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Arnold, John, c1736 - 1799 (watch and chronometer maker)


Found in 1 Collection or Record:


Observations taken on Drakes Isle on Plymouth Sound, 1772-06-29 - 1772-07-09

Reference Code: GBR/0180/RGO 14/57: 1v-2v
Scope and Contents

The observations begin with a note on the going of the astronomical clock and on Mr Arnold’s watch. Included are observations of equal altitudes observed with an astronomical quadrant by Bird; observations for finding the latitude; comparisons of Mr Arnold’s Watch No. 2 with the astronomical clock; transits of the moon and stars over the meridian; and observations on the west variation of the meridian.

Dates: 1772-06-29 - 1772-07-09
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 (

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  • Subject: Drake's Island X