Information regarding the Colonial Geological Survey Service, the Colonial Mines Service and meteorogical appointments Colonial Office: Colonial Service Recruitment No 7 (4th edn), Mar 1938
Colony of Aden. Local transport and travelling regulations. Secretary of State's despatch no 141 of 9 May 1940 Aden: C & D Bros Press with typ and ms additions and corrections
Colony and Protectorate of Aden. Leave and passage regulations Secretary of State's despatch no 372 of 2 Dec 1936. Corrected up to 1 Apr 1947 Aden: C & D Bros Press