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Observational log, 1779-12-10 - 1780-09-08

Reference Code: GBR/0180/RGO 14/61/4: 6r-9r

Scope and Contents

Daily log of observations from December 1779 to September 1780, showing barometer and thermometer readings (in the morning, at noon, and in the evening), the latitude and longitude, magnetic variation and dip [of the needle], the wind direction and remarks on the weather. The entries also include occasional mention of the location of the two ships on their return journey (travelling via Macau, Pulo Condore [Côn Đảo], Krakatau, and the Cape of Good Hope).


  • Creation: 1779-12-10 - 1780-09-08


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 (


4 folio(s) (4 ff.) : Paper

Language of Materials



[Bayly, William]

Original geographic information

Cape of Good Hope [subject]

Original geographic information

Côn Đảo [subject]

Original geographic information

Krakatau [subject]

Original geographic information

Macau [subject]

Finding aid date

2012-11-16 14:32:31+00:00

Repository Details

Part of the Cambridge University Library Repository

Cambridge University Library
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Cambridge CB3 9DR United Kingdom