Meanwhile there is one point bearing upon the subject to which it may be as well to draw attention. In Wales and Anglesea, which we may assume to have been the country of the Silures or that to which they were driven, there are no circles, but only dolmens. In Cornwall, where the blood was certainly more mixed, there are both circles and dolmens, and the same is the case at the other extremity of the western district in the Isle of Man. If it is contended that, being nearer to Spain or Aquitaine than Wales, Cornwall must have been earliest and most exclusively inhabited by the dark race, the answer is, that though it may originally have been so, the races in Cornwall had been mixed with Celtic and other blood before the age of the stone monuments; while in the Isle of Man we shall probably see reason for believing that northern blood was infused into the veins of the people, at a very early age, when few, if any, monuments of this class existed, and certainly before all had been completed. [Illustration: 46. Park Cwn Tumulus. Scale 16 feet to 1 inch.] Even a cursory examination of these West Coast dolmens would, I think, be sufficient to prove to any one that the theory that all were originally covered with earthen mounds is utterly untenable. That such chambered graves as those at Uley in Gloucestershire,[187] or Stoney Littleton in Somersetshire,[188] were always intended to be so covered up is clear enough. So was this one at Park Cwn, in the peninsula of Gower, recently opened and described by Sir John Lubbock.[189] It is of the same type as Uley and Stoney Littleton, but has only four chambers arranged on each side of the central passage. One of its most remarkable characteristics is the beautiful masonry of the retaining walls on each side of the funnel-shaped passage leading to the cells. These are so carefully built that it is evident that they were meant to be seen, and the entrance to be kept open. Indeed, unless we fancy it was the monument of some fight, which there seems no reason for supposing, it is evident it must have been kept open till forty deaths had occurred in the family of the chief to which it served as sepulchre, as at least that number of bodies were found in the chambers, but in a dreadfully confused condition, as if the grave had been rifled before, but no implements or trace of metal were left to indicate even approximately its age.