1. IOR/V/19/46
- Reference (shelfmark):
- IOR/V/19/46
- Title:
- Synopsis of the Results of the Operations of the Great Trigonometrical Survey of India, Vol 22, Preliminary issue. Descriptions and co-ordinates of the secondary stations and other fixed points of the Assam Valley Triangulation, E of meridian 92°, emanating from the Assam Longtitudinal Series or Series X of the North-East Quadrilateral. Dehra Dun, 1891
- Collection Area:
- India Office Records and Private Papers
- Languages:
- English
- Date Range:
- 1891
- Extent:
- 1 volume