least of these gigantic structures were buried under a tumular mound, precisely in the same manner as the smaller cists. In 1825 a cromlech was discovered on the removal of a tumulus of unusual size, situated near the west coast of the peninsula of Cantyre. It contained only the greatly decayed remains of a human skeleton, but in the superincumbent soil were found many bones, and the teeth of the horse and cow, also in a state of decay. The capstone of this cromlech measured five by four feet, and its four supporters were each about three feet high.[80] A somewhat larger cromlech was disclosed, under nearly similar circumstances, in the year 1838, on the levelling of a large mound or tumulus, in the Phœnix Park, Dublin. The whole of these examples are constructed of rough and entirely unhewn blocks. The annexed figure represents a partially ruined cromlech, at Bonnington Mains, near Ratho, Mid-Lothian, which is interesting from some traces which it retains of artificial tooling. Along the centre of the large capstone a series of shallow perforations have been made at nearly regular intervals, and possibly indicate a design of splitting it in two. Such is the idea formed by Mr. F. C. Lukis in a somewhat parallel case, though any indication of artificial formation in such primitive structures is of the very rarest occurrence. Mr. Lukis remarks in a communication to the Archæological Association:--"I send a sketch of the cromlech on L'Ancresse Common, Guernsey, on which we have discovered a string of indentations, probably made with a view to trim the side prop to the required size of the capstone. These are the first appearances of art in any of the primeval monuments, and nowhere have we found anything of the kind excepting on a menhir in the parish of the Forest.... The use of these indents we can only guess at; but as they follow the fracture of the stone, (granite,) the early method of breaking stones would be explained."[81] The Bonnington Mains Cromlech is of large size. The capstone, which now rests on only two of its supporters, measures 11½ feet in length, and 10½ feet in greatest breadth. It bears the name of THE WITCH'S STONE,[82] in accordance with the rustic legend which ascribes its origin to an emissary of the famed old Scottish wizard, Michael Scot. The term cromlech is probably derived from _cromadh_ (Gaelic) or _cromen_ (Welsh), signifying a _roof_ or _vault_, and _clach_ or _lech_, a stone. But the compound word is of ancient use in Scotland. An extensive district in the neighbourhood of Dunblane, Perthshire, which still bears the name of the Cromlix, is remarkable for various large transported blocks scattered over its surface. One of these, which has been supposed to have formed the capstone of a large cromlech, measures 15½ by 10 feet; but it is very doubtful if it owes either its form or position to human hands. According to the proposed derivation the name may be rendered _the suspended stone_;