V0I.51O OF THE MID-COTTESWOLDS. 397 



Bed 4 was probably laid down contemporaneously witb the 

 Notgrove Freestone, 1 a deposit which overlies the Gryphite-grit at 

 Leckhampton (see later, p. 410). My interpretation of bed 5 is 

 that it was a sandy deposit really contemporaneous with tbe Gry- 

 phite-grit of Leckhampton, although containing no Gryplicece ; and 

 that beds 6 & 7 may really be contemporaneous with the upper beds 

 reckoned as BucJcmani- grit at Leckhampton, although they contain 

 many more Gryphcm. It must be remembered that Gryphcece are- 

 very bad guides, because local sandy conditions would prevent them 

 from thriving. For this reason they were scarce at Leckhampton 

 during the deposition of the Buckmani-grit, and scarce at Stroud 

 during the deposition of the Gryphite-grit. The term ' Gryphite- 

 grit' must be used, not for a bed containing Gryplwce, for there are 

 many such ; but for any deposit contemporaneous with the gryphaei- 

 ferous beds of Leckhampton, whether such deposit contain Gryphcece 

 or no. 



In regard to the Stroud section, it may be noticed that Hyper- 

 lioceras Walkeri and H. discites have been found at about the 

 same level as a near ally, Lioceras cf. intermedium, at Eodborough. 

 All of these species belong to the family Hildoceratidae, which did 

 not survive the discitce hemera. 



It may be remarked that Mr. E. Witchell placed 12 feet of strata 

 between the Upper Trigonia-grit and the Upper Freestone at 

 Stroud Hill 2 ; this thickness is, however, too small. He assigned 

 it all to Gryphite-grit, but suggested that the lower part might 

 represent the Lower Trigonia-grit. 3 



A similar thickness of beds is shown on the other flank of this 

 ridge, namely at Swifts Hill, the locality memorable for the sad 

 death of Mr. E. "Witchell while engaged in his favourite pursuit. 

 It gives the following section : — 



Section IV. — Swifts Hill. (From Stroud, 1| miles N.E. ; from 

 Leckhampton Hill, 8 miles S.W. by S.) 



ft. ins. ft. ins. 



Upper Tri- 1. Kagstone with Terebratula globata, 

 gonia-gvit. Ehynchonella subtetrahedra, and 



Trigonice about 5 



Notgrove Free- 2. Bluish-grey ragstone, much stained 

 stone. with iron and bored vertically. 



Thickness variable, 2"-7" 5 



3. Grey ragstone, slightly shelly 11 



1 4 



Gryphite-grit. 4. Hard, grey, sandy ragstone, some beds 

 shelly, some not ; GryphcecB in 

 partings, more frequent in lower 

 part 7 4 



1 A fragment (body-chamber) of a rather latumbilicate Witchettia found by 

 Mr. Charles Upton on the rubble-heap of the quarry, with similar matrix, 

 supports this view. 



- ' Geology of Stroud,' section facing p. 5. 3 Ibid. p. 57. 



* Perhaps some of this should be Buckmani-grit, as interpreted at Leck- 

 hampton. 



