1. '86/21 - II P.C.L. Exploration of Trucial Hinterland. B 51' Date: 1938/1938 Language: English Geographic region: BaraimiJebel HafitMuscatJebel Faiyah
2. '86/21 - III B.65. Trucial Hinterland Exploration' Date: 1939/1945 Language: English Geographic region: BaraimiJebel HafitMuscatJebel Faiyah
3. 'File 38/1 Vol I, P. C. L. Exploration' Date: 1945/1947 Language: English Geographic region: Jabal FaiyahBuraimiWadi Al GorTrucial Coast
