1. IOR/L/E/6/25, File 368 Reference (shelfmark): IOR/L/E/6/25, File 368 Title: File R 368/1881 - Correspondence relating to a method of extracting quinine from cinchona bark Collection Area: India Office Records and Private Papers Languages: English and French Date Range: Apr 1881-Jun 1881 Extent: 1 file