1. IOR/V/19/16
- Reference (shelfmark):
- IOR/V/19/16
- Title:
- Account of the Operations of the Great Trigonometrical Survey of India, Vol 15, Electro-telegraphic operations executed during the years 1885-86, 1887-88, 1889-90 and 1891-92 and the revised results of arcs contained in Vols 9 and 10; also the simultaneous reduction and the final results of the whole of the operations. G. Strahan. Dehra Dun, 1893
- Collection Area:
- India Office Records and Private Papers
- Languages:
- English
- Date Range:
- 1893
- Extent:
- 1 volume