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Letter from Henry Croaker to the Board of Longitude, 1818-01-10

Reference Code: GBR/0180/RGO 14/39: 75-79

Scope and Contents

Outlining his proposal for finding longitude. Includes a dial table, tables of longitude (for January to December 1818) and a drawing of 'a sun-dial on the perpetual motion'.


  • Creation: 1818-01-10


Conditions Governing Access

From the Management Group:

Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (


5 folio(s) (5 ff.) : Paper

Language of Materials


Original geographic information

Canterbury [origination]

Original geographic information

London [destination]

Finding aid date

2012-04-30 15:21:10+00:00


Repository Details

Part of the Cambridge University Library Repository

Cambridge University Library
West Road
Cambridge CB3 9DR United Kingdom