The toponyms in block letters are transliterations from the South Arabian alphabets, which leave the vowels uncertain; the modern names as written with a hard jīm according to the local pronunciation. The roads are by no means certain, and¶ are largely inferred from circumstantial evidence. Note two source-maps: H. von Wissmann, Southern Arabia, 2 sheets, London, Roy. Geog. Soc. 1957/8; N. St. J. Groom, South-West Arabia, London, Roy. Geog. Soc.