68 



the hill. It has been denuded much in parts; measures in some 

 places five feet in thickness, and is unfossiliferous. I know of 

 no other bed in our district which presents similar lithological 

 characters to this sandy stratum. 



No. 8. — Wavy Sandstone. — This is a hard, brovm, thin bedded 

 rock, with a wavy stratification; it is siliceous in some parts, and 

 calcareous in others. The siliceous portions are unfossihferous; 

 the calcareous are represented by slabs of thin Eagstones, con- 

 taining many fossils. On some of these I found Serpula socialis, 

 Goldf., in great abundance. This bed has a thickness of three 

 feet, and rests on 



No. 9. — Marly Oolite. — Broken up into fragmentary portions. 

 It appears to be the upper portion of the Upper Freestone. 



No. 10. — Upper Freestone. — A thick bedded, coarse grained 

 Oolitic Limestone, used for rough work. This rock was long 

 thought to be unfossihferous ; and considerable doubts were 

 entertained as to the precise position of these beds in the series. 

 During my last visit, however, I succeeded in obtaining from 

 the lower and middle beds a few specimens of large old 

 deformed Terehratula fimbria, Sow., which enabled me to deter- 

 mine its position as superior to the Oolite Marl; and identified 

 the rock as the Upper Freestone, which here has a thickness of 

 twelve feet. 



No. 11. — Thin flaggy Oolite. — This rock sphts into thin layers. 

 Numerous sheUy fragments are found in some slabs, but fossils 

 are rare; thickness, four feet. 



No. 12. — Fimbria-hed, or Oolite Marl. — This bed is weU exposed 

 on the western side of the hill, and consists of a cream-coloured 

 Marl, hke indurated Chalk, interstratified between two beds of 

 Oolitic Limestone, resting upon the uppermost bed of the Lower, 

 and overlain by the thin flaggy beds of the Upper Freestone. 

 It forms a very persistent stratum in the Northern and Middle 

 Cotteswolds, extending across this portion of the plateau, from 

 the vales of Morton and Bourton on the east, to the mural 

 escarpments of the Inferior OoHte on the west; but thinning out 

 and disappearing in the southern part of the range. In some 

 localities, as at Leckhampton, Sheepscombe, and Swift's HiU, 



