Relief shown by hachures. Territories of Hejaz, Yemen, Hadramaut, Oman, Nejed, and Djebel-Shomer are shown. "The ortography of the author has been followed." From: Journal of the Royal Geographical Society of London. Vol. 34 (1864), pp. 111-54; held in Firestone Library. Call number: G7 .J687 v.34 1864. Lines of latitude and longitude every 2°30ʹ were hand drawn after map was published.