Übersichtskarte des Nordosthorns Afrikas nebst Darstellung der VII zoogeographischen Gebiete
1870|Erlanger, Carlo von1:4 000 000
Travels, researches and missionary labours, during an eighteen years' residence in Eastern Africa ... With an appendix respecting the snow-capped mountains of Eastern Africa, ... and a concise account of geographical researches in Eastern Africa up to the discovery of the Uyenyesi by Livingstone in September last, by E. G. Ravenstein. With portrait, maps and illustrations, etc
1860|Krapf, J. L. (Johann Ludwig)
Map of Arabia
1865|Macmillan & Co.1:6 000 000
Arabien
1867|Kiepert, Heinrich1:6 000 000
Personal Narrative of a Year's Journey through Central and Eastern Arabia ... New edition, etc. [With a portrait, a map and plans.]
1868|PALGRAVE, William Gifford.
Arabia und das Nil-land
1835|den Manen Karsten Niebuhr's und den hochverdienten Forschern L.G. Ehrenberg u. E. Rüppell zugeeignet vom Verfasser [Heinrich Karl Wilhelm Berghaus]1:400 000