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240 Putting aside for the present the sculptured stones as hardly belonging to our subject, and the "cat" or battle stones, their predecessors, though they are numerous, as might be ex- pected among the pugnacious Celtic races who inhabited the country, the remaining rude stone monuments are not numerous. The free-standing dolmens are few and far between, some half- dozen for the whole country, and none of them with histories or traditions attached to them. The circles, however, are numerous and important, and to some extent are calculated to throw light on our investigations. If we exclude the two battle-fields of Moytura, they are infinitely more numerous than those found in all Ireland and Wales put together, although there is only one group, that at Stennis in the Orkneys, that can compare with the great English examples.

Their distribution too is interesting. No stone circles exist in the lowlands or south of the Frith of Forth and Clyde; and dolmens are rare in these regions, though this may arise from the extent to which cultivation is carried on there. Until, however, a statistical account is compiled, accompanied with a map, it is difficult to speak confidently on such a subject, but the general impression is that the lowlands are not, and never were, a region of megalithic remains; and if this is so, it is one of the many proofs that the dolmens are neither pre-Roman nor Celtic. At least we have no reason to believe that the Teutonic races who now occupy that country were settled there in the time of Agricola. But if the Celts or Picts who then inhabited that land had been in the habit of raising megalithic structures, we would have been more likely to find traces of them in that densely inhabited country than in the bleak uplands of Aberdeenshire, or the bare pastures of the Orkney Islands.

The district of Scotland where these circles and rude stone monuments most abound is on either side of a straight line drawn direct from Inverness to Aberdeen, which is a locality where sculptured stones are also found in considerable numbers, but the rude stone monuments are not found in Angus or Fife, where their sculptured successors are most numerous. The district of the circles par excellence in Scotland, however, is not on the mainland at all, but in the northern and western isles. The principal group is in the