Relief shown by spot heights, hachures, and coloration. Areas of granitic rock and sandstone are shown. Extent of Nafud desert is shown. Includes information on quality and composition of terrain. Wadis and wells are shown. From: Proceedings of the Royal Geographical Society and monthly record of geography. Vol. 2 (1880), no. 2, pp. 81-102; held in Firestone Library. Call number: G7 .J6873