121. IOR/X/12156
- Reference (shelfmark):
- IOR/X/12156
- Title:
- 'Triangulation in India and Adjacent Countries' published by order of the Surveyor General of India
- Scope & Content:
- Survey of India Triangulation in India and Adjacent Countries (IAC) pamphlets. Coverage extends between the Middle East and South East Asia. Each pamphlet contains a list of triangulation points with descriptions of their form and location, and includes at least one map: 'Chart of Triangulation' ...
- Collection Area:
- Map Collections
- Languages:
- English
- Date Range:
- 1914-1944
- Extent:
- 658 pamphlets (each 148 or fewer pages), and 1 sheet