1. IOR/F/4/1913/81853 Reference (shelfmark): IOR/F/4/1913/81853 Title: Scope & Content: Government of India forward to London for transmission to the Royal Society registers of tidal observations made at Penang and Singapore during 1839/40 Collection Area: India Office Records and Private Papers Languages: English Date Range: Sep 1839-Nov 1840 Extent: 1 file