_Rocking-stones._--In a field situated not far from the ‘Eglone’ (see page 12) occurs a huge mass of the same lithic character. It is known as the Rocking-stone, and, although some tons in weight, may be swayed some eighteen inches on either side by very slight exertion of the hand. These so-called ‘Rocking-stones’ are to be met with in various parts of Ireland and Great Britain. Up to a comparatively recent period they had been supposed to have been associated in some way with the celebration of druidical rites or mysteries. That idea is no longer held, except, indeed, by some old-fashioned or superstitious people. Upon the borders of Fermanagh and Cavan, about three miles along the mountain road from the village of Black Lion, in the direction of the Shannon Pot, may be seen a very characteristic example of the kind of remains under notice. It consists of an immense block of stone, six feet high, somewhat globular in shape, and weighing several tons. The stone rests upon a rock, and is so poised that a moderate pressure of the fingers will suffice to move it. From the position of the mass it would seem to be artificial. It may be that the stone was originally placed where it at present stands in memory of some now long forgotten hero or event, and, owing to an accidental peculiarity, existing either in its own configuration or in that of the supporting rock, was so imposed that it may be thus shaken a few inches backwards and forwards. On the slope of a hill, on the old battle-field of Northern Moytura, is a fine boulder, which we failed to stir, and we were informed by our guide that sometimes the stone rocked, and sometimes it was immovable. The cause of the latter state may probably be due to the clay which is washed down the slope, and rests in the socket on which the rock is balanced. Not far from this, and near the village of Highwood, is another rocking-stone which can easily be moved. On the shore of Brown’s Bay, north of Island Magee, is a larger rocking-stone, weighing about 10 tons, which was once believed to tremble at the approach of a criminal. Rocking-stones are simply erratic blocks dropped into their present positions in the decline of the Ice Age. A similar phenomenon may be witnessed in the ‘tables’ of a glacier, where the pedestal of ice under the shadow of the rock perched upon it, melts less rapidly than the surrounding surface. Rocking-stones were no doubt looked upon with superstitious awe by the worshippers of stocks and stones, during the dark ages preceding the introduction of Christianity in these islands. * * * * *