1. IOR/L/PWD/5/40 Reference (shelfmark): IOR/L/PWD/5/40 Title: Report on Septic Tanks in Bengal and the Purification of Sewage by Gilbert J Fowler, Consulting Chemist to the Manchester Corporation, Rivers Committee, &c. (London, 1907) Collection Area: India Office Records and Private Papers Languages: English Date Range: 1907 Extent: 1 unbound volume