Looking backward into Attica, the whole mountainous tract of Œnoe is visible; and, though we cannot now tell the points actually selected, there is no difficulty in finding several which could easily pass the signal from Eleutheræ to Daphne, and thence to Athens. We know that fire signals were commonly used among the Greeks, and we can here see an instance where news could be telegraphed some thirty miles over a very difficult country in a few moments. Meanwhile, as succors might be some time in arriving, the fort was of such size and strength as to hold a large garrison, and stop any army which could not afford to mask it, by leaving there a considerable force.(92) The site was, of course, an old one, and the name Eleutheræ, if correctly applied to this fort, points to a time when some mountain tribe maintained its independence here against the governments on either side in the plain, whence the place was called the “_Free_” place, or _Liberties_ (as we have the term in Dublin). There is further evidence of this in a small irregular fort which was erected almost in the centre of the larger and later enclosure. This older fort is of polygonal masonry, very inferior to the other, and has fallen into ruins, while the later walls and towers are in many places perfect. The outer wall follows the nature of the position, the principle being to find everywhere an abrupt descent from the fortification, so that an assault must be very difficult. On the north side, where the rock is precipitous, the wall runs along in a right line; whereas on the south side, over the modern road, it dips down the hill, and makes a semicircular sweep, so as to crown the steepest part of a gentler ascent. Thus the whole enclosure is of a half-moon shape. But while the straight wall is almost intact, the curved side has in many places fallen to pieces. The building is the most perfect I have ever seen of the kind, made of square hewn stones, evidently quarried on the rock itself. The preserved wall is about 200 yards long, six and a half feet wide, and apparently not more than ten or twelve feet high; but, at intervals of twenty-five or thirty yards, there are seven towers twice as deep as the wall, while the path along the battlement goes right through them. Each tower has a doorway on the outside of it, and close beside this there is also a doorway in the wall, somewhat larger. These doorways, made by a huge lintel, about seven and a half feet long, laid over an aperture in the building, with its edges very smoothly and carefully cut, are for the most part absolutely perfect. As I could see no sign of doorposts or bolts—a feature still noticeable in all temple gates—it is evident that wooden doors and door-posts were fitted into these doorways—a dangerous form of defence, were not the entrances strongly protected by the towers close beside them and over them. There were staircases, leading from the top of the wall outward, beside some of the towers. The whole fort is of