Munzinger's route, Col. Phayre's route of 1868, and route of the British expedition in 1868 are shown. Relief shown by hachures and spot heights. Asali salt plain and other plains of region are shown. Locations of wells along Munzinger's route are shown. From: Journal of the Royal Geographical Society of London. Vol. 39 (1869), pp. 188-232; held in Firestone Library. Call number: G7 .J687