Ordnance Survey: Trigonometrical and Levelling Divisions: Magnetic Surveys

Reference:

OS 6

Title:

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

Language:

English

Physical description:

12 volume(s)

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