1. IOR/V/19/210 Reference (shelfmark): IOR/V/19/210 Title: Survey of India Professional Paper No. 3, Method of measuring geodetic bases by means of Colby's compensated bars. H.McC. Cowie. Dehra Dun, 1900 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1900 Extent: 1 volume