Clji^ ^talcrgital Stnitturc of tl^t 

 pptr ^artion of guntirg pill 



By S. S. BUCKMAN, F.G.S., atsd E. WILSON", F.G.S. 



I. Intkoductiox. 



rriHE strata which we have investigated form the upper 

 -■- portion — about the upper 100 feet — of that isolated, 

 flat-topped eminence known as Dundry Hill. They com- 

 prise deposits which would usually be known as Marlstone, 

 Ul^per Lias, Supra-liassic sands, and Inferior Oolite. wing- 

 apparently to a similarity in litliic structure between the 

 Marlstone-rock and a certain well-known bed of the 

 Inferior Oolite, the whole of the above-mentioned deposits 

 have been mapped by the officers of the Geological Survey 

 as Inferior Oolite (g 5) around nearly the whole of Dundry 

 Hill. 



II. Historical Retrospect. 



We would notice certain publications w^hich have dealt 

 with the strata of this hill in order to show what has been 

 accomplished. 



Conybeare and Phillips^ noticed Dundry Hill, and re- 

 ferred to the ironshot nature of the stone ; wdiile De la 



1 ' Geology of Eugland and Wales,' pt. i. (1822), p. 236. 



188 



