191. IOR/V/27/735 Reference (shelfmark): IOR/V/27/735 Title: Waterways and Irrigation: Wells Collection Area: India Office Records and Private Papers Languages: English Date Range: 1883-1931 Extent: 7 volumes
192. IOR/V/27/740 Reference (shelfmark): IOR/V/27/740 Title: Electricity Collection Area: India Office Records and Private Papers Languages: English Date Range: 1901-1948 Extent: 57 volumes
193. IOR/V/27/750 Reference (shelfmark): IOR/V/27/750 Title: Marine Collection Area: India Office Records and Private Papers Languages: English Date Range: 1796-1956 Extent: 29 volumes
194. IOR/V/27/751 Reference (shelfmark): IOR/V/27/751 Title: Marine: Manuals Collection Area: India Office Records and Private Papers Languages: English Date Range: 1877-1958 Extent: 172 volumes
195. IOR/V/27/752 Reference (shelfmark): IOR/V/27/752 Title: Marine: Lighthouses Collection Area: India Office Records and Private Papers Languages: English Date Range: 1895-1927 Extent: 7 volumes
196. IOR/V/27/760 Reference (shelfmark): IOR/V/27/760 Title: Telegraph and Posts Collection Area: India Office Records and Private Papers Languages: English Date Range: 1867-1951 Extent: 36 volumes
197. IOR/V/27/761 Reference (shelfmark): IOR/V/27/761 Title: Telegraph and Posts: Manuals Collection Area: India Office Records and Private Papers Languages: English Date Range: 1878-1950 Extent: 96 volumes
198. IOR/V/27/762 Reference (shelfmark): IOR/V/27/762 Title: Telegraphs and Posts: Projects and Construction Collection Area: India Office Records and Private Papers Languages: English Date Range: 1864-1920 Extent: 7 volumes
199. IOR/V/27/763 Reference (shelfmark): IOR/V/27/763 Title: Telegraph and Posts: Finance Collection Area: India Office Records and Private Papers Languages: English Date Range: 1865-1913 Extent: 7 volumes
200. IOR/V/27/770 Reference (shelfmark): IOR/V/27/770 Title: Aviation Collection Area: India Office Records and Private Papers Languages: English Date Range: 1926-1955 Extent: 22 volumes