1. IOR/V/26/420 Reference (shelfmark): IOR/V/26/420 Title: Geography Collection Area: India Office Records and Private Papers Languages: English Date Range: 1914-1914 Extent: 1 volume
2. IOR/V/26/420/1 Reference (shelfmark): IOR/V/26/420/1 Title: Magnetic Survey (Walker) Committee 1914: Report. Dehra Dun, 1914 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1914 Extent: 1 volume