1. IOR/F/4/816/21748 Reference (shelfmark): IOR/F/4/816/21748 Title: Scope & Content: Letter from the Company's Astronomer at Bombay, John Curnin, to the Court of Directors, regarding two methods of obtaining the latitude of a ship at sea, (with associated correspondence). Collection Area: India Office Records and Private Papers Languages: English Date Range: May-Nov 1824 Extent: 1 file