1. IOR/L/E/7/990, File 408 Reference (shelfmark): IOR/L/E/7/990, File 408 Title: File R&S 408/1920: Imperial Bureau of Mycology: Loan of Services of Dr. E. J. Butler, Imperial Mycologist and his appointment as Director of the Bureau. Collection Area: India Office Records and Private Papers Languages: English Date Range: Dec 1919-Jul 1923 Extent: 1 file