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Letter from Don Josef de Porras y Ruiz, 1783-08-18

 Item
Reference Code: GBR/0180/RGO 14/42: 12-28

Scope and Contents

From the File:

Correspondence regarding the effects of magnetic variation on the mariner's compass, the use of magnetic variation to establish longitude and the cause of magnetic variation.

Dates

  • Creation: 1783-08-18

Creator

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 mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).

Extent

18 folio(s) (18 ff.) : Paper

Language of Materials

Spanish; Castilian

Originator(s)

Porras y Ruiz, Josef

Original geographic information

London [destination]

Original geographic information

Madrid [origination]

Finding aid date

2011-12-17 10:56:39+00:00

Repository Details

Part of the Cambridge University Library Repository

Contact:
Cambridge University Library
West Road
Cambridge CB3 9DR United Kingdom