1. IOR/V/19/7
- Reference (shelfmark):
- IOR/V/19/7
- Title:
- Account of the Operations of the Great Trigonometrical Survey of India, Vol 6, The Principal Triangulation of the South-East Quadrilateral, including the Great Arc, section 18° to 24°, the East Coast series, the Calcutta and the Bider Longtitudinal series, the Jabalpur and the Bilaspur Meridional series, and the details of their simultaneous reduction. J.T. Walker. Dehra Dun, 1880
- Collection Area:
- India Office Records and Private Papers
- Languages:
- English
- Date Range:
- 1880
- Extent:
- 1 volume