army posted on Waden Hill.[110] The siege would then probably be that of Barbury Hill, which Cerdic would be obliged to raise on Arthur's advance; and retreating towards the shelter of the Wandsdyke, he was overtaken at this spot and defeated, and so peace was established for many years between the Brits and the Saxons. It may be true that the written evidence is not either sufficiently detailed or sufficiently precise to establish the fact that the battle was fought on this spot. It must, however, be conceded that nothing in all that is written contradicts what is here advanced, and when to this we add such a burying place, Avebury at one end of Waden Hill, and such a monument as Silbury Hill at the other, the proofs that it was so seem to me to amount as nearly to certainty as we can now expect to arrive at in such matters. Those who believe, however, that all these monuments are absolutely prehistoric, will not, of course, be convinced by any argument derived from a single monument; but if it should turn out that even a more certain case can be made out for the equally modern age of others, that point must eventually be conceded. When it is, I feel no doubt that it will come eventually to be acknowledged that those who fell in Arthur's twelfth and greatest battle were buried in the ring at Avebury, and that those who survived raised these stones and the mound at Silbury in the vain hope that they would convey to their latest posterity the memory of their prowess. STONEHENGE. Although from its exceptional character Stonehenge is not so valuable as some others for evidence of the age or uses of the rest of the monuments of this class, it is in some respects even more important for our argument, inasmuch as it possesses a more complete mediæval history than almost any other of the series. It must be confessed that this history is neither so clear nor so complete as might be wished; but, with the other evidence that can be adduced, it makes up a case so strong as to leave little to be desired. Before, however, proceeding to this, it is necessary to ascertain what Stonehenge really is, or rather was, for strange to say, though numberless restorations of it have been published, not one is quite satisfactory. There is very little discrepancy of opinion with regard to the outer circle or the five great central trilithons, but there is the greatest possible variety of opinion as to the number and position of the smaller stones inside the central or between the two great circles. [Illustration: 22. General Plan of Stonehenge. From 'Knight's Old England.']