366 BENGAZI.

A window has been formed in part of the wall for the purpose of giving light to an upper story, which, together with the window itself, appears to have made no part of the original plan; an addition has also been made to the exterior, (marked by shading hnes in the ground-plan,) and forming, with what has been already described, a square of something less than fifty feet. There is no appear£ince of any door in this additional wall, which has been very strongly built, and it completely prevents aU access from without to the door of the original building. The object of this has no doubt been security, and the whole structure appears to have been intended as a station for troops and was probably one of the fortresses repaired by Justinian. Its height may be about five-and-twenty feet, (we mean the height of the original building, for the added part does not seem to have been ever raised to half that elevation), and it IS still surmounted by a cornice part of which is, however, cut away.

There are several other strong towers at no great distance from Gusser el Toweel, nearer to the foot of the mountains, and a communication appears to have been kept up all the way from Bengazi to Ptolemeta. There are also several well-built and spacious arched cisterns, and other structures partly built and partly excavated, in this tract of country ; as also many subterranean storehouses for gram ; and a month or two might certainly be spent with great advantage m examining the space between the sea and the mountains, from Bengazi to Birsis and Teuchira.