31. IOR/R/20/B/3561 Reference (shelfmark): IOR/R/20/B/3561 Title: Aide memoire on the economy of the Yemen and trade with Aden Collection Area: India Office Records and Private Papers Languages: English Date Range: Jun 1950 Extent: 1 file
32. IOR/R/20/B/3562 Reference (shelfmark): IOR/R/20/B/3562 Title: Anglo-Yemeni Conference: record of daily proceedings Collection Area: India Office Records and Private Papers Languages: English Date Range: Aug 1950-Oct 1950 Extent: 1 file
33. IOR/R/20/B/3563 Reference (shelfmark): IOR/R/20/B/3563 Title: Memorandum on the Anglo-Yemeni frontier [2 copies] and related papers Collection Area: India Office Records and Private Papers Languages: English Date Range: 1956? Extent: 1 file
34. IOR/R/20/B/3564 Reference (shelfmark): IOR/R/20/B/3564 Title: File I Oil exploration in the Aden Protectorate [T & C (Trade and Commerce)/3/2/3] Collection Area: India Office Records and Private Papers Languages: English Date Range: Aug 1945-Jan 1953 Extent: 1 file
35. IOR/R/20/B/3565 Reference (shelfmark): IOR/R/20/B/3565 Title: File II Oil exploration in the Aden Protectorate [T & C (Trade and Commerce)/3/2/3] Collection Area: India Office Records and Private Papers Languages: English Date Range: Jan 1953-May 1954 Extent: 1 file
36. IOR/R/20/B/3566 Reference (shelfmark): IOR/R/20/B/3566 Title: Report on the geological reconnaissance in northern Hadhramaut, 1953-54 Z.R. Beydoun & E.M. Melvill, PCL Geological Dept [with photographs & maps] Collection Area: India Office Records and Private Papers Languages: English Date Range: Nov 1954 Extent: 1 file
37. IOR/R/20/B/3567 Reference (shelfmark): IOR/R/20/B/3567 Title: Geological observations in northern Hadhramaut, 1954-1955 Z. R. Beydoun & E.K. Elliot, PCL Geological Dept [with maps & photographs] Collection Area: India Office Records and Private Papers Languages: English Date Range: 1955 Extent: 1 file
38. IOR/R/20/B/3568 Reference (shelfmark): IOR/R/20/B/3568 Title: File 1955-56 Geophysical surveys in northern Hadhramaut G.C. Colley, PCL Geophysical Dept Collection Area: India Office Records and Private Papers Languages: English Date Range: Oct 1956 Extent: 1 file
39. IOR/R/20/B/3569 Reference (shelfmark): IOR/R/20/B/3569 Title: File 1956-57 Geophysical surveys in northern Hadhramaut G.C. Colley, PCL Geophysical Dept Collection Area: India Office Records and Private Papers Languages: English Date Range: Dec 1957 Extent: 1 file
40. IOR/R/20/B/3570 Reference (shelfmark): IOR/R/20/B/3570 Title: File 1957-58 Geophysical surveys in northern Hadhramaut G.C. Colley, PCL Geophysical Dept Collection Area: India Office Records and Private Papers Languages: English Date Range: Jan 1959 Extent: 1 file