A kurgan, or tumulus, leaving been opened in the Kherson district, three or four concentric circles were discovered beneath it, surrounding a structure of considerable size.6 The cromlech of Anajapoura in Ceylon, probably, however, erected comparatively recently, consists of fifty-two granite pillars, about thirteen feet high, encircling a Buddhist temple. At Peshawur is another circle, fourteen of the stones of which are still upright, whilst traces can be made out of an outer enceinte of smaller stones; in Peru there are several cromlechs, whilst others have been found at the foot of Elephant Mount, in the desert plains of Australia. The last-named vary from ten to one thousand feet in diameter, but excavations beneath them have brought to light only a few human bones. At Mzora, in Morocco, the traveller will notice a mound of elliptical shape, some 21 or 22½ feet high, flanked on the west by a group of menhirs, and surrounded by an enceinte of upright stones which now number about forty. In 1831, there were still ninety, and on the south side were noticed two round pillars parallel with each other, which probably formed an entrance.7 This group evidently originally formed the centre of a series of megalithic monuments, for on the north and southwest some fifty monoliths can still be made out, some still erect, others fallen.8 It was in Great Britain, however, that cromlechs appear to have reached their highest development. That of Salkeld in Cumberland includes sixty-seven menhirs; that near Loch Stemster in Caithness, thirty-three, whilst in Westmoreland, _Long Meg and her daughters_ are still the objects of superstitious reverence. The remains at Avebury are among the most remarkable prehistoric monuments still extant, and evidently originally formed part of a most important group. This group had an outer rampart of earth, with a ditch on the inner side, within which was a circle of upright stones, probably numbering as many as one hundred. Within this circle were two others of smaller size, each in its turn enclosing yet another circle of upright stones. In the middle of one of these inner circles, that on the north, was a dolmen, whilst that on the south enclosed in the centre but a single upright menhir. The stones used in constructing these various groups were all such as are still to be found on the Wiltshire downs. From the southeastern portion of the extensive earthen rampart, a stone avenue extended for a considerable distance in a perfectly straight line, and is still known as Kennet’s Avenue, on account of its leading to the village of Kennet. The remains on Hakpen Hill and on Silbury Hill are all supposed to have been originally connected with those at Avebury. The remains at Hakpen consist of relics of two circles, one about 140 feet in diameter, the other not more than forty. About eighty yards from the inner circle was found a double row of skeletons, all with the feet pointing towards the centre.