(_f_) The walls of the ascents to the Acropolis as originally built would have precluded any outsider from seeing, even if standing on an adjoining kopje, the movements of people passing up and down the ascents; and to-day as a native ascends these passages it is almost impossible to see him till he reaches the summit, except as he is passing gaps or walls which have become considerably dilapidated. Some of the outer walls of these ascents are still 10 ft. in height. (_g_) The Elliptical Temple and the Western Temple on the Acropolis have each long and narrow and deep parallel passages on the inside of their main walls, and it is possible that the Pattern Passage served for a similar purpose at the Eastern Temple. The Parallel Passage in the Elliptical Temple communicated only between the North Entrance and the Sacred Enclosure where are the conical towers, and this passage has no communication with any other portion of the interior of the temple. Several of the known writers on these ruins, including Bent, have conjectured that these parallel passages in the temples were reserved for the use of the priests. (_h_) Cliffs and large boulders have been frequently utilised to form lengths of passages. Instances of this practice are to be seen on the Acropolis in the Rock Passage of the South-East Ancient Ascent, Buttress Passage, North Passage, and elsewhere. In some instances the walls are made to go out of their line so as to include neighbouring boulders, the sole object, so it would appear, being to deprive any invading force of the vantage offered by the height of the boulders for an attack to be made on the passage.