1. IOR/L/MIL/5/388, Coll 111 Reference (shelfmark): IOR/L/MIL/5/388, Coll 111 Title: Military Department Special Collections: Collection 111 Scope & Content: Copy Madras correspondence and proceedings on Lt-Col Thomas Fiott de Havilland's work on the drainage tunnel for Fort St George ditch and the Black Town sewers Collection Area: India Office Records and Private Papers Languages: English Date Range: 1822-1824 Extent: 1 file