51. IOR/V/27/731/18 Reference (shelfmark): IOR/V/27/731/18 Title: Bihar. Board of Revenue, A manual of laws relating to embankments, watercourses and irrigation works with the rules, orders, etc, under them. Patna, 1944 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1944 Extent: 1 volume
52. IOR/V/27/731/13 Reference (shelfmark): IOR/V/27/731/13 Title: Bengal. Public Works Department, A manual for the guidance of the staff of the revenue division of the Sone Canals. 2nd edition. 1907 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1907 Extent: 1 volume