31. IOR/L/PS/18/B157 Reference (shelfmark): IOR/L/PS/18/B157 Title: Tibet. C G Campbell, 5 Apr 1906 Collection Area: India Office Records and Private Papers Languages: English Date Range: 5 Apr 1906 Extent: 14pp
32. IOR/L/PS/18/B270 Reference (shelfmark): IOR/L/PS/18/B270 Title: Ibn Saud. War Office, 21 Jan 1918 Collection Area: India Office Records and Private Papers Languages: English Date Range: 21 Jan 1918 Extent: 3pp typ
33. IOR/L/PS/18/B355 Reference (shelfmark): IOR/L/PS/18/B355 Title: Bolshevik designs on India 19 Nov 1920 Collection Area: India Office Records and Private Papers Languages: English Date Range: 19 Nov 1920 Extent: [9]pp typ
34. IOR/L/PS/18/B448 Reference (shelfmark): IOR/L/PS/18/B448 Title: Recent events in Tibet. 27 Jun 1935 Collection Area: India Office Records and Private Papers Languages: English Date Range: 27 Jun 1935 Extent: 3pp
35. IOR/L/PS/18/A179 Reference (shelfmark): IOR/L/PS/18/A179 Title: Telegrams indicating Afghan-Bolshevik connection [21 Mar 1919-18 Jul 1919] Collection Area: India Office Records and Private Papers Languages: English Date Range: 21 Mar 1919-18 Jul 1919 Extent: 8pp
36. IOR/L/PS/18/B359 Reference (shelfmark): IOR/L/PS/18/B359 Title: The Assyro-Chaldeans (report received from Constantinople) Dec 1920 Collection Area: India Office Records and Private Papers Languages: English Date Range: Dec 1920 Extent: 3pp
37. IOR/L/PS/18/B53 Reference (shelfmark): IOR/L/PS/18/B53 Title: Burmah-China frontier. E Neel, 26 Nov 1891 Collection Area: India Office Records and Private Papers Languages: English Date Range: 26 Nov 1891 Extent: 12pp
38. IOR/L/PS/18/B74 Reference (shelfmark): IOR/L/PS/18/B74 Title: Somali Protectorate W Lee-Warner, 25 Nov 1896 Collection Area: India Office Records and Private Papers Languages: English Date Range: 25 Nov 1896 Extent: 10pp
39. IOR/L/PS/18/C142 Reference (shelfmark): IOR/L/PS/18/C142 Title: Revision of Anglo-Russian Convention of 1907 [1915] Collection Area: India Office Records and Private Papers Languages: English Date Range: 1915 Extent: 20pp
40. IOR/L/PS/18/A131 Reference (shelfmark): IOR/L/PS/18/A131 Title: Digest of North-West Frontier [Parliamentary] Papers 1898, Vol I Collection Area: India Office Records and Private Papers Languages: English Date Range: 1898 Extent: 14pp