1. IOR/F/4/1937/83799 Reference (shelfmark): IOR/F/4/1937/83799 Title: Scope & Content: Lieutenant John Ouchterlony of the Madras Engineers is allowed the services of a small detachment of Madras Sappers and Miners to assist him in his researches into the copper deposits of Nellore, Cuddapah and Guntur Districts Collection Area: India Office Records and Private Papers Languages: English Date Range: Oct 1839-Sep 1840 Extent: 1 file