MITCHELSTOWN, a neat little town, 21 m. N.E. of Cork.--See the magnificent seat of Lord Kingston, and the College, a liberal charity. See in the vicinity, at Brigowne, 1 m., ruins of Ch. and round tower: 1-1/2 m., ruins of Caherdriny Castle; 2 m., ruins of Carriganoura Castle. Castle Hyde near to Mitchelstown deserves a visit. The grounds are extensive, and the house is curiously seated at the base of a lofty rock. The park contains much diversified scenery, and is traversed by the romantic Blackwater. See the marble quarries, esteemed as handsome as any in Ireland; of a dark gray colour with various shades, and a rich display of shells. At Skehewrinky, see the cave in a limestone hill of dangerous descent, but beautifully encrusted with spar and resembling a vaulted cathedral. MIDDLETON, half way between Cork and Youghall, at the N.E. corner of Cork harbour. See some ancient ruins of a Castle and Abbey; the Market-house; public Freeschool, an elegant building; some remains of Danish works and a large rath at Ballinachora. Several of the curiosities are noticed under CLOYNE. MILL STREET, 20 m. N.W. is a small village, with some appearance of the linen manufacture. The roads are bad; but it has near it a continued range of mountains that deserve investigation, particularly two amongst them called the Papps, from their singular resemblance to the human breast, and having two little protuberances on the very summit of each, which enforce the resemblance more strongly: these Sir R. C. Hoare suspects to be carnedds or Tumuli. Near it see ruins of Clodagh Castle, feudal seat of the Mac Swinneys, once distinguished for its hospitality by an inscription inviting all strangers to enter; at Clondrohid, ancient Ch. and Danish encampments; and 1 m. W., on Lessecresighill, vestiges of a Druidical altar. At Kilnamartery, curious white rocks, at a distance resembling the ruins of a magnificent city. RATHCORMUCK, 12 m. N.E. of Cork, a decent town, with Ch. and neat Market-house. See to the N. Cairn Tierna, a range of mountains with an ancient cairn, forming a conspicuous object. Glanmire is described by Miss Plumptre as a village in a beautiful and romantic situation:--trace the rivulet through the deep and picturesque glen. Glanworth has spacious ruins of an ancient Castle, and some remains of a Dominican Abbey, with good river scenery. 1 m. distant is a most curious sepulchral monument called Labacally or the Hag's Bed, said by tradition to have belonged to a giantess of whom many ridiculous fables are related. Its real history and antiquity are unknown: it consists of several broad flag-stones supported by others, and most of them of an enormous size, one no less than 17 feet long and 9 broad. The whole length of this vast tomb, which is hollow underneath, is 40 feet; in breadth 14; and the whole seems to have been inclosed in a circle of flag-stones about 14 feet from the outside.