There is a quadrangular hole, 1 ft. 3 in. long and 1 ft. broad, in the middle of the threshold, where the two doors of the gate met. The threshold further shows on its east side a straight furrow, artistically cut, 1 ft. broad, and on its west side another which forms a curve. Both these seem to have served as channels for rain water, the rush of which must have been great, the threshold being lower than the natural rock forming the floor of the passage, which rises gradually. In the side of the threshold which faces the north is a long artificial hole of a peculiar form, which must have been connected with the gate in some way or other, for a cutting of exactly the same form exists in the large flat stone in the middle of the gate at Troy. At a distance of 11½ ft. from the threshold on either side of the passage there is, as at Troy,[231] a quadrangular mass of Cyclopean masonry, 2 ft. broad and high, and 3 ft. long, which marks the site of a second gate of wood. [Sidenote: A CYCLOPEAN HOUSE.] Further on to the right I have brought to light, below the foundations of an Hellenic house, quite a labyrinth of Cyclopean house-walls, forming a number of parallel corridors from 4 ft. to 6½ ft. broad, filled with stones and _débris_, which I am now clearing out. One of the corridors leads straight into the Cyclopean house already described.[232] In several places the walls retain traces of their clay-coating. I found here many Hera-idols, also three arrow-heads, all of bronze; two have barbs (γλωχῖνες); the third has the form of a pyramid, like the Carthaginian arrows which I found last year in my excavations in Motyë in Sicily. To the left of the entrance is, first, the small chamber of the door-keeper, and then follows a wall of huge stones, intended merely to sustain the masses of _débris_ (24 ft. to 26 ft. high) which have been washed down from the mount in the course of ages. Further on, in the same line, is a Cyclopean wall (166 ft. long and 30 ft. high) of enormous stones joined together with small ones, which, as already mentioned, is crowned by the ruins of a tower, and gives the Acropolis a peculiarly grand aspect.[233] This wall was imbedded from 10 ft. to 12 ft. deep in the _débris_, and has now been brought to light down to the rock on which it is founded. My supposition that the double parallel row of large slabs would be found to form a complete circle has been proved correct. One-half of it rests on the wall which was intended to support it in the lower part of the Acropolis, the other half is founded on the higher flat rock, and touches the foot of the Cyclopean wall before mentioned; the entrance to it is from the north side.[234]