_Labbacallee Cromlech._--This, according to Mr. Borlase, ‘the most noted dolmen of extended form in Ireland’ lies about one and a half miles south-east of Glanworth on the old road to Fermoy. It consists of a double range of stones, the internal lines forming the supports of the covering stones. The largest of the cap-stones measures 15½ feet by 9 feet, the second being partially buried in earth. The entire measurement is estimated by Mr. Borlase to have been not less than 42 feet. The line of direction is east and west; the width of the inner chamber is 6 feet, and it is now 5 feet high, and sinks towards the lower end.[29] * * * * * _Monasterboice Cromlech._--This fine monument lies about three-quarters of a mile to the north-east of the old graveyard of Monasterboice, and is known as ‘Calliagh Dirra’s House.’ It is called by the peasantry the ‘House or Tomb of Calliagh Vera, or Birra,’ a mythic witch, whose name is associated with several wild legends referring to the mysterious cairns and other antiquities remaining upon the hills of Loughcrew, near Oldcastle. The work has been considered by some to be of the free-standing order; but Du Noyer says it must have been covered by a tumulus: it is roughly oblong in form, extending exactly east and west, showing the wedge-shaped plan, and measuring, internally, 12 feet 6 inches in length, by 4 feet at one end, and 3 feet at the other, in breadth. The north and south walls consist each of five large flagstones; four flagstones form the covering, and each end is closed by a slab. The stones forming the walls stand on edge, and some of these have supplemental stones and buttresses. * * * * * _The Greenmount Chamber_ is about five miles further to the north, near Castlebellingham. Here, in 1870, General Lefroy opened an earthen mound, which was found to contain a chamber, the measurements of which were 21½ feet by 3 feet 4 inches, the height being 5 feet. The roof was formed of eight large flagstones. From the foundation to the top of the mound was 23 feet. Ashes, burnt bones, charcoal, and teeth of hogs and cattle were found. A bronze celt and plate, with runic character on one side, and elaborate interlaced pattern on the other, were found in the tumulus. * * * * *