520 LONGMYNDIAN INXIERS AT OLD RADNOK, ETC. [Aug. I9OO, 



of that series. From Haughmond Hill to Old Radnor Hill is well 

 nigh 40 miles ; it is nearly the same distance from Old Radnor Hill 

 to Huntley. From Huntley to Haughmond Hill is about 60 miles. 

 These three localities are situated at the angles of an isosceles 

 triangle, whose apex is at Old Radnor, and whose base corresponds 

 for a great part of its course with the Malvern-Abberley axis and its 

 northward continuation. It is highly probable that Longmyndian 

 rocks occupy a considerable portion of this triangular area below 

 the Palaeozoic strata, and it cannot be doubted that this ancient 

 series, whose vast thickness is well known, extends far beyond these 

 limits in other directions. 



EXPLANATION OF PLATE XXVIII. 



Geological sketch-map, showing the relations of the Old Radnor inlier to 

 other ancient rock- masses, on the scale of 8 miles to the inch. 



