58 pages (Complete with all three parts, as published, in 3 consecutive issues of the Royal Goegraphical Society). Plus many photographic plates and a large fold-out color map, measuring approximately 16 x 12 inches (41 x 30cm). Original condition with blue wrappers, titles to front, and containing all the ads. Three complete issues, seldom found in such good and original condition. This is one of the most comprehensive and valuable report on the Libyan Desert, in which the author attempts to elucidate some of the important questions and problems concerning depressions, oases, and water supplies, accompanied by many incredible photographic plates and a spectacular large fold-out colour map of the Libyan Desert showing surface-relief, contours of static underground water-levels, distribution of sand-dunes, as well as routes of principal exploratory expeditions in the west and south including those of Rohlfs in 1874&1879, Hodgson in 1901, Comyn in 1906, Harding King in 1911, Ball & Moore in 1917, Mrs. Forbes & Ahmed Hassanein in 1920, Ahmed Hassanein in 1923, Bruneau de Laborie in 1923, and Prince Kemal el Din in 1925&1926. The fascinating subjects discussed in this extensive report include: whether the Nile, or a branch of it, ever flow through the Libyan Desert to the west of the present Nile Valley; origin of the depressions; the possibility of utilization of depressions in the Libyan Desert for irrigation, drainage, or hydraulic power; the origin of the artesian water supplies of the Egyptian oases of Baharia, Kharga, Dakhla, and Farafra; permanence of lakes and salt-marshes occupying the depressions of Areg, Bahrein, Sittra, and Qattara; whether the present water-supplies of the Mediterranean littoral can be supplemented by artesian borings; the possibility of the artesian water supplies of the oases diminishing; mysterious "Zerzura, or Oasis of the Blacks"; the possibility of traveling in Great Tracts of the waterless Libyan Desert by the sinking of new wells; the "Tortoise Marshes" of Ptolemy; the sand-dunes; and the distribution of stone implements. Also with references to the Pottery Hill, found by Dr. Ball in 1917, and Prince Kemal el Din's expeditions in 1923 and 1925
