ABBEY BOYLE, or BOYLE, 20 m. N. of Roscommon, pleasantly seated on the river Boyle. See two stone Bridges, on one of which is a pedestrian statue of William III.; fine Ch. and barrack. In Lord Kingston's demesne the attention of the antiquary will be turned to the ruins of the ancient Abbey, which stand within it at the back of the town, presenting a most elegant specimen of the architecture of the 13th century, when it was founded for Cistertian monks in honour of the Virgin. It is now a mere picturesque mass of ruin, filled with lofty trees and much thorny underwood. The approach from the bridge is very grand; especially the effect of the tower, covered with thick foliage, and springing from great arches which were 45 feet in height before the ravages of time had spread the floor with the relics of the mouldering walls. The interior has once been very fine; solid walls fill up the spaces between the pillars, supposed to have been erected in the reign of Elizabeth, when this dissolved monastery was turned into a fortified post, for which it was certainly well fitted, and actually stood a siege from the Earl of Tyrone in 1595. The east window, when in its glory, must have been extremely beautiful. Near to the Abbey are some vestiges of one of the round towers; and every thing around it would tend to produce a most impressive scene, were it not that the cloisters have been long occupied as a barrack: yet the silence and gloom of the interior, with the solemn arcades, and the emblems of mortality that lay scattered over its surface, will not fail to gratify the contemplative visitor. Cambo Castle is about 2 m. distant. About 7 m. from Boyle, and upon the edge of a very extensive bog, are the ruins of the Abbey of Clonshanville, now almost a total ruin. Of the cloisters no remnant exists; but the tower, 60 feet high, forms a pleasing object, with the few Gothic fragments at its base. Croghan is immortalized as the residence of Cathmor, the friend of strangers: here is an ancient Rath, also a sacred Cave of the Druids, and near to it Relig-na-Riagh, or the resting-place of the Kings of Connaught, an immense cemetery in a circle 200 feet diameter. Visit French Park. See Kingston Hall, an elegant mansion of Lord Lorton. Lough Arrow, 3 m. N. of Boyle, is beautifully studded with wooded islands: also Lough Gara to the W. Lough Glinn is also in this vicinity; on its banks stands a noble mansion of Viscount Dillon, with some extensive grounds, of modern erection and improvement; and on the opposite shore the tourist may visit two ruinous towers, which are all that remain of a once very extensive antique fortress, a feudal residence of the old barons of Ophaley. One of these towers has long been used as a temporary prison. ATHLONE, 12 m. S.E. of Roscommon, is principally in Westmeath, where it will be described.