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Madrid

 Subject
Subject Source: Local sources

Found in 2 Collections and/or Records:

 Item

Letter and proposal from Don Josef de Porras y Ruiz, 1784-12-23

 Item
Reference Code: GBR/0180/RGO 14/38: 97-109
Scope and Contents From the Item:

Letter and proposal, with a related letter from Mr Fraser who forwarded the papers to Sir Harry Parker.

Dates: 1784-12-23
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).
 Item

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: 1783-08-18
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).