A distinguished artist, who happened fortunately to be in the neighbourhood at the time of this interesting discovery, has furnished me with sketches of the locality. He describes the flint flakes as so numerous, that they formed a heap of from eighteen inches to two feet in height when removed from the cist.[151] Other and scarcely less interesting evidences of ancient population are still observable in remote nooks of the Western Highlands, where the Dalriadic Scots first effected a settlement in the land which has borne their name for so many centuries. The road from Port Ellen to the site of the ancient cist, above described, passes for a considerable way through a narrow winding valley, studded with huge boulders and detached masses of rock, preserving evidences of remarkable geological changes many ages anterior to the earliest occurrence within the range of archæological science. Similar evidences are of frequent occurrence along these western shores, where now the restless Atlantic is slowly but unceasingly gnawing the rocky coast into wilder and more picturesque forms, while it strews the stolen debris on its ocean bed, to form new strata and continents for younger worlds than ours. With these evidences of change we have not now to deal. But in various districts of the same neighbourhood, and particularly amid the scenes on which a new interest has been conferred as those in which the poet Campbell passed some of his early years, the curious traveller may descry, amid "the desolate heath" of the poet,[152] indications on the hill-sides of a degree of cultivation having existed at some former period far beyond what is exhibited in that locality at the present day. The soil on the sloping sides of the hills appears to have been retained by dwarf walls, and these singular terraces occur frequently at such altitudes as must convey a remarkably vivid idea of the extent and industry of an ancient population, where now the grazing of a few black cattle alone tempts to the claim of property in the soil. In other districts the half-obliterated furrows are still traceable on heights which have been abandoned for ages to the wild fox or the eagle. Such evidences of ancient population and industry are by no means confined to the remote districts of ancient Dalriada. They occur in many parts of Scotland, startling the believer in the unmitigated barbarism of Scotland prior to the medieval era with evidence of a state of prosperity and civilisation at some remote epoch, the date of which has yet to be ascertained; though there are not wanting periods within the era of authentic Scottish history to which some of these may with considerable probability be assigned. The very simple explanation of such ancient plough-marks which has satisfied the popular mind is apparent in the appellation of _elf furrows_, by which they are commonly known. The prevalence of these infallible tokens of former industry was noted by the Rev. George Maxwell when drawing up