448 



MK. S. 



BUCKMAN ON THE 



[Nov. 1903, 



The Upper Lias at Bredon Hill, then, may he said to be, on the 

 fossil evidence obtained, equal not only to the Upper Lias of the 

 Cotteswolds — Wotton-under-Edge, for example — but also to the 

 overlying Cotteswold Sands and Cephalopod-Bed. If the thickness 

 of these strata in the Cotteswolds be compared with that of the 

 Upper Lias at Bredon, it will be found that they are not so dissimilar, 

 That is the comparison which should be made ; but as the statement 

 stands in the maps and text-books, it seems as if only the strata of the 

 hemerge bifrontis-falciferi, which are 10 feet thick at Wotton, had 

 increased to become 380 feet at Bredon. The evidence obtained at 

 Bredon makes against that — it indicates that there are strata of 

 more than the two hemerse. 



II. Comparison with the Cotteswolds. 



Opportunity may now be taken to compare the Toarcian deposits 

 of Bredon Hill with those of certain Cotteswold localities, places 

 famous for the Cephalopod-Bed and Cotteswold Sands ; the more so 

 as certain supplementary measurements of the latter deposit can 

 now be given. These measurements are the result of work with 

 the level, taken, in two cases (Erocester Hill and Coaley Wood), 

 with the help of Mr. Charles Upton. They supplement, and to a 

 certain extent correct, the data given by me in ' Monogr. Inf. Ool. 

 Ammon.' pt. ii, Pal. Soc. vol. xli (1888) pp. 43-47, and in Quart. 

 Journ. Geol. Soc. vol. xlv (1889) pp. 440-474. 



The following table embodies the information concerning four 

 Cotteswold localities. 



Table III. — The Cotteswolds. — Thicknesses op certain Deposits in passing 

 from North to South. 





Standish 





1 







Toarcian 



Beacon. 1 



Frocester 



Coaley 



Stinchcombe 



Remarks. 



deposits. 



(' Hares- 

 field '). 



mu. 



Wood. 



mil? 





Feet. 



Feet 



Feet. 



Feet. 



1 Alternative read- 

 ing : Cotteswold 

 Sands 210 feet ; 



Cephalopod- 











Clay 110. 



Bed 



2 



8 



31 



[8]* 



2 Cotteswold Sands 

 = variabilis 106 



Cotteswold 











ft. ; Lilli 138 ft. 



Sands 



190 



244 2 



186 3 



195 



3 variabilis 72 ft. ; 

 Lilli 114 feet. 



Upper Lias 











4 Estimates. 



Clay 



130 



64 



[40J4 



18 



3 Stinchcombe Hill 

 is 3 miles from 

 Wotton - under - 

 Edge. 



Total ... 



322 



316 



229| 



221 





Coaley Wood : — Amend section given in Quart. Journ. Geol. Soc. vol. xlv (1889) p. 444, 

 thus : Beds 9 to 13, 61 feet. Beds 16 a & 17, 39 feet. Bed 18, 75 feet. 



