_Clondalkin._--In the village of Clondalkin, at a distance of about six miles from Dublin by road, stands one of the best preserved of the round towers. Its height to the top of the cone is 90 feet. The doorway, which is approached by a flight of stone steps, comparatively modern, is square-headed, with inclined sides, and perfectly plain, as are also the windows and top apertures. Some years ago a gentleman of the neighbourhood caused this tower to be repaired, upon which occasion floors were added, and placed in their original position. Access may be had from storey to storey by the aid of fixed ladders, so that a visitor has here an opportunity for observation not frequently to be met with. It should be remarked that the projection at the base, about 13 feet high, and which is nearly all solid masonry, is not found in any other round tower in Ireland, and it may possibly be an afterwork. The tower of Clondalkin, though nearly perfect, cannot be considered a very fine example of its class. It is built of rubble masonry, is somewhat low, and its roof, which does not appear to be original, is wanting in that degree of lightness and elegance observable in many. The other towers in the immediate neighbourhood of Dublin are at Swords, Lusk, and Rathmichael. That of Swords has been disfigured by the restoration of the top, and the ivy which threatened its destruction has been removed. That of Lusk has been incorporated into the west end of the parish church, and the tower at Rathmichael is a mere stump. [Illustration: Doorway of Clondalkin Tower.] * * * * *