146 PKOF. T. T. GBOOM ON THE GEOLOGICAL [Feb. I9OO, 



map of the Herefordshire Beacon. 1 It is no longer exposed, but 

 numerous fossils may be collected from the debris. During the 

 laying of the foundation of the house at Black Hill, close to the 

 Camp Hotel, and at one time occupied by Jenny Lind, the May 

 Hill Beds were finely exposed. They are mentioned by Symonds, 2 

 and, as he states, there is in the collection of the Malvern Field 

 Naturalists 5 Club a good water-colour sketch of the section, made 

 by Mrs. Walter Burrow. The accompanying figure (fig. 4, p. 144) 

 is a reproduction of a photograph of this drawing, which, owing 

 to the kindness of Mr. H. D. Acland, the present writer was allowed 

 o prepare. 



The view is evidently taken from the south-east, the sandstone, 

 according to Holl, dipping north-eastward. It is therefore, in all pro- 

 bability, inverted, like the Silurian strata immediately to the west. 

 Both grey and purple beds were exposed, but unfortunately the 

 relations between the two were never described. The purple beds 

 C, in the middle of the figure, appear to be separated from the grey 

 beds D either by an horizontal thrust-plane, or more probably by a 

 transverse fault approximately parallel to the plane -of the paper. 

 The relation of the purple beds on the right-hand side of the 

 picture to the beds D again is obscure, for it does not seem clear 

 from the sketch whether they are separated by an irregular reversed 

 fault with a small hade, or by a second transverse fault parallel to 

 the face of the beds D. The perspective appears rather to favour 

 the second of these hypotheses. It would seem probable that a slip 

 of grey May Hill Beds, bounded by two parallel faults running in a 

 general north-easterly direction, has been carried less far south- 

 westward than the two slips of purple sandstone which bound it. 

 Simple depression of the middle slip would suffice to produce this 

 result. 



The fossils which I have collected from the debris of this patch 

 (M349) 3 include: — Lindstroemia sp., StricMandinia sp., crinoids, 

 etc. Fragments of a fossiliferous limestone (M 354, accidentally 

 omitted from the map) were found near the bottom of the hollow. 

 These, perhaps, have been derived from calcareous bands in the 

 May Hill Series. 



V. Black Hill. 



This small hill is constituted by an Archaean mass, the schistose 

 layers of which dip north-north-eastward. The mass appears to 

 have been carried in a westerly direction to a greater degree than 

 the Archaean on the north and south, from which it is separated by a 

 pair of transverse dislocations. The southernmost of these, to which 

 allusion has been made on a preceding page, does not seem to have 

 dislocated the Woolhope Limestone. This limestone (like the May 



1 Mem. Geol. Surv. vol. ii (1848) pt. i, p. 84. 



2 ' Old Stones ' 2nd ed. (1884) p. 47. 



3 This and similar numbers preceded by M refer to the Map (PI. VIII) and 

 to labelled specimens. 



