7° PROCEEDINGS COTTESWOLD CLUB igio 



At Horton, in the South Cotteswolds, there are, in de- 

 scending order, these beds : White Oohte, Clypeus-Ght, and 

 Upper Trigonia-Gvit, and the first two equal the Clypcus-Ght 

 of such places as Leckhampton Hill. HoU called the White 

 OoHte the " Upper Ragstone," and thought it represented the 

 whole of the Clypeus-Gvit of more northern sections. The 

 local Clypeus-Gvit of Horton, together with the Upper Trigonia- 

 Gvit, he denominated "Lower Ragstone," and paralleled them 

 with the Upper Trigonia-, Buckmani-, and Lower Trigonia- 

 Grits of Rodborough. Holl also noticed that while his " Lower 

 Ragstone " rested directly upon the " Building Freestone " at 

 Horton, in the Vale of Nailsworth it reposed upon the Oolite 

 Marl (which was a few inches thick) ; while when followed still 

 further north it became increasingly-widely separated from the 

 OoUte Marl by the wedge-like incoming of the Upper Freestone. 



Between 1863 and 1880 little of importance appeared. 

 Prof. James Buckman returned to the discussion on the 

 allocation of the " Sands," and endeavoured to indicate the 

 dates of the various deposits thus colloquially designated and 

 their equivalents ; but his conclusions have not proved very 

 satisfactory.' 



In 1880 Edwin Witchell communicated a useful paper 

 entitled " Notes on a Section of Stroud Hill, and the Upper 

 Ragstone Beds of the Cotteswolds."^ Witchell noticed above 

 the true Clypeus-Gvit of Stroud and Rodborough Hills some 

 beds of " compact white fine-grained oolite," which he thought 

 worthy of distinct designation, and therefore called them the 

 " White Oolite." Hull had said that the beds immediately 

 below the Fullers' Earth " towards the south-eastern part 

 of the Cheltenham district " were also " rubbly white oolite." 

 So Witchell thought his beds must correspond to Hull's. 

 Nevertheless, he could not understand why Hull termed them 

 " Clypetis-Gvit," for the rocks that merited that name in 

 the Stroud district came below his White Oolite. Therefore he 

 ventured to amend matters, applying his term " White Oohte " 

 to the topmost beds and restricting the appellation " Clypeus- 

 Gvit " to the beds full of Clypeus Ploti and Tcrcbr alula globata, 

 auctt. non Sow. 



1 Quart. Joum. Geol. Soc, vol. xxxiii. (1877J, pp. 1-9, and vol. xxxv. {1879), PP- 736-743- 



2 Proc. Cotteswold Nat. F. C, vol. vii., pt. i (for 1879-80), pp. 1 17-135. 



