list of fossils from the Inferior 

 Oolite of the Bath-Doulting district (Table YI, facing p. 436) 

 indicate very inadequately how individually numerous are the few 

 species that do occur. This bed might be appropriately called the 

 ' Isastrcea-Bed.' It is also of particular interest, in connexion with 

 its micro-organisms — especially its micro-brachiopods. 



Mr. Charles Upton had, some time before I undertook the investi- 

 gation of this district, obtained micro-brachiopods from the Coral- 

 Bed of Worgan's Quarry in the Slad Valley, similar to those which 

 Charles Moore was so successful in finding in the ' Coralline Beds ' 

 of Dundry. My conclusion, that the coral-beds of Midford, 

 Timsbury Sleight, Dundry Hill, and Worgan's Quarry were con- 

 temporaneous, was endorsed by Mr. Upton finding in material from 

 the two first-named localities forms similar to those from the last 



1 Proc. Cotteswold Nat. F.-C. vol. ii (1859-60) pp. 170-75. 



2 Sometimes spelt ' Wordens.' Mr. Upton tells me that ' Worgans ' is the 

 more correct, and is probably a corruption of ' Virgins.' 



