1. IOR/L/E/6/53, File 27 Reference (shelfmark): IOR/L/E/6/53, File 27 Title: File S&C 27/1881 - Correspondence regarding the employment on pendulum work of Major Herschel, Deputy Superintendent, Survey of India Collection Area: India Office Records and Private Papers Languages: English Date Range: Dec 1880-Feb 1881 Extent: 1 file