National Geographic : 1925 Aug
158 THE NATIONAL GEOGRAPHIC MAGAZINE Photograph by Gordon Casserly A TRIPOLITANIAN CAMEL MARKET Until the Italians occupied Tripolitania, railroads were practically non-existent in this part of North Africa, communication being almost entirely by camel caravan. Most of the country can still be reached in this way only. A WANDERING SAND HILL IN THE LIBYAN DESERT The border between Tripolitania and Tunisia is very uncertain south of Ghadames. It has been the subject of consideration for various international commissions, but great moving sand hills, which completely change the contour of the desert from time to time, make it difficult to maintain a fixed boundary.