Mr. Horner on the Mineralogy of the Malvern Hills, 31 1 



bearing becoming E. and W. and the dip N. at an angle of 20" : 

 at the point where the change begins to take place, the strata are 

 very much twisted and broken. The limestone contains large veins 

 of calcareous spar, which in some places has red sulphate of barytes 

 disseminated through it. I also observed that mineral in the interior 

 of the shells that are found in the limestone. In the quarry on 

 the opposite side of the road, there is also great irregularity in the 

 position of the limestone strata : in some places their bearing is N.E. 

 and S.W. with a dip to the N.W. of 40° ; in others, their bearing 

 is N. and S. and their dip E. In this quarry I found a specimen of 

 a madfeporite, resembling in form the lithostrotion of Lhwyd, but 

 much smaller in size. This is the same fossil that is represented in 

 plate V. fig. 3 and 6 of the second volume of Parkinson's Organic 

 Remains. 



§ 62. In the road from Ledbury to Longdon, by the Elolly- 

 Bush Hill, the argillaceous slaty rock, which is the most prevalent, 

 varies considerably in its direction and dip. In the place where I 

 first observed it, after leaving the limestone hills above Ledbury, its 

 bearing was N. and S. with a dip of Q5° to the E. rising up to these 

 hills ; as it recedes from them, the angle of incHnation gradually 

 diminishes. At Low Hurst, the bearing is from N.E. to S.W. 

 with a dip of 50° N.W. Near Castleditch, the seat of Lord Somers, 

 I found the same coarse sandstone that occurs in vertical strata 

 at the foot of the End Hill, as mentioned in § 47 ; the bearing 

 of the strata in this place is N.E. and S.W. with a dip of 30° N.W. 

 Proceeding eastward, towards the Malvern range, the argillaceous 

 rock again occurs upon the rise of the Holly- Bush Hill, in thin 

 strata bearing N. and S. and dipping W. at an angle of 70°. 



§ 63. It appears from the preceding account, that the direction 

 of the stratified rocks is, with a few exceptions, parellel to that of 



