The oldest of all religious monuments of which we have any existing trace are cromlechs, found mostly in waste, uncultivated places. These are of various forms, but they are mostly tripods, consisting of a copestone poised upon three other stones, two at the head and one at the foot. The supports are rough boulders, the largest masses of stone that could be found or moved; and the copestone is an enormous flat square block, often with cup-shaped hollows carved upon its surface. Under this copestone there was a vacant space, varying in size from a foot or two to the height of a man on horseback. Through this vacant space persons used to pass; and the narrower the space, the more difficult the feat of crawling through, the more meritorious was the act. In our own country there are numerous relics of this primitive custom. In Cornwall there are two holed stones, one called Tolven, situated near St. Buryan, and the other called Men-an-tol, near Madron, which have been used within living memory for curing infirm children by passing them through the aperture. In the parish of Minchin Hampton, Gloucestershire, is a stone called Long Stone, seven or eight feet in height, having near the bottom of it a large perforation, through which, not many years since, children brought from a considerable distance were passed for the cure of measles and whooping-cough. On the west side of the Island of Tyree in Scotland is a rock with a crevice in it through which children were put when suffering from various infantile diseases. In connection with the ancient ruined church of St. Molaisse on the Island of Devenish in Loch Erne in Ireland, there is an artificially perforated stone, through which persons still pass, when the opening will admit, in order to be regenerated. If the hole be too small, they put the hand or the foot through it, and the effect is thus limited. Examples of such holed stones are to be found in some of the old churches of Ireland, such as Castledermot, County Kildare; Kilmalkedar, County Kerry; Kilbarry, near Tarmon Barry, on the Shannon. In Madras, diseased children are passed under the lintels of doorways; and in rural parts of England they used to be passed through a cleft ash tree. At Maryhill, in the neighbourhood of Glasgow, about a year ago, when an epidemic of measles and whooping-cough was prevalent, two mothers took advantage, for the carrying out of this superstition, of the presence in the village of an ass which drew the cart of a travelling rag-gatherer. They stood one on each side of the animal. One woman then took one of the children and passed it face downward through below the ass's belly to the other woman, who in turn handed it back with its face this time turned towards the sky. The process having been repeated three times, the child was taken away to the house, and then the second child was similarly treated. The mothers were thoroughly satisfied that their children were the better of the magic process.