Work in Tripolitania

graphed important features on the way and did section drawings. Wadi El Meleca was likewise examined but we were unable to add anything to the original conclusion that this was a probable but not proven secondary source of water. Wadi Rumman also remains a possibility but, owing to the savage erosion of the wadi sides, no definite answer was forthcoming. Special attention was paid to Wadi Somaa—about four kilometres east of Ptolemais—where the most extensive bridge remains are to be found. Here we drew a plan and an elevation of the visible remains on the east side of the wadi. Finally, we examined the aqueduct's course in Wadi Ziwana and were able to find traces of possible Byzantine restoration. A plan was drawn of the aqueduct's course from Wadi Habbun to Ptolemais, though as we were not able to take proper surveying equipment this had to be based on a wartime map of the coastline. The aqueduct was also extensively photographed and a number of sections drawn. This is by no means the last word on the Ptolemais aqueduct but its source, extent and present condition are now recorded with sufficient accuracy to make certain conclusions possible and to provide the basis of further more detailed work.