While engaged on Desert Locust Survey work, Mr. Walford came across the rock-drawings reproduced here, at a place he calls Thor es Sellim lying near the junction of the Wadi Kutne (Philby, Kutne) and the Wadi Hurjab (Philby, Harjab) which is clearly al-Hamdānī's Hirjāb, in the district (long. 42°–43°; lat. 19°–20°). The Wadi Hirjab is a tributary of the Wādī . The-drawings were discovered by Mr. Walford on the under side of an overhanging rock projecting into the wādī-bed, but his work unfortunately rendered it impossible for him to take more particulars than those given here. A second group of figures was found on another rock at a short distance from, and to the right of the first. As he states in a letter, ‘there were many groups of lettering of the fairly common South Arabian type on other rocks in the area, and perhaps more drawings’.