_The star-shaped Cairn of Doohat._--Doohat, the land upon which this monument is situated, will be found marked on the Ordnance Map just three and a half miles due south of Florencecourt. It is two miles from Bighy, on the opposite side of Bennaghlin mountain. The name of the site upon which it stands, Doohat--Irish, _Dumha Ait_, ‘Place of the sepulchral tumulus’--sufficiently explains that at one time its character had not passed out of local recollection. The plan of the work is, as far as we know, unique in Ireland, representing the star-fish, with five rays projecting from a central body or chamber of the usual ‘giant’s grave’ class. To the south of the chamber, and apparently forming a portion of the original design, occurs a semicircular ridge of stones. This feature is constructed in the same manner as the rays, and differs from them only in form and want of connection with any other portion of the cairn. To a fanciful mind the plan, on the whole, would most readily suggest the idea of a star and crescent. The rays are well-defined stony ridges, averaging 16 or 17 feet in breadth at their junction with the central cist, or dolmen, from which point they taper off to distances of 60, 46, 42, and 40 feet, respectively. They terminate very sharply with one, two, or three stones. The largest terminal stone--that which finishes the north-western ray--measures 3 feet 6 inches by 2 feet. The main chamber, which extends north and south, is divided by stone partitions into three compartments, of which the central one, measuring 8 feet by 4 feet internally, is the largest. From its north-west angle a rudely quadrangular offset, about 3 feet on the sides, projects westwards. This tomb differs in no respect from a number of ‘giants’ graves which are found in various parts of the country. No trace of covering slabs, if any such were ever used to overlap the chamber, can be discovered within or without the quadrangles; and it is not in the least likely that any considerable portion of the work has been removed. There is an over-abundance of stones, large and small, in the immediate neighbourhood ready at hand; and there are no buildings near which could have been furnished with materials from this source. This chamber was carefully excavated down to the ‘till,’ or undisturbed yellow clay, without finding any relics of the past beyond small pieces of wood charcoal, stones showing the action of fire, very dark-coloured, unctuous earth, and here and there some grayish matter, which may have been bone in the last stage of decomposition. Having carefully refilled all the pits necessarily made during the search, even replacing the rubbish which had fallen or been thrown into the chambers, the work was left in the same condition as that in which it had been found.