THE 



QUARTERLY JOURNAL 



OF 



THE GEOLOGICAL SOCIETY OF LONDON. 



Vol. II. 



1. Notes on some Recent Sections in the Malvern Hills. By A. 

 H. Green, Esq., M.A., F.B.S., V.P.G.S., Hon. Fellow of Caius 

 College, Cambridge, and Professor of Geology in the University 

 of Oxford. (Eead November 7th, 1894.) 



The main mass of the Malvern Hills consists, as is well known, of 

 crystalline schists and massive igneous rocks which we may with 

 safety admit have an Archaean aspect. These have been largely 

 studied ; but at one spot at least there are rocks of a very different 

 character, which have hitherto received scant attention. They occur 

 on the eastern side of the Herefordshire Beacon. The summit-line of 

 the ridge runs generally north and south, but here it takes a bend 

 away to the west, and encloses an amphitheatre-like recess, in which 

 stands a group of lower hills known as Tinker's Hill, Broad Down y 

 and Hangman's Hill, that are composed of the rocks in question. 



It will be convenient to give them a name, and they may be called 

 shortly the ' Warren House Rocks,' after a farm in the recess. 



These rocks have not been altogether overlooked by former 

 observers. Prof. Phillips must have been aware of their existence,. 

 for in the Oxford Museum I have found a few specimens of them 

 collected by him. He realizes, but does not lay stress upon the fact 

 that they differ in character from the rocks of the greater part of 

 the Malverns. 1 



The area which these rocks cover is correctly delineated by 

 Dr. Holl ; he describes them as ' Altered Primordial Bocks and 

 Post-primordial Trap.' 2 



Among the rocks analysed by the Bev. J. H. Timins are some 

 belonging to this group. 3 



1 Mem. Geol. Surv. vol. ii. (1848) pt. i. pp. 30, 31. 



2 Quart. Journ. Geol. Soc. vol. xxi. (1865) plate facing p. 72. 

 8 Op. cit. vol. xxiii. (1867) p. 352. 



Q. J. G. S. No. 201. b 



