31. IOR/L/PS/9/31 Reference (shelfmark): IOR/L/PS/9/31 Title: Secret Letters Received from areas outside India, Vol 31 Aden Collection Area: India Office Records and Private Papers Languages: English Date Range: 1850-1851 Extent: 1 volume
32. IOR/L/PS/9/32 Reference (shelfmark): IOR/L/PS/9/32 Title: Secret Letters Received from areas outside India, Vol 32 Aden Collection Area: India Office Records and Private Papers Languages: English Date Range: 1852-1853 Extent: 1 volume
33. IOR/L/PS/9/33 Reference (shelfmark): IOR/L/PS/9/33 Title: Secret Letters Received from areas outside India, Vol 33 Aden Collection Area: India Office Records and Private Papers Languages: English Date Range: 1854 Extent: 1 volume
34. IOR/L/PS/9/34 Reference (shelfmark): IOR/L/PS/9/34 Title: Secret Letters Received from areas outside India, Vol 34 Aden Collection Area: India Office Records and Private Papers Languages: English Date Range: 1855 Extent: 1 volume
35. IOR/L/PS/9/35 Reference (shelfmark): IOR/L/PS/9/35 Title: Secret Letters Received from areas outside India, Vol 35 Aden Collection Area: India Office Records and Private Papers Languages: English Date Range: 1856-1857 Extent: 1 volume
36. IOR/L/PS/9/36 Reference (shelfmark): IOR/L/PS/9/36 Title: Secret Letters Received from areas outside India, Vol 36 Aden Collection Area: India Office Records and Private Papers Languages: English Date Range: 1858 Extent: 1 volume
37. IOR/L/PS/9/37 Reference (shelfmark): IOR/L/PS/9/37 Title: Secret Letters Received from areas outside India, Vol 37 Aden and Zanzibar with Enclosures Collection Area: India Office Records and Private Papers Languages: English Date Range: 1859-1860 Extent: 1 volume
38. IOR/L/PS/9/38 Reference (shelfmark): IOR/L/PS/9/38 Title: Secret Letters Received from areas outside India, Vol 38 Zanzibar Collection Area: India Office Records and Private Papers Languages: English Date Range: 1861-1862 Extent: 1 volume
39. IOR/L/PS/9/39 Reference (shelfmark): IOR/L/PS/9/39 Title: Secret Letters Received from areas outside India, Vol 39 Aden Collection Area: India Office Records and Private Papers Languages: English Date Range: 1861-1862 Extent: 1 volume
40. IOR/L/PS/9/40 Reference (shelfmark): IOR/L/PS/9/40 Title: Secret Letters Received from areas outside India, Vol 40 Aden, Muscat, Zanzibar, and Straits Settlements Collection Area: India Office Records and Private Papers Languages: English Date Range: 1863 Extent: 1 volume