1. IOR/L/PS/12/4268 Reference (shelfmark): IOR/L/PS/12/4268 Title: Coll 37/34 Bhutan and Tibet: botanical expeditions; Sherriff and Ludlow 1933, 1934; Sherriff, 1940 Collection Area: India Office Records and Private Papers Languages: English Date Range: 17 Oct 1932-22 Aug 1939 Extent: 1 file