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Ramsden, Jesse, 1735 - 1800 (optician and mechanician)

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Found in 1 Collection or Record:

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Entries for May, 1774-05-01 - 1774-05-31

 Item
Reference Code: GBR/0180/RGO 14/56: 127r-134v
Scope and Contents

Entries for May include many observations of lunar distance, with mention that Bayly was using sextants by Dollond and Ramsden. Entries for 7-8 May record the ship’s bearings from St Helene [St Helena]. In the entry for 17 May, Bayly records that the log had exceeded the observations, requiring him to adjust his calculations. On 28 May he also recorded the loss of his thermometer, which broke when the bottom fell out having become unstuck.

Dates: 1774-05-01 - 1774-05-31
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).

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  • Subject: Saint Helena X