151. IOR/L/PS/20/13 Reference (shelfmark): IOR/L/PS/20/13 Title: Report on frontier operations in 1888-89 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1889 Extent: 1 volume
152. IOR/L/PS/20/FO46 Reference (shelfmark): IOR/L/PS/20/FO46 Title: Foreign Office Prints: Further correspondence respecting the Bagdad Railway Part III 1906 Collection Area: India Office Records and Private Papers Languages: English Date Range: May 1907 Extent: viii, 79pp
153. IOR/L/PS/20/FO88 Reference (shelfmark): IOR/L/PS/20/FO88 Title: Foreign Office Prints: Further correspondence respecting the affairs of Thibet Part XV 1912 Collection Area: India Office Records and Private Papers Languages: English Date Range: Sep 1916 Extent: xxxiii, 262pp 1 map
154. IOR/L/PS/20/MEMO1-20 Reference (shelfmark): IOR/L/PS/20/MEMO1-20 Title: Political and Secret Department Library: Memoranda: Afghanistan and the North West Frontier of India Collection Area: India Office Records and Private Papers Languages: English Date Range: 1809-1898 Extent: 20 volumes (215 files)
155. 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)
156. IOR/L/PS/20/D163/1 Reference (shelfmark): IOR/L/PS/20/D163/1 Title: Routes in Bhutan, 1925 Simla: General Staff India, 1926 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1926 Extent: iv, 101pp map (in pocket)
157. IOR/L/PS/20/D194 Reference (shelfmark): IOR/L/PS/20/D194 Title: Field notes Yun-nan. 1913 Calcutta: General Staff India, 1914 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1914 Extent: viii, 117pp maps (1 in pocket)
158. IOR/L/PS/20/D198 Reference (shelfmark): IOR/L/PS/20/D198 Title: The Chin Hills manual Rangoon: Govt of Burma, 1915 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1915 Extent: 3, 40pp
159. IOR/L/PS/20/E79 Reference (shelfmark): IOR/L/PS/20/E79 Title: Handbook of Asir Cairo: Arab Bureau, 1st edn, 1916 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1916 Extent: [iii], 169pp map
160. IOR/L/PS/20/E80 Reference (shelfmark): IOR/L/PS/20/E80 Title: Handbook of Yemen Cairo: Arab Bureau, 1st edn, 1917 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1917 Extent: vi, 167pp map