a remarkable Caledonian post a few miles north of the town of Brechin in the county of Angus in Scotland. Mr Pennant describes it as of uncommon strength. "It is (says he) of an oval form, made of a stupendous dike of loose white stones, whose convexity, from the base within to that with- out, is 122 feet. On the outside a hollow, made by Catterthun, the disposition of the stones, surrounds the whole. Catti. Round the base is a deep ditch, and below that about 100 yards, are vestiges of another, that went round the hill. The area within the stony mound is flat: the axis, or length of the oval, is 436 feet, the trans- verse diameter 200. Near the east side is the foun- dation of a rectangular building; and on most parts are the foundations of others small and circular: all which had once their superstructures, the shelter of the possessors of the post: there is also a hollow, now al- most filled with stones, the well of the place." There is another fortification, but of inferior strength, in the neighbourhood. It is called the Brown Catterthun, from the colour of the ramparts, which are composed only of earth. It is of a circular form, and consists of various concentric dikes. On one side of this rises a small rill, which, running down the hill, has formed a deep gully. From the side of the fortress is another rampart, which extends parallel to the rill, and then re- verts, forming an additional post or retreat. The mean- ing of the word Catter-thun, is Camp-town; and Mr Pennant thinks these might probably be the posts occu- pied by the Caledonians before their engagement at the foot of the Grampian mountains with the celebra- ted Agricola. See (History of) SCOTLAND.