Catalogue description Ordnance Survey: Trigonometrical and Levelling Divisions: Magnetic Surveys

Search within or browse this series to find specific records of interest.

Date range

Details of OS 6
Reference: OS 6
Title: Ordnance Survey: Trigonometrical and Levelling Divisions: Magnetic Surveys
Description:

This series contains records of magnetic surveys undertaken by G W Walker and H L P Jolly. The records consist of three types of books:

  • Descriptions of stations, containing locating details for the magnetic survey stations.
  • Computation books, containing computations to find the geographical co-ordinates and azimuths for the magnetic survey stations.
  • Calculation books, containing calculations to obtain the magnetic variations of specific points in Great Britain.
Date: 1914-1933
Held by: The National Archives, Kew
Legal status: Public Record(s)
Language: English
Physical description: 12 volume(s)

Have you found an error with this catalogue description?

Help with your research

How to look for...