1. IOR/L/PS/20/MEMO39-43 Reference (shelfmark): IOR/L/PS/20/MEMO39-43 Title: Political and Secret Department Library: Memoranda: Seistan, Persia, Persian Gulf, Red Sea and Somali Coast Collection Area: India Office Records and Private Papers Languages: English Date Range: Unspecified Extent: 5 volumes (49 items)
2. IOR/L/PS/20/MEMO31-38 Reference (shelfmark): IOR/L/PS/20/MEMO31-38 Title: Political and Secret Department Library: Miscellaneous Memoranda Scope & Content: Covers both internal and external subjects Collection Area: India Office Records and Private Papers Languages: English Date Range: 1856-1885 Extent: 8 volumes (196 files)
3. IOR/L/PS/20/MEMO21-24 Reference (shelfmark): IOR/L/PS/20/MEMO21-24 Title: Political and Secret Department Library: Memoranda: Central Asia Collection Area: India Office Records and Private Papers Languages: English Date Range: 1841-1885 Extent: 4 volumes (168 files)
4. IOR/L/PS/20/MEMO25-30 Reference (shelfmark): IOR/L/PS/20/MEMO25-30 Title: Political and Secret Department Library: Memoranda: Burma and the North East Frontier Collection Area: India Office Records and Private Papers Languages: English Date Range: 1871-1912 Extent: 6 volumes (41 files)
5. IOR/L/PS/20/MEMO4 Reference (shelfmark): IOR/L/PS/20/MEMO4 Title: Papers relating to Afghanistan Collection Area: India Office Records and Private Papers Languages: English Date Range: 1876-1878 Extent: 1 volume
6. IOR/L/PS/20/MEMO5 Reference (shelfmark): IOR/L/PS/20/MEMO5 Title: Papers relating to Afghanistan. Collection Area: India Office Records and Private Papers Languages: English Date Range: 1878-1880 Extent: 1 volume
7. IOR/L/PS/20/MEMO7 Reference (shelfmark): IOR/L/PS/20/MEMO7 Title: Papers relating to Afghanistan Collection Area: India Office Records and Private Papers Languages: English Date Range: 1878-1879 Extent: 1 volume
8. IOR/L/PS/20/MEMO8 Reference (shelfmark): IOR/L/PS/20/MEMO8 Title: Afghanistan Memoranda. A. W. Moore. Collection Area: India Office Records and Private Papers Languages: English Date Range: 1878-1880 Extent: 1 volume
9. IOR/L/PS/20/MEMO13 Reference (shelfmark): IOR/L/PS/20/MEMO13 Title: Afghan Boundary Commission telegrams Collection Area: India Office Records and Private Papers Languages: English Date Range: 1884-1886 Extent: 1 volume
10. IOR/L/PS/20/MEMO20 Reference (shelfmark): IOR/L/PS/20/MEMO20 Title: North West Frontier papers Collection Area: India Office Records and Private Papers Languages: English Date Range: 1897-1898 Extent: 1 volume